From 289bb7af5b9dc9a83e509b78be6f76440ef869f9 Mon Sep 17 00:00:00 2001 From: Cristy Date: Sun, 5 Aug 2018 08:08:55 -0400 Subject: [PATCH] ... --- ChangeLog | 4 + coders/fx.c | 6089 --------------------------------------------------- 2 files changed, 4 insertions(+), 6089 deletions(-) delete mode 100644 coders/fx.c diff --git a/ChangeLog b/ChangeLog index 52ea29492..ffdcb68bf 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,6 +1,10 @@ +2018-08-06 7.0.8-9 Cristy + * Release ImageMagick version 7.0.8-9, GIT revision 14583:300fdbcfd:20180723. + 2018-07-24 7.0.8-9 Cristy * XBM coder leaves the hex image data uninitialized if hex value of the pixel is negative. + * More improvements to SVG text handling. 2018-07-23 7.0.8-8 Cristy * Release ImageMagick version 7.0.8-8, GIT revision 14583:300fdbcfd:20180723. diff --git a/coders/fx.c b/coders/fx.c deleted file mode 100644 index 199abb1f0..000000000 --- a/coders/fx.c +++ /dev/null @@ -1,6089 +0,0 @@ -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% FFFFF X X % -% F X X % -% FFF X % -% F X X % -% F X X % -% % -% % -% MagickCore Image Special Effects Methods % -% % -% Software Design % -% Cristy % -% October 1996 % -% % -% % -% Copyright 1999-2018 ImageMagick Studio LLC, a non-profit organization % -% dedicated to making software imaging solutions freely available. % -% % -% You may not use this file except in compliance with the License. You may % -% obtain a copy of the License at % -% % -% https://www.imagemagick.org/script/license.php % -% % -% Unless required by applicable law or agreed to in writing, software % -% distributed under the License is distributed on an "AS IS" BASIS, % -% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % -% See the License for the specific language governing permissions and % -% limitations under the License. % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% -% -*/ - -/* - Include declarations. -*/ -#include "MagickCore/studio.h" -#include "MagickCore/accelerate-private.h" -#include "MagickCore/annotate.h" -#include "MagickCore/artifact.h" -#include "MagickCore/attribute.h" -#include "MagickCore/cache.h" -#include "MagickCore/cache-view.h" -#include "MagickCore/channel.h" -#include "MagickCore/color.h" -#include "MagickCore/color-private.h" -#include "MagickCore/colorspace-private.h" -#include "MagickCore/composite.h" -#include "MagickCore/decorate.h" -#include "MagickCore/distort.h" -#include "MagickCore/draw.h" -#include "MagickCore/effect.h" -#include "MagickCore/enhance.h" -#include "MagickCore/exception.h" -#include "MagickCore/exception-private.h" -#include "MagickCore/fx.h" -#include "MagickCore/fx-private.h" -#include "MagickCore/gem.h" -#include "MagickCore/gem-private.h" -#include "MagickCore/geometry.h" -#include "MagickCore/layer.h" -#include "MagickCore/list.h" -#include "MagickCore/log.h" -#include "MagickCore/image.h" -#include "MagickCore/image-private.h" -#include "MagickCore/magick.h" -#include "MagickCore/memory_.h" -#include "MagickCore/memory-private.h" -#include "MagickCore/monitor.h" -#include "MagickCore/monitor-private.h" -#include "MagickCore/option.h" -#include "MagickCore/pixel.h" -#include "MagickCore/pixel-accessor.h" -#include "MagickCore/property.h" -#include "MagickCore/quantum.h" -#include "MagickCore/quantum-private.h" -#include "MagickCore/random_.h" -#include "MagickCore/random-private.h" -#include "MagickCore/resample.h" -#include "MagickCore/resample-private.h" -#include "MagickCore/resize.h" -#include "MagickCore/resource_.h" -#include "MagickCore/splay-tree.h" -#include "MagickCore/statistic.h" -#include "MagickCore/string_.h" -#include "MagickCore/string-private.h" -#include "MagickCore/thread-private.h" -#include "MagickCore/transform.h" -#include "MagickCore/transform-private.h" -#include "MagickCore/utility.h" - -/* - Define declarations. -*/ -#define LeftShiftOperator 0xf5U -#define RightShiftOperator 0xf6U -#define LessThanEqualOperator 0xf7U -#define GreaterThanEqualOperator 0xf8U -#define EqualOperator 0xf9U -#define NotEqualOperator 0xfaU -#define LogicalAndOperator 0xfbU -#define LogicalOrOperator 0xfcU -#define ExponentialNotation 0xfdU - -struct _FxInfo -{ - const Image - *images; - - char - *expression; - - FILE - *file; - - SplayTreeInfo - *colors, - *symbols; - - CacheView - **view; - - RandomInfo - *random_info; - - ExceptionInfo - *exception; -}; - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -+ A c q u i r e F x I n f o % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% AcquireFxInfo() allocates the FxInfo structure. -% -% The format of the AcquireFxInfo method is: -% -% FxInfo *AcquireFxInfo(Image *images,const char *expression, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o images: the image sequence. -% -% o expression: the expression. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickPrivate FxInfo *AcquireFxInfo(const Image *images,const char *expression, - ExceptionInfo *exception) -{ - char - fx_op[2]; - - const Image - *next; - - FxInfo - *fx_info; - - register ssize_t - i; - - fx_info=(FxInfo *) AcquireCriticalMemory(sizeof(*fx_info)); - (void) memset(fx_info,0,sizeof(*fx_info)); - fx_info->exception=AcquireExceptionInfo(); - fx_info->images=images; - fx_info->colors=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory, - RelinquishMagickMemory); - fx_info->symbols=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory, - RelinquishMagickMemory); - fx_info->view=(CacheView **) AcquireQuantumMemory(GetImageListLength( - fx_info->images),sizeof(*fx_info->view)); - if (fx_info->view == (CacheView **) NULL) - ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); - i=0; - next=GetFirstImageInList(fx_info->images); - for ( ; next != (Image *) NULL; next=next->next) - { - fx_info->view[i]=AcquireVirtualCacheView(next,exception); - i++; - } - fx_info->random_info=AcquireRandomInfo(); - fx_info->expression=ConstantString(expression); - fx_info->file=stderr; - (void) SubstituteString(&fx_info->expression," ",""); /* compact string */ - /* - Force right-to-left associativity for unary negation. - */ - (void) SubstituteString(&fx_info->expression,"-","-1.0*"); - (void) SubstituteString(&fx_info->expression,"^-1.0*","^-"); - (void) SubstituteString(&fx_info->expression,"E-1.0*","E-"); - (void) SubstituteString(&fx_info->expression,"e-1.0*","e-"); - /* - Convert compound to simple operators. - */ - fx_op[1]='\0'; - *fx_op=(char) LeftShiftOperator; - (void) SubstituteString(&fx_info->expression,"<<",fx_op); - *fx_op=(char) RightShiftOperator; - (void) SubstituteString(&fx_info->expression,">>",fx_op); - *fx_op=(char) LessThanEqualOperator; - (void) SubstituteString(&fx_info->expression,"<=",fx_op); - *fx_op=(char) GreaterThanEqualOperator; - (void) SubstituteString(&fx_info->expression,">=",fx_op); - *fx_op=(char) EqualOperator; - (void) SubstituteString(&fx_info->expression,"==",fx_op); - *fx_op=(char) NotEqualOperator; - (void) SubstituteString(&fx_info->expression,"!=",fx_op); - *fx_op=(char) LogicalAndOperator; - (void) SubstituteString(&fx_info->expression,"&&",fx_op); - *fx_op=(char) LogicalOrOperator; - (void) SubstituteString(&fx_info->expression,"||",fx_op); - *fx_op=(char) ExponentialNotation; - (void) SubstituteString(&fx_info->expression,"**",fx_op); - return(fx_info); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% A d d N o i s e I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% AddNoiseImage() adds random noise to the image. -% -% The format of the AddNoiseImage method is: -% -% Image *AddNoiseImage(const Image *image,const NoiseType noise_type, -% const double attenuate,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o channel: the channel type. -% -% o noise_type: The type of noise: Uniform, Gaussian, Multiplicative, -% Impulse, Laplacian, or Poisson. -% -% o attenuate: attenuate the random distribution. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *AddNoiseImage(const Image *image,const NoiseType noise_type, - const double attenuate,ExceptionInfo *exception) -{ -#define AddNoiseImageTag "AddNoise/Image" - - CacheView - *image_view, - *noise_view; - - Image - *noise_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - RandomInfo - **magick_restrict random_info; - - ssize_t - y; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - unsigned long - key; -#endif - - /* - Initialize noise image attributes. - */ - assert(image != (const Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); -#if defined(MAGICKCORE_OPENCL_SUPPORT) - noise_image=AccelerateAddNoiseImage(image,noise_type,attenuate,exception); - if (noise_image != (Image *) NULL) - return(noise_image); -#endif - noise_image=CloneImage(image,0,0,MagickTrue,exception); - if (noise_image == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(noise_image,DirectClass,exception) == MagickFalse) - { - noise_image=DestroyImage(noise_image); - return((Image *) NULL); - } - /* - Add noise in each row. - */ - status=MagickTrue; - progress=0; - random_info=AcquireRandomInfoThreadSet(); - image_view=AcquireVirtualCacheView(image,exception); - noise_view=AcquireAuthenticCacheView(noise_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - key=GetRandomSecretKey(random_info[0]); - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(image,noise_image,image->rows,key == ~0UL) -#endif - for (y=0; y < (ssize_t) image->rows; y++) - { - const int - id = GetOpenMPThreadId(); - - MagickBooleanType - sync; - - register const Quantum - *magick_restrict p; - - register ssize_t - x; - - register Quantum - *magick_restrict q; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); - q=QueueCacheViewAuthenticPixels(noise_view,0,y,noise_image->columns,1, - exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) image->columns; x++) - { - register ssize_t - i; - - for (i=0; i < (ssize_t) GetPixelChannels(image); i++) - { - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - PixelTrait noise_traits=GetPixelChannelTraits(noise_image,channel); - if ((traits == UndefinedPixelTrait) || - (noise_traits == UndefinedPixelTrait)) - continue; - if ((noise_traits & CopyPixelTrait) != 0) - { - SetPixelChannel(noise_image,channel,p[i],q); - continue; - } - SetPixelChannel(noise_image,channel,ClampToQuantum( - GenerateDifferentialNoise(random_info[id],p[i],noise_type,attenuate)), - q); - } - p+=GetPixelChannels(image); - q+=GetPixelChannels(noise_image); - } - sync=SyncCacheViewAuthenticPixels(noise_view,exception); - if (sync == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_AddNoiseImage) -#endif - proceed=SetImageProgress(image,AddNoiseImageTag,progress++, - image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - noise_view=DestroyCacheView(noise_view); - image_view=DestroyCacheView(image_view); - random_info=DestroyRandomInfoThreadSet(random_info); - if (status == MagickFalse) - noise_image=DestroyImage(noise_image); - return(noise_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% B l u e S h i f t I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% BlueShiftImage() mutes the colors of the image to simulate a scene at -% nighttime in the moonlight. -% -% The format of the BlueShiftImage method is: -% -% Image *BlueShiftImage(const Image *image,const double factor, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o factor: the shift factor. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *BlueShiftImage(const Image *image,const double factor, - ExceptionInfo *exception) -{ -#define BlueShiftImageTag "BlueShift/Image" - - CacheView - *image_view, - *shift_view; - - Image - *shift_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - ssize_t - y; - - /* - Allocate blue shift image. - */ - assert(image != (const Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - shift_image=CloneImage(image,0,0,MagickTrue,exception); - if (shift_image == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(shift_image,DirectClass,exception) == MagickFalse) - { - shift_image=DestroyImage(shift_image); - return((Image *) NULL); - } - /* - Blue-shift DirectClass image. - */ - status=MagickTrue; - progress=0; - image_view=AcquireVirtualCacheView(image,exception); - shift_view=AcquireAuthenticCacheView(shift_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(image,shift_image,image->rows,1) -#endif - for (y=0; y < (ssize_t) image->rows; y++) - { - MagickBooleanType - sync; - - PixelInfo - pixel; - - Quantum - quantum; - - register const Quantum - *magick_restrict p; - - register ssize_t - x; - - register Quantum - *magick_restrict q; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); - q=QueueCacheViewAuthenticPixels(shift_view,0,y,shift_image->columns,1, - exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) image->columns; x++) - { - quantum=GetPixelRed(image,p); - if (GetPixelGreen(image,p) < quantum) - quantum=GetPixelGreen(image,p); - if (GetPixelBlue(image,p) < quantum) - quantum=GetPixelBlue(image,p); - pixel.red=0.5*(GetPixelRed(image,p)+factor*quantum); - pixel.green=0.5*(GetPixelGreen(image,p)+factor*quantum); - pixel.blue=0.5*(GetPixelBlue(image,p)+factor*quantum); - quantum=GetPixelRed(image,p); - if (GetPixelGreen(image,p) > quantum) - quantum=GetPixelGreen(image,p); - if (GetPixelBlue(image,p) > quantum) - quantum=GetPixelBlue(image,p); - pixel.red=0.5*(pixel.red+factor*quantum); - pixel.green=0.5*(pixel.green+factor*quantum); - pixel.blue=0.5*(pixel.blue+factor*quantum); - SetPixelRed(shift_image,ClampToQuantum(pixel.red),q); - SetPixelGreen(shift_image,ClampToQuantum(pixel.green),q); - SetPixelBlue(shift_image,ClampToQuantum(pixel.blue),q); - p+=GetPixelChannels(image); - q+=GetPixelChannels(shift_image); - } - sync=SyncCacheViewAuthenticPixels(shift_view,exception); - if (sync == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_BlueShiftImage) -#endif - proceed=SetImageProgress(image,BlueShiftImageTag,progress++, - image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - image_view=DestroyCacheView(image_view); - shift_view=DestroyCacheView(shift_view); - if (status == MagickFalse) - shift_image=DestroyImage(shift_image); - return(shift_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% C h a r c o a l I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% CharcoalImage() creates a new image that is a copy of an existing one with -% the edge highlighted. It allocates the memory necessary for the new Image -% structure and returns a pointer to the new image. -% -% The format of the CharcoalImage method is: -% -% Image *CharcoalImage(const Image *image,const double radius, -% const double sigma,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o radius: the radius of the pixel neighborhood. -% -% o sigma: the standard deviation of the Gaussian, in pixels. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *CharcoalImage(const Image *image,const double radius, - const double sigma,ExceptionInfo *exception) -{ - Image - *charcoal_image, - *clone_image, - *edge_image; - - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - clone_image=CloneImage(image,0,0,MagickTrue,exception); - if (clone_image == (Image *) NULL) - return((Image *) NULL); - edge_image=EdgeImage(clone_image,radius,exception); - clone_image=DestroyImage(clone_image); - if (edge_image == (Image *) NULL) - return((Image *) NULL); - charcoal_image=BlurImage(edge_image,radius,sigma,exception); - edge_image=DestroyImage(edge_image); - if (charcoal_image == (Image *) NULL) - return((Image *) NULL); - (void) NormalizeImage(charcoal_image,exception); - (void) NegateImage(charcoal_image,MagickFalse,exception); - (void) GrayscaleImage(charcoal_image,image->intensity,exception); - return(charcoal_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% C o l o r i z e I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% ColorizeImage() blends the fill color with each pixel in the image. -% A percentage blend is specified with opacity. Control the application -% of different color components by specifying a different percentage for -% each component (e.g. 90/100/10 is 90% red, 100% green, and 10% blue). -% -% The format of the ColorizeImage method is: -% -% Image *ColorizeImage(const Image *image,const char *blend, -% const PixelInfo *colorize,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o blend: A character string indicating the level of blending as a -% percentage. -% -% o colorize: A color value. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *ColorizeImage(const Image *image,const char *blend, - const PixelInfo *colorize,ExceptionInfo *exception) -{ -#define ColorizeImageTag "Colorize/Image" -#define Colorize(pixel,blend_percentage,colorize) \ - (((pixel)*(100.0-(blend_percentage))+(colorize)*(blend_percentage))/100.0) - - CacheView - *image_view; - - GeometryInfo - geometry_info; - - Image - *colorize_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - MagickStatusType - flags; - - PixelInfo - blend_percentage; - - ssize_t - y; - - /* - Allocate colorized image. - */ - assert(image != (const Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - colorize_image=CloneImage(image,0,0,MagickTrue,exception); - if (colorize_image == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(colorize_image,DirectClass,exception) == MagickFalse) - { - colorize_image=DestroyImage(colorize_image); - return((Image *) NULL); - } - if ((IsGrayColorspace(colorize_image->colorspace) != MagickFalse) || - (IsPixelInfoGray(colorize) != MagickFalse)) - (void) SetImageColorspace(colorize_image,sRGBColorspace,exception); - if ((colorize_image->alpha_trait == UndefinedPixelTrait) && - (colorize->alpha_trait != UndefinedPixelTrait)) - (void) SetImageAlpha(colorize_image,OpaqueAlpha,exception); - if (blend == (const char *) NULL) - return(colorize_image); - GetPixelInfo(colorize_image,&blend_percentage); - flags=ParseGeometry(blend,&geometry_info); - blend_percentage.red=geometry_info.rho; - blend_percentage.green=geometry_info.rho; - blend_percentage.blue=geometry_info.rho; - blend_percentage.black=geometry_info.rho; - blend_percentage.alpha=(MagickRealType) TransparentAlpha; - if ((flags & SigmaValue) != 0) - blend_percentage.green=geometry_info.sigma; - if ((flags & XiValue) != 0) - blend_percentage.blue=geometry_info.xi; - if ((flags & PsiValue) != 0) - blend_percentage.alpha=geometry_info.psi; - if (blend_percentage.colorspace == CMYKColorspace) - { - if ((flags & PsiValue) != 0) - blend_percentage.black=geometry_info.psi; - if ((flags & ChiValue) != 0) - blend_percentage.alpha=geometry_info.chi; - } - /* - Colorize DirectClass image. - */ - status=MagickTrue; - progress=0; - image_view=AcquireVirtualCacheView(colorize_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(colorize_image,colorize_image,colorize_image->rows,1) -#endif - for (y=0; y < (ssize_t) colorize_image->rows; y++) - { - MagickBooleanType - sync; - - register Quantum - *magick_restrict q; - - register ssize_t - x; - - if (status == MagickFalse) - continue; - q=GetCacheViewAuthenticPixels(image_view,0,y,colorize_image->columns,1, - exception); - if (q == (Quantum *) NULL) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) colorize_image->columns; x++) - { - register ssize_t - i; - - for (i=0; i < (ssize_t) GetPixelChannels(colorize_image); i++) - { - PixelTrait traits = GetPixelChannelTraits(colorize_image, - (PixelChannel) i); - if (traits == UndefinedPixelTrait) - continue; - if ((traits & CopyPixelTrait) != 0) - continue; - SetPixelChannel(colorize_image,(PixelChannel) i,ClampToQuantum( - Colorize(q[i],GetPixelInfoChannel(&blend_percentage,(PixelChannel) i), - GetPixelInfoChannel(colorize,(PixelChannel) i))),q); - } - q+=GetPixelChannels(colorize_image); - } - sync=SyncCacheViewAuthenticPixels(image_view,exception); - if (sync == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_ColorizeImage) -#endif - proceed=SetImageProgress(image,ColorizeImageTag,progress++, - colorize_image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - image_view=DestroyCacheView(image_view); - if (status == MagickFalse) - colorize_image=DestroyImage(colorize_image); - return(colorize_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% C o l o r M a t r i x I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% ColorMatrixImage() applies color transformation to an image. This method -% permits saturation changes, hue rotation, luminance to alpha, and various -% other effects. Although variable-sized transformation matrices can be used, -% typically one uses a 5x5 matrix for an RGBA image and a 6x6 for CMYKA -% (or RGBA with offsets). The matrix is similar to those used by Adobe Flash -% except offsets are in column 6 rather than 5 (in support of CMYKA images) -% and offsets are normalized (divide Flash offset by 255). -% -% The format of the ColorMatrixImage method is: -% -% Image *ColorMatrixImage(const Image *image, -% const KernelInfo *color_matrix,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o color_matrix: the color matrix. -% -% o exception: return any errors or warnings in this structure. -% -*/ -/* FUTURE: modify to make use of a MagickMatrix Mutliply function - That should be provided in "matrix.c" - (ASIDE: actually distorts should do this too but currently doesn't) -*/ - -MagickExport Image *ColorMatrixImage(const Image *image, - const KernelInfo *color_matrix,ExceptionInfo *exception) -{ -#define ColorMatrixImageTag "ColorMatrix/Image" - - CacheView - *color_view, - *image_view; - - double - ColorMatrix[6][6] = - { - { 1.0, 0.0, 0.0, 0.0, 0.0, 0.0 }, - { 0.0, 1.0, 0.0, 0.0, 0.0, 0.0 }, - { 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 }, - { 0.0, 0.0, 0.0, 1.0, 0.0, 0.0 }, - { 0.0, 0.0, 0.0, 0.0, 1.0, 0.0 }, - { 0.0, 0.0, 0.0, 0.0, 0.0, 1.0 } - }; - - Image - *color_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - register ssize_t - i; - - ssize_t - u, - v, - y; - - /* - Map given color_matrix, into a 6x6 matrix RGBKA and a constant - */ - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - i=0; - for (v=0; v < (ssize_t) color_matrix->height; v++) - for (u=0; u < (ssize_t) color_matrix->width; u++) - { - if ((v < 6) && (u < 6)) - ColorMatrix[v][u]=color_matrix->values[i]; - i++; - } - /* - Initialize color image. - */ - color_image=CloneImage(image,0,0,MagickTrue,exception); - if (color_image == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(color_image,DirectClass,exception) == MagickFalse) - { - color_image=DestroyImage(color_image); - return((Image *) NULL); - } - if (image->debug != MagickFalse) - { - char - format[MagickPathExtent], - *message; - - (void) LogMagickEvent(TransformEvent,GetMagickModule(), - " ColorMatrix image with color matrix:"); - message=AcquireString(""); - for (v=0; v < 6; v++) - { - *message='\0'; - (void) FormatLocaleString(format,MagickPathExtent,"%.20g: ",(double) v); - (void) ConcatenateString(&message,format); - for (u=0; u < 6; u++) - { - (void) FormatLocaleString(format,MagickPathExtent,"%+f ", - ColorMatrix[v][u]); - (void) ConcatenateString(&message,format); - } - (void) LogMagickEvent(TransformEvent,GetMagickModule(),"%s",message); - } - message=DestroyString(message); - } - /* - Apply the ColorMatrix to image. - */ - status=MagickTrue; - progress=0; - image_view=AcquireVirtualCacheView(image,exception); - color_view=AcquireAuthenticCacheView(color_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(image,color_image,image->rows,1) -#endif - for (y=0; y < (ssize_t) image->rows; y++) - { - PixelInfo - pixel; - - register const Quantum - *magick_restrict p; - - register Quantum - *magick_restrict q; - - register ssize_t - x; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); - q=GetCacheViewAuthenticPixels(color_view,0,y,color_image->columns,1, - exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - GetPixelInfo(image,&pixel); - for (x=0; x < (ssize_t) image->columns; x++) - { - register ssize_t - v; - - size_t - height; - - GetPixelInfoPixel(image,p,&pixel); - height=color_matrix->height > 6 ? 6UL : color_matrix->height; - for (v=0; v < (ssize_t) height; v++) - { - double - sum; - - sum=ColorMatrix[v][0]*GetPixelRed(image,p)+ColorMatrix[v][1]* - GetPixelGreen(image,p)+ColorMatrix[v][2]*GetPixelBlue(image,p); - if (image->colorspace == CMYKColorspace) - sum+=ColorMatrix[v][3]*GetPixelBlack(image,p); - if (image->alpha_trait != UndefinedPixelTrait) - sum+=ColorMatrix[v][4]*GetPixelAlpha(image,p); - sum+=QuantumRange*ColorMatrix[v][5]; - switch (v) - { - case 0: pixel.red=sum; break; - case 1: pixel.green=sum; break; - case 2: pixel.blue=sum; break; - case 3: pixel.black=sum; break; - case 4: pixel.alpha=sum; break; - default: break; - } - } - SetPixelViaPixelInfo(color_image,&pixel,q); - p+=GetPixelChannels(image); - q+=GetPixelChannels(color_image); - } - if (SyncCacheViewAuthenticPixels(color_view,exception) == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_ColorMatrixImage) -#endif - proceed=SetImageProgress(image,ColorMatrixImageTag,progress++, - image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - color_view=DestroyCacheView(color_view); - image_view=DestroyCacheView(image_view); - if (status == MagickFalse) - color_image=DestroyImage(color_image); - return(color_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -+ D e s t r o y F x I n f o % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% DestroyFxInfo() deallocates memory associated with an FxInfo structure. -% -% The format of the DestroyFxInfo method is: -% -% ImageInfo *DestroyFxInfo(ImageInfo *fx_info) -% -% A description of each parameter follows: -% -% o fx_info: the fx info. -% -*/ -MagickPrivate FxInfo *DestroyFxInfo(FxInfo *fx_info) -{ - register ssize_t - i; - - fx_info->exception=DestroyExceptionInfo(fx_info->exception); - fx_info->expression=DestroyString(fx_info->expression); - fx_info->symbols=DestroySplayTree(fx_info->symbols); - fx_info->colors=DestroySplayTree(fx_info->colors); - for (i=(ssize_t) GetImageListLength(fx_info->images)-1; i >= 0; i--) - fx_info->view[i]=DestroyCacheView(fx_info->view[i]); - fx_info->view=(CacheView **) RelinquishMagickMemory(fx_info->view); - fx_info->random_info=DestroyRandomInfo(fx_info->random_info); - fx_info=(FxInfo *) RelinquishMagickMemory(fx_info); - return(fx_info); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -+ F x E v a l u a t e C h a n n e l E x p r e s s i o n % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% FxEvaluateChannelExpression() evaluates an expression and returns the -% results. -% -% The format of the FxEvaluateExpression method is: -% -% double FxEvaluateChannelExpression(FxInfo *fx_info, -% const PixelChannel channel,const ssize_t x,const ssize_t y, -% double *alpha,Exceptioninfo *exception) -% double FxEvaluateExpression(FxInfo *fx_info, -% double *alpha,Exceptioninfo *exception) -% -% A description of each parameter follows: -% -% o fx_info: the fx info. -% -% o channel: the channel. -% -% o x,y: the pixel position. -% -% o alpha: the result. -% -% o exception: return any errors or warnings in this structure. -% -*/ - -static double FxChannelStatistics(FxInfo *fx_info,Image *image, - PixelChannel channel,const char *symbol,ExceptionInfo *exception) -{ - ChannelType - channel_mask; - - char - key[MagickPathExtent], - statistic[MagickPathExtent]; - - const char - *value; - - register const char - *p; - - channel_mask=UndefinedChannel; - for (p=symbol; (*p != '.') && (*p != '\0'); p++) ; - if (*p == '.') - { - ssize_t - option; - - option=ParseCommandOption(MagickPixelChannelOptions,MagickTrue,p+1); - if (option >= 0) - { - channel=(PixelChannel) option; - channel_mask=SetPixelChannelMask(image,(ChannelType) - (1UL << channel)); - } - } - (void) FormatLocaleString(key,MagickPathExtent,"%p.%.20g.%s",(void *) image, - (double) channel,symbol); - value=(const char *) GetValueFromSplayTree(fx_info->symbols,key); - if (value != (const char *) NULL) - { - if (channel_mask != UndefinedChannel) - (void) SetPixelChannelMask(image,channel_mask); - return(QuantumScale*StringToDouble(value,(char **) NULL)); - } - (void) DeleteNodeFromSplayTree(fx_info->symbols,key); - if (LocaleNCompare(symbol,"depth",5) == 0) - { - size_t - depth; - - depth=GetImageDepth(image,exception); - (void) FormatLocaleString(statistic,MagickPathExtent,"%.20g",(double) - depth); - } - if (LocaleNCompare(symbol,"kurtosis",8) == 0) - { - double - kurtosis, - skewness; - - (void) GetImageKurtosis(image,&kurtosis,&skewness,exception); - (void) FormatLocaleString(statistic,MagickPathExtent,"%.20g",kurtosis); - } - if (LocaleNCompare(symbol,"maxima",6) == 0) - { - double - maxima, - minima; - - (void) GetImageRange(image,&minima,&maxima,exception); - (void) FormatLocaleString(statistic,MagickPathExtent,"%.20g",maxima); - } - if (LocaleNCompare(symbol,"mean",4) == 0) - { - double - mean, - standard_deviation; - - (void) GetImageMean(image,&mean,&standard_deviation,exception); - (void) FormatLocaleString(statistic,MagickPathExtent,"%.20g",mean); - } - if (LocaleNCompare(symbol,"minima",6) == 0) - { - double - maxima, - minima; - - (void) GetImageRange(image,&minima,&maxima,exception); - (void) FormatLocaleString(statistic,MagickPathExtent,"%.20g",minima); - } - if (LocaleNCompare(symbol,"skewness",8) == 0) - { - double - kurtosis, - skewness; - - (void) GetImageKurtosis(image,&kurtosis,&skewness,exception); - (void) FormatLocaleString(statistic,MagickPathExtent,"%.20g",skewness); - } - if (LocaleNCompare(symbol,"standard_deviation",18) == 0) - { - double - mean, - standard_deviation; - - (void) GetImageMean(image,&mean,&standard_deviation,exception); - (void) FormatLocaleString(statistic,MagickPathExtent,"%.20g", - standard_deviation); - } - if (channel_mask != UndefinedChannel) - (void) SetPixelChannelMask(image,channel_mask); - (void) AddValueToSplayTree(fx_info->symbols,ConstantString(key), - ConstantString(statistic)); - return(QuantumScale*StringToDouble(statistic,(char **) NULL)); -} - -static double - FxEvaluateSubexpression(FxInfo *,const PixelChannel,const ssize_t, - const ssize_t,const char *,const size_t,double *,ExceptionInfo *); - -static MagickOffsetType FxGCD(MagickOffsetType alpha,MagickOffsetType beta) -{ - if (beta != 0) - return(FxGCD(beta,alpha % beta)); - return(alpha); -} - -static inline const char *FxSubexpression(const char *expression, - ExceptionInfo *exception) -{ - const char - *subexpression; - - register ssize_t - level; - - level=0; - subexpression=expression; - while ((*subexpression != '\0') && - ((level != 1) || (strchr(")",(int) *subexpression) == (char *) NULL))) - { - if (strchr("(",(int) *subexpression) != (char *) NULL) - level++; - else - if (strchr(")",(int) *subexpression) != (char *) NULL) - level--; - subexpression++; - } - if (*subexpression == '\0') - (void) ThrowMagickException(exception,GetMagickModule(),OptionError, - "UnbalancedParenthesis","`%s'",expression); - return(subexpression); -} - -static double FxGetSymbol(FxInfo *fx_info,const PixelChannel channel, - const ssize_t x,const ssize_t y,const char *expression,const size_t depth, - ExceptionInfo *exception) -{ - char - *q, - symbol[MagickPathExtent]; - - const char - *p, - *value; - - Image - *image; - - MagickBooleanType - status; - - PixelInfo - pixel; - - double - alpha, - beta; - - PointInfo - point; - - register ssize_t - i; - - size_t - level; - - p=expression; - i=GetImageIndexInList(fx_info->images); - level=0; - point.x=(double) x; - point.y=(double) y; - if (isalpha((int) ((unsigned char) *(p+1))) == 0) - { - char - *subexpression; - - subexpression=AcquireString(expression); - if (strchr("suv",(int) *p) != (char *) NULL) - { - switch (*p) - { - case 's': - default: - { - i=GetImageIndexInList(fx_info->images); - break; - } - case 'u': i=0; break; - case 'v': i=1; break; - } - p++; - if (*p == '[') - { - level++; - q=subexpression; - for (p++; *p != '\0'; ) - { - if (*p == '[') - level++; - else - if (*p == ']') - { - level--; - if (level == 0) - break; - } - *q++=(*p++); - } - *q='\0'; - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression, - depth,&beta,exception); - i=(ssize_t) alpha; - if (*p != '\0') - p++; - } - if (*p == '.') - p++; - } - if ((*p == 'p') && (isalpha((int) ((unsigned char) *(p+1))) == 0)) - { - p++; - if (*p == '{') - { - level++; - q=subexpression; - for (p++; *p != '\0'; ) - { - if (*p == '{') - level++; - else - if (*p == '}') - { - level--; - if (level == 0) - break; - } - *q++=(*p++); - } - *q='\0'; - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression, - depth,&beta,exception); - point.x=alpha; - point.y=beta; - if (*p != '\0') - p++; - } - else - if (*p == '[') - { - level++; - q=subexpression; - for (p++; *p != '\0'; ) - { - if (*p == '[') - level++; - else - if (*p == ']') - { - level--; - if (level == 0) - break; - } - *q++=(*p++); - } - *q='\0'; - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression, - depth,&beta,exception); - point.x+=alpha; - point.y+=beta; - if (*p != '\0') - p++; - } - if (*p == '.') - p++; - } - subexpression=DestroyString(subexpression); - } - image=GetImageFromList(fx_info->images,i); - if (image == (Image *) NULL) - { - (void) ThrowMagickException(exception,GetMagickModule(),OptionError, - "NoSuchImage","`%s'",expression); - return(0.0); - } - i=GetImageIndexInList(image); - GetPixelInfo(image,&pixel); - status=InterpolatePixelInfo(image,fx_info->view[i],image->interpolate, - point.x,point.y,&pixel,exception); - (void) status; - if ((strlen(p) > 2) && (LocaleCompare(p,"intensity") != 0) && - (LocaleCompare(p,"luma") != 0) && (LocaleCompare(p,"luminance") != 0) && - (LocaleCompare(p,"hue") != 0) && (LocaleCompare(p,"saturation") != 0) && - (LocaleCompare(p,"lightness") != 0)) - { - char - name[MagickPathExtent]; - - (void) CopyMagickString(name,p,MagickPathExtent); - for (q=name+(strlen(name)-1); q > name; q--) - { - if (*q == ')') - break; - if (*q == '.') - { - *q='\0'; - break; - } - } - if ((strlen(name) > 2) && - (GetValueFromSplayTree(fx_info->symbols,name) == (const char *) NULL)) - { - PixelInfo - *color; - - color=(PixelInfo *) GetValueFromSplayTree(fx_info->colors,name); - if (color != (PixelInfo *) NULL) - { - pixel=(*color); - p+=strlen(name); - } - else - { - MagickBooleanType - status; - - status=QueryColorCompliance(name,AllCompliance,&pixel, - fx_info->exception); - if (status != MagickFalse) - { - (void) AddValueToSplayTree(fx_info->colors,ConstantString( - name),ClonePixelInfo(&pixel)); - p+=strlen(name); - } - } - } - } - (void) CopyMagickString(symbol,p,MagickPathExtent); - StripString(symbol); - if (*symbol == '\0') - { - switch (channel) - { - case RedPixelChannel: return(QuantumScale*pixel.red); - case GreenPixelChannel: return(QuantumScale*pixel.green); - case BluePixelChannel: return(QuantumScale*pixel.blue); - case BlackPixelChannel: - { - if (image->colorspace != CMYKColorspace) - { - (void) ThrowMagickException(exception,GetMagickModule(), - ImageError,"ColorSeparatedImageRequired","`%s'", - image->filename); - return(0.0); - } - return(QuantumScale*pixel.black); - } - case AlphaPixelChannel: - { - if (pixel.alpha_trait == UndefinedPixelTrait) - return(1.0); - alpha=(double) (QuantumScale*pixel.alpha); - return(alpha); - } - case IndexPixelChannel: - return(0.0); - case IntensityPixelChannel: - { - Quantum - quantum_pixel[MaxPixelChannels]; - - SetPixelViaPixelInfo(image,&pixel,quantum_pixel); - return(QuantumScale*GetPixelIntensity(image,quantum_pixel)); - } - default: - break; - } - (void) ThrowMagickException(exception,GetMagickModule(),OptionError, - "UnableToParseExpression","`%s'",p); - return(0.0); - } - switch (*symbol) - { - case 'A': - case 'a': - { - if (LocaleCompare(symbol,"a") == 0) - return((QuantumScale*pixel.alpha)); - break; - } - case 'B': - case 'b': - { - if (LocaleCompare(symbol,"b") == 0) - return(QuantumScale*pixel.blue); - break; - } - case 'C': - case 'c': - { - if (LocaleNCompare(symbol,"channel",7) == 0) - { - GeometryInfo - channel_info; - - MagickStatusType - flags; - - flags=ParseGeometry(symbol+7,&channel_info); - if (image->colorspace == CMYKColorspace) - switch (channel) - { - case CyanPixelChannel: - { - if ((flags & RhoValue) == 0) - return(0.0); - return(channel_info.rho); - } - case MagentaPixelChannel: - { - if ((flags & SigmaValue) == 0) - return(0.0); - return(channel_info.sigma); - } - case YellowPixelChannel: - { - if ((flags & XiValue) == 0) - return(0.0); - return(channel_info.xi); - } - case BlackPixelChannel: - { - if ((flags & PsiValue) == 0) - return(0.0); - return(channel_info.psi); - } - case AlphaPixelChannel: - { - if ((flags & ChiValue) == 0) - return(0.0); - return(channel_info.chi); - } - default: - return(0.0); - } - switch (channel) - { - case RedPixelChannel: - { - if ((flags & RhoValue) == 0) - return(0.0); - return(channel_info.rho); - } - case GreenPixelChannel: - { - if ((flags & SigmaValue) == 0) - return(0.0); - return(channel_info.sigma); - } - case BluePixelChannel: - { - if ((flags & XiValue) == 0) - return(0.0); - return(channel_info.xi); - } - case BlackPixelChannel: - { - if ((flags & ChiValue) == 0) - return(0.0); - return(channel_info.chi); - } - case AlphaPixelChannel: - { - if ((flags & PsiValue) == 0) - return(0.0); - return(channel_info.psi); - } - default: - return(0.0); - } - } - if (LocaleCompare(symbol,"c") == 0) - return(QuantumScale*pixel.red); - break; - } - case 'D': - case 'd': - { - if (LocaleNCompare(symbol,"depth",5) == 0) - return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); - break; - } - case 'E': - case 'e': - { - if (LocaleCompare(symbol,"extent") == 0) - { - if (image->extent != 0) - return(image->extent); - return(GetBlobSize(image)); - } - break; - } - case 'G': - case 'g': - { - if (LocaleCompare(symbol,"g") == 0) - return(QuantumScale*pixel.green); - break; - } - case 'K': - case 'k': - { - if (LocaleNCompare(symbol,"kurtosis",8) == 0) - return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); - if (LocaleCompare(symbol,"k") == 0) - { - if (image->colorspace != CMYKColorspace) - { - (void) ThrowMagickException(exception,GetMagickModule(), - OptionError,"ColorSeparatedImageRequired","`%s'", - image->filename); - return(0.0); - } - return(QuantumScale*pixel.black); - } - break; - } - case 'H': - case 'h': - { - if (LocaleCompare(symbol,"h") == 0) - return((double) image->rows); - if (LocaleCompare(symbol,"hue") == 0) - { - double - hue, - lightness, - saturation; - - ConvertRGBToHSL(pixel.red,pixel.green,pixel.blue,&hue,&saturation, - &lightness); - return(hue); - } - break; - } - case 'I': - case 'i': - { - if ((LocaleCompare(symbol,"image.depth") == 0) || - (LocaleCompare(symbol,"image.minima") == 0) || - (LocaleCompare(symbol,"image.maxima") == 0) || - (LocaleCompare(symbol,"image.mean") == 0) || - (LocaleCompare(symbol,"image.kurtosis") == 0) || - (LocaleCompare(symbol,"image.skewness") == 0) || - (LocaleCompare(symbol,"image.standard_deviation") == 0)) - return(FxChannelStatistics(fx_info,image,channel,symbol+6,exception)); - if (LocaleCompare(symbol,"image.resolution.x") == 0) - return(image->resolution.x); - if (LocaleCompare(symbol,"image.resolution.y") == 0) - return(image->resolution.y); - if (LocaleCompare(symbol,"intensity") == 0) - { - Quantum - quantum_pixel[MaxPixelChannels]; - - SetPixelViaPixelInfo(image,&pixel,quantum_pixel); - return(QuantumScale*GetPixelIntensity(image,quantum_pixel)); - } - if (LocaleCompare(symbol,"i") == 0) - return((double) x); - break; - } - case 'J': - case 'j': - { - if (LocaleCompare(symbol,"j") == 0) - return((double) y); - break; - } - case 'L': - case 'l': - { - if (LocaleCompare(symbol,"lightness") == 0) - { - double - hue, - lightness, - saturation; - - ConvertRGBToHSL(pixel.red,pixel.green,pixel.blue,&hue,&saturation, - &lightness); - return(lightness); - } - if (LocaleCompare(symbol,"luma") == 0) - { - double - luma; - - luma=0.212656*pixel.red+0.715158*pixel.green+0.072186*pixel.blue; - return(QuantumScale*luma); - } - if (LocaleCompare(symbol,"luminance") == 0) - { - double - luminence; - - luminence=0.212656*pixel.red+0.715158*pixel.green+0.072186*pixel.blue; - return(QuantumScale*luminence); - } - break; - } - case 'M': - case 'm': - { - if (LocaleNCompare(symbol,"maxima",6) == 0) - return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); - if (LocaleNCompare(symbol,"mean",4) == 0) - return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); - if (LocaleNCompare(symbol,"minima",6) == 0) - return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); - if (LocaleCompare(symbol,"m") == 0) - return(QuantumScale*pixel.green); - break; - } - case 'N': - case 'n': - { - if (LocaleCompare(symbol,"n") == 0) - return((double) GetImageListLength(fx_info->images)); - break; - } - case 'O': - case 'o': - { - if (LocaleCompare(symbol,"o") == 0) - return(QuantumScale*pixel.alpha); - break; - } - case 'P': - case 'p': - { - if (LocaleCompare(symbol,"page.height") == 0) - return((double) image->page.height); - if (LocaleCompare(symbol,"page.width") == 0) - return((double) image->page.width); - if (LocaleCompare(symbol,"page.x") == 0) - return((double) image->page.x); - if (LocaleCompare(symbol,"page.y") == 0) - return((double) image->page.y); - break; - } - case 'Q': - case 'q': - { - if (LocaleCompare(symbol,"quality") == 0) - return((double) image->quality); - break; - } - case 'R': - case 'r': - { - if (LocaleCompare(symbol,"resolution.x") == 0) - return(image->resolution.x); - if (LocaleCompare(symbol,"resolution.y") == 0) - return(image->resolution.y); - if (LocaleCompare(symbol,"r") == 0) - return(QuantumScale*pixel.red); - break; - } - case 'S': - case 's': - { - if (LocaleCompare(symbol,"saturation") == 0) - { - double - hue, - lightness, - saturation; - - ConvertRGBToHSL(pixel.red,pixel.green,pixel.blue,&hue,&saturation, - &lightness); - return(saturation); - } - if (LocaleNCompare(symbol,"skewness",8) == 0) - return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); - if (LocaleNCompare(symbol,"standard_deviation",18) == 0) - return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); - break; - } - case 'T': - case 't': - { - if (LocaleCompare(symbol,"t") == 0) - return((double) GetImageIndexInList(fx_info->images)); - break; - } - case 'W': - case 'w': - { - if (LocaleCompare(symbol,"w") == 0) - return((double) image->columns); - break; - } - case 'Y': - case 'y': - { - if (LocaleCompare(symbol,"y") == 0) - return(QuantumScale*pixel.blue); - break; - } - case 'Z': - case 'z': - { - if (LocaleCompare(symbol,"z") == 0) - return((double) GetImageDepth(image,fx_info->exception)); - break; - } - default: - break; - } - value=(const char *) GetValueFromSplayTree(fx_info->symbols,symbol); - if (value != (const char *) NULL) - return(StringToDouble(value,(char **) NULL)); - (void) ThrowMagickException(exception,GetMagickModule(),OptionError, - "UnableToParseExpression","`%s'",symbol); - return(0.0); -} - -static const char *FxOperatorPrecedence(const char *expression, - ExceptionInfo *exception) -{ - typedef enum - { - UndefinedPrecedence, - NullPrecedence, - BitwiseComplementPrecedence, - ExponentPrecedence, - ExponentialNotationPrecedence, - MultiplyPrecedence, - AdditionPrecedence, - ShiftPrecedence, - RelationalPrecedence, - EquivalencyPrecedence, - BitwiseAndPrecedence, - BitwiseOrPrecedence, - LogicalAndPrecedence, - LogicalOrPrecedence, - TernaryPrecedence, - AssignmentPrecedence, - CommaPrecedence, - SeparatorPrecedence - } FxPrecedence; - - FxPrecedence - precedence, - target; - - register const char - *subexpression; - - register int - c; - - size_t - level; - - c=(-1); - level=0; - subexpression=(const char *) NULL; - target=NullPrecedence; - while ((c != '\0') && (*expression != '\0')) - { - precedence=UndefinedPrecedence; - if ((isspace((int) ((unsigned char) *expression)) != 0) || (c == (int) '@')) - { - expression++; - continue; - } - switch (*expression) - { - case 'A': - case 'a': - { -#if defined(MAGICKCORE_HAVE_ACOSH) - if (LocaleNCompare(expression,"acosh",5) == 0) - { - expression+=5; - break; - } -#endif -#if defined(MAGICKCORE_HAVE_ASINH) - if (LocaleNCompare(expression,"asinh",5) == 0) - { - expression+=5; - break; - } -#endif -#if defined(MAGICKCORE_HAVE_ATANH) - if (LocaleNCompare(expression,"atanh",5) == 0) - { - expression+=5; - break; - } -#endif - if (LocaleNCompare(expression,"atan2",5) == 0) - { - expression+=5; - break; - } - break; - } - case 'E': - case 'e': - { - if ((isdigit(c) != 0) && - ((LocaleNCompare(expression,"E+",2) == 0) || - (LocaleNCompare(expression,"E-",2) == 0))) - { - expression+=2; /* scientific notation */ - break; - } - } - case 'J': - case 'j': - { - if ((LocaleNCompare(expression,"j0",2) == 0) || - (LocaleNCompare(expression,"j1",2) == 0)) - { - expression+=2; - break; - } - break; - } - case '#': - { - while (isxdigit((int) ((unsigned char) *(expression+1))) != 0) - expression++; - break; - } - default: - break; - } - if ((c == (int) '{') || (c == (int) '[')) - level++; - else - if ((c == (int) '}') || (c == (int) ']')) - level--; - if (level == 0) - switch ((unsigned char) *expression) - { - case '~': - case '!': - { - precedence=BitwiseComplementPrecedence; - break; - } - case '^': - case '@': - { - precedence=ExponentPrecedence; - break; - } - default: - { - if (((c != 0) && ((isdigit(c) != 0) || - (strchr(")",c) != (char *) NULL))) && - (((islower((int) ((unsigned char) *expression)) != 0) || - (strchr("(",(int) ((unsigned char) *expression)) != (char *) NULL)) || - ((isdigit(c) == 0) && - (isdigit((int) ((unsigned char) *expression)) != 0))) && - (strchr("xy",(int) ((unsigned char) *expression)) == (char *) NULL)) - precedence=MultiplyPrecedence; - break; - } - case '*': - case '/': - case '%': - { - precedence=MultiplyPrecedence; - break; - } - case '+': - case '-': - { - if ((strchr("(+-/*%:&^|<>~,",c) == (char *) NULL) || - (isalpha(c) != 0)) - precedence=AdditionPrecedence; - break; - } - case LeftShiftOperator: - case RightShiftOperator: - { - precedence=ShiftPrecedence; - break; - } - case '<': - case LessThanEqualOperator: - case GreaterThanEqualOperator: - case '>': - { - precedence=RelationalPrecedence; - break; - } - case EqualOperator: - case NotEqualOperator: - { - precedence=EquivalencyPrecedence; - break; - } - case '&': - { - precedence=BitwiseAndPrecedence; - break; - } - case '|': - { - precedence=BitwiseOrPrecedence; - break; - } - case LogicalAndOperator: - { - precedence=LogicalAndPrecedence; - break; - } - case LogicalOrOperator: - { - precedence=LogicalOrPrecedence; - break; - } - case ExponentialNotation: - { - precedence=ExponentialNotationPrecedence; - break; - } - case ':': - case '?': - { - precedence=TernaryPrecedence; - break; - } - case '=': - { - precedence=AssignmentPrecedence; - break; - } - case ',': - { - precedence=CommaPrecedence; - break; - } - case ';': - { - precedence=SeparatorPrecedence; - break; - } - } - if ((precedence == BitwiseComplementPrecedence) || - (precedence == TernaryPrecedence) || - (precedence == AssignmentPrecedence)) - { - if (precedence > target) - { - /* - Right-to-left associativity. - */ - target=precedence; - subexpression=expression; - } - } - else - if (precedence >= target) - { - /* - Left-to-right associativity. - */ - target=precedence; - subexpression=expression; - } - if (strchr("(",(int) *expression) != (char *) NULL) - expression=FxSubexpression(expression,exception); - c=(int) (*expression++); - } - return(subexpression); -} - -static double FxEvaluateSubexpression(FxInfo *fx_info, - const PixelChannel channel,const ssize_t x,const ssize_t y, - const char *expression,const size_t depth,double *beta, - ExceptionInfo *exception) -{ -#define FxMaxParenthesisDepth 58 -#define FxMaxSubexpressionDepth 200 -#define FxReturn(value) \ -{ \ - subexpression=DestroyString(subexpression); \ - return(value); \ -} - - char - *q, - *subexpression; - - double - alpha, - gamma; - - register const char - *p; - - *beta=0.0; - subexpression=AcquireString(expression); - *subexpression='\0'; - if (depth > FxMaxSubexpressionDepth) - { - (void) ThrowMagickException(exception,GetMagickModule(),OptionError, - "UnableToParseExpression","`%s'",expression); - FxReturn(0.0); - } - if (exception->severity >= ErrorException) - FxReturn(0.0); - while (isspace((int) ((unsigned char) *expression)) != 0) - expression++; - if (*expression == '\0') - FxReturn(0.0); - p=FxOperatorPrecedence(expression,exception); - if (p != (const char *) NULL) - { - (void) CopyMagickString(subexpression,expression,(size_t) - (p-expression+1)); - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression,depth+1, - beta,exception); - switch ((unsigned char) *p) - { - case '~': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - *beta=(double) (~(size_t) *beta); - FxReturn(*beta); - } - case '!': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(*beta == 0.0 ? 1.0 : 0.0); - } - case '^': - { - *beta=pow(alpha,FxEvaluateSubexpression(fx_info,channel,x,y,++p, - depth+1,beta,exception)); - FxReturn(*beta); - } - case '*': - case ExponentialNotation: - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(alpha*(*beta)); - } - case '/': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - if (*beta == 0.0) - { - (void) ThrowMagickException(exception,GetMagickModule(), - OptionError,"DivideByZero","`%s'",expression); - FxReturn(0.0); - } - FxReturn(alpha/(*beta)); - } - case '%': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - *beta=fabs(floor((*beta)+0.5)); - if (*beta == 0.0) - { - (void) ThrowMagickException(exception,GetMagickModule(), - OptionError,"DivideByZero","`%s'",expression); - FxReturn(0.0); - } - FxReturn(fmod(alpha,*beta)); - } - case '+': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(alpha+(*beta)); - } - case '-': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(alpha-(*beta)); - } - case LeftShiftOperator: - { - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - if ((size_t) (gamma+0.5) >= (8*sizeof(size_t))) - { - (void) ThrowMagickException(exception,GetMagickModule(), - OptionError,"ShiftCountOverflow","`%s'",subexpression); - FxReturn(0.0); - } - *beta=(double) ((size_t) (alpha+0.5) << (size_t) (gamma+0.5)); - FxReturn(*beta); - } - case RightShiftOperator: - { - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - if ((size_t) (gamma+0.5) >= (8*sizeof(size_t))) - { - (void) ThrowMagickException(exception,GetMagickModule(), - OptionError,"ShiftCountOverflow","`%s'",subexpression); - FxReturn(0.0); - } - *beta=(double) ((size_t) (alpha+0.5) >> (size_t) (gamma+0.5)); - FxReturn(*beta); - } - case '<': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(alpha < *beta ? 1.0 : 0.0); - } - case LessThanEqualOperator: - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(alpha <= *beta ? 1.0 : 0.0); - } - case '>': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(alpha > *beta ? 1.0 : 0.0); - } - case GreaterThanEqualOperator: - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(alpha >= *beta ? 1.0 : 0.0); - } - case EqualOperator: - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(fabs(alpha-(*beta)) < MagickEpsilon ? 1.0 : 0.0); - } - case NotEqualOperator: - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(fabs(alpha-(*beta)) >= MagickEpsilon ? 1.0 : 0.0); - } - case '&': - { - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - *beta=(double) ((size_t) (alpha+0.5) & (size_t) (gamma+0.5)); - FxReturn(*beta); - } - case '|': - { - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - *beta=(double) ((size_t) (alpha+0.5) | (size_t) (gamma+0.5)); - FxReturn(*beta); - } - case LogicalAndOperator: - { - p++; - if (alpha <= 0.0) - { - *beta=0.0; - FxReturn(*beta); - } - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,p,depth+1,beta, - exception); - *beta=(gamma > 0.0) ? 1.0 : 0.0; - FxReturn(*beta); - } - case LogicalOrOperator: - { - p++; - if (alpha > 0.0) - { - *beta=1.0; - FxReturn(*beta); - } - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,p,depth+1,beta, - exception); - *beta=(gamma > 0.0) ? 1.0 : 0.0; - FxReturn(*beta); - } - case '?': - { - (void) CopyMagickString(subexpression,++p,MagickPathExtent); - q=subexpression; - p=StringToken(":",&q); - if (q == (char *) NULL) - { - (void) ThrowMagickException(exception,GetMagickModule(), - OptionError,"UnableToParseExpression","`%s'",subexpression); - FxReturn(0.0); - } - if (fabs(alpha) >= MagickEpsilon) - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,p,depth+1,beta, - exception); - else - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,q,depth+1,beta, - exception); - FxReturn(gamma); - } - case '=': - { - char - numeric[MagickPathExtent]; - - q=subexpression; - while (isalpha((int) ((unsigned char) *q)) != 0) - q++; - if (*q != '\0') - { - (void) ThrowMagickException(exception,GetMagickModule(), - OptionError,"UnableToParseExpression","`%s'",subexpression); - FxReturn(0.0); - } - ClearMagickException(exception); - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - (void) FormatLocaleString(numeric,MagickPathExtent,"%.20g",*beta); - (void) DeleteNodeFromSplayTree(fx_info->symbols,subexpression); - (void) AddValueToSplayTree(fx_info->symbols,ConstantString( - subexpression),ConstantString(numeric)); - FxReturn(*beta); - } - case ',': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(alpha); - } - case ';': - { - *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1,beta, - exception); - FxReturn(*beta); - } - default: - { - gamma=alpha*FxEvaluateSubexpression(fx_info,channel,x,y,++p,depth+1, - beta,exception); - FxReturn(gamma); - } - } - } - if (strchr("(",(int) *expression) != (char *) NULL) - { - if (depth >= FxMaxParenthesisDepth) - (void) ThrowMagickException(exception,GetMagickModule(),OptionError, - "ParenthesisNestedTooDeeply","`%s'",expression); - (void) CopyMagickString(subexpression,expression+1,MagickPathExtent); - if (strlen(subexpression) != 0) - subexpression[strlen(subexpression)-1]='\0'; - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression,depth+1, - beta,exception); - FxReturn(gamma); - } - switch (*expression) - { - case '+': - { - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,expression+1,depth+1, - beta,exception); - FxReturn(1.0*gamma); - } - case '-': - { - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,expression+1,depth+1, - beta,exception); - FxReturn(-1.0*gamma); - } - case '~': - { - gamma=FxEvaluateSubexpression(fx_info,channel,x,y,expression+1,depth+1, - beta,exception); - FxReturn((double) (~(size_t) (gamma+0.5))); - } - case 'A': - case 'a': - { - if (LocaleNCompare(expression,"abs",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(fabs(alpha)); - } -#if defined(MAGICKCORE_HAVE_ACOSH) - if (LocaleNCompare(expression,"acosh",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - FxReturn(acosh(alpha)); - } -#endif - if (LocaleNCompare(expression,"acos",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(acos(alpha)); - } -#if defined(MAGICKCORE_HAVE_J1) - if (LocaleNCompare(expression,"airy",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - if (alpha == 0.0) - FxReturn(1.0); - gamma=2.0*j1((MagickPI*alpha))/(MagickPI*alpha); - FxReturn(gamma*gamma); - } -#endif -#if defined(MAGICKCORE_HAVE_ASINH) - if (LocaleNCompare(expression,"asinh",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - FxReturn(asinh(alpha)); - } -#endif - if (LocaleNCompare(expression,"asin",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(asin(alpha)); - } - if (LocaleNCompare(expression,"alt",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(((ssize_t) alpha) & 0x01 ? -1.0 : 1.0); - } - if (LocaleNCompare(expression,"atan2",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - FxReturn(atan2(alpha,*beta)); - } -#if defined(MAGICKCORE_HAVE_ATANH) - if (LocaleNCompare(expression,"atanh",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - FxReturn(atanh(alpha)); - } -#endif - if (LocaleNCompare(expression,"atan",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(atan(alpha)); - } - if (LocaleCompare(expression,"a") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'B': - case 'b': - { - if (LocaleCompare(expression,"b") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'C': - case 'c': - { - if (LocaleNCompare(expression,"ceil",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(ceil(alpha)); - } - if (LocaleNCompare(expression,"clamp",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - if (alpha < 0.0) - FxReturn(0.0); - if (alpha > 1.0) - FxReturn(1.0); - FxReturn(alpha); - } - if (LocaleNCompare(expression,"cosh",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(cosh(alpha)); - } - if (LocaleNCompare(expression,"cos",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(cos(alpha)); - } - if (LocaleCompare(expression,"c") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'D': - case 'd': - { - if (LocaleNCompare(expression,"debug",5) == 0) - { - const char - *type; - - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - if (fx_info->images->colorspace == CMYKColorspace) - switch (channel) - { - case CyanPixelChannel: type="cyan"; break; - case MagentaPixelChannel: type="magenta"; break; - case YellowPixelChannel: type="yellow"; break; - case AlphaPixelChannel: type="opacity"; break; - case BlackPixelChannel: type="black"; break; - default: type="unknown"; break; - } - else - switch (channel) - { - case RedPixelChannel: type="red"; break; - case GreenPixelChannel: type="green"; break; - case BluePixelChannel: type="blue"; break; - case AlphaPixelChannel: type="opacity"; break; - default: type="unknown"; break; - } - *subexpression='\0'; - if (strlen(expression) > 6) - (void) CopyMagickString(subexpression,expression+6, - MagickPathExtent); - if (strlen(subexpression) > 1) - subexpression[strlen(subexpression)-1]='\0'; - if (fx_info->file != (FILE *) NULL) - (void) FormatLocaleFile(fx_info->file,"%s[%.20g,%.20g].%s: " - "%s=%.*g\n",fx_info->images->filename,(double) x,(double) y,type, - subexpression,GetMagickPrecision(),alpha); - FxReturn(0.0); - } - if (LocaleNCompare(expression,"drc",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn((alpha/(*beta*(alpha-1.0)+1.0))); - } - break; - } - case 'E': - case 'e': - { - if (LocaleCompare(expression,"epsilon") == 0) - FxReturn(MagickEpsilon); -#if defined(MAGICKCORE_HAVE_ERF) - if (LocaleNCompare(expression,"erf",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(erf(alpha)); - } -#endif - if (LocaleNCompare(expression,"exp",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(exp(alpha)); - } - if (LocaleCompare(expression,"e") == 0) - FxReturn(2.7182818284590452354); - break; - } - case 'F': - case 'f': - { - if (LocaleNCompare(expression,"floor",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - FxReturn(floor(alpha)); - } - break; - } - case 'G': - case 'g': - { - if (LocaleNCompare(expression,"gauss",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - gamma=exp((-alpha*alpha/2.0))/sqrt(2.0*MagickPI); - FxReturn(gamma); - } - if (LocaleNCompare(expression,"gcd",3) == 0) - { - MagickOffsetType - gcd; - - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - gcd=FxGCD((MagickOffsetType) (alpha+0.5),(MagickOffsetType) (*beta+ - 0.5)); - FxReturn((double) gcd); - } - if (LocaleCompare(expression,"g") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'H': - case 'h': - { - if (LocaleCompare(expression,"h") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - if (LocaleCompare(expression,"hue") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - if (LocaleNCompare(expression,"hypot",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - FxReturn(hypot(alpha,*beta)); - } - break; - } - case 'K': - case 'k': - { - if (LocaleCompare(expression,"k") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'I': - case 'i': - { - if (LocaleCompare(expression,"intensity") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - if (LocaleNCompare(expression,"int",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(floor(alpha)); - } - if (LocaleNCompare(expression,"isnan",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - FxReturn((double) !!IsNaN(alpha)); - } - if (LocaleCompare(expression,"i") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'J': - case 'j': - { - if (LocaleCompare(expression,"j") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); -#if defined(MAGICKCORE_HAVE_J0) - if (LocaleNCompare(expression,"j0",2) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+2, - depth+1,beta,exception); - FxReturn(j0(alpha)); - } -#endif -#if defined(MAGICKCORE_HAVE_J1) - if (LocaleNCompare(expression,"j1",2) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+2, - depth+1,beta,exception); - FxReturn(j1(alpha)); - } -#endif -#if defined(MAGICKCORE_HAVE_J1) - if (LocaleNCompare(expression,"jinc",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - if (alpha == 0.0) - FxReturn(1.0); - gamma=(2.0*j1((MagickPI*alpha))/(MagickPI*alpha)); - FxReturn(gamma); - } -#endif - break; - } - case 'L': - case 'l': - { - if (LocaleNCompare(expression,"ln",2) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+2, - depth+1,beta,exception); - FxReturn(log(alpha)); - } - if (LocaleNCompare(expression,"logtwo",6) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+6, - depth+1,beta,exception); - FxReturn(log10(alpha)/log10(2.0)); - } - if (LocaleNCompare(expression,"log",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(log10(alpha)); - } - if (LocaleCompare(expression,"lightness") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'M': - case 'm': - { - if (LocaleCompare(expression,"MaxRGB") == 0) - FxReturn(QuantumRange); - if (LocaleNCompare(expression,"maxima",6) == 0) - break; - if (LocaleNCompare(expression,"max",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(alpha > *beta ? alpha : *beta); - } - if (LocaleNCompare(expression,"minima",6) == 0) - break; - if (LocaleNCompare(expression,"min",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(alpha < *beta ? alpha : *beta); - } - if (LocaleNCompare(expression,"mod",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - gamma=alpha-floor((alpha*PerceptibleReciprocal(*beta)))*(*beta); - FxReturn(gamma); - } - if (LocaleCompare(expression,"m") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'N': - case 'n': - { - if (LocaleNCompare(expression,"not",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn((double) (alpha < MagickEpsilon)); - } - if (LocaleCompare(expression,"n") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'O': - case 'o': - { - if (LocaleCompare(expression,"Opaque") == 0) - FxReturn(1.0); - if (LocaleCompare(expression,"o") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'P': - case 'p': - { - if (LocaleCompare(expression,"phi") == 0) - FxReturn(MagickPHI); - if (LocaleCompare(expression,"pi") == 0) - FxReturn(MagickPI); - if (LocaleNCompare(expression,"pow",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(pow(alpha,*beta)); - } - if (LocaleCompare(expression,"p") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'Q': - case 'q': - { - if (LocaleCompare(expression,"QuantumRange") == 0) - FxReturn(QuantumRange); - if (LocaleCompare(expression,"QuantumScale") == 0) - FxReturn(QuantumScale); - break; - } - case 'R': - case 'r': - { - if (LocaleNCompare(expression,"rand",4) == 0) - { -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_FxEvaluateSubexpression) -#endif - alpha=GetPseudoRandomValue(fx_info->random_info); - FxReturn(alpha); - } - if (LocaleNCompare(expression,"round",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - FxReturn(floor(alpha+0.5)); - } - if (LocaleCompare(expression,"r") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'S': - case 's': - { - if (LocaleCompare(expression,"saturation") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - if (LocaleNCompare(expression,"sign",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(alpha < 0.0 ? -1.0 : 1.0); - } - if (LocaleNCompare(expression,"sinc",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - if (alpha == 0) - FxReturn(1.0); - gamma=sin((MagickPI*alpha))/(MagickPI*alpha); - FxReturn(gamma); - } - if (LocaleNCompare(expression,"sinh",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(sinh(alpha)); - } - if (LocaleNCompare(expression,"sin",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(sin(alpha)); - } - if (LocaleNCompare(expression,"sqrt",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(sqrt(alpha)); - } - if (LocaleNCompare(expression,"squish",6) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+6, - depth+1,beta,exception); - FxReturn((1.0/(1.0+exp(-alpha)))); - } - if (LocaleCompare(expression,"s") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'T': - case 't': - { - if (LocaleNCompare(expression,"tanh",4) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4, - depth+1,beta,exception); - FxReturn(tanh(alpha)); - } - if (LocaleNCompare(expression,"tan",3) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3, - depth+1,beta,exception); - FxReturn(tan(alpha)); - } - if (LocaleCompare(expression,"Transparent") == 0) - FxReturn(0.0); - if (LocaleNCompare(expression,"trunc",5) == 0) - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - if (alpha >= 0.0) - FxReturn(floor(alpha)); - FxReturn(ceil(alpha)); - } - if (LocaleCompare(expression,"t") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'U': - case 'u': - { - if (LocaleCompare(expression,"u") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'V': - case 'v': - { - if (LocaleCompare(expression,"v") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'W': - case 'w': - { - if (LocaleNCompare(expression,"while",5) == 0) - { - do - { - alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5, - depth+1,beta,exception); - } while (fabs(alpha) >= MagickEpsilon); - FxReturn(*beta); - } - if (LocaleCompare(expression,"w") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'Y': - case 'y': - { - if (LocaleCompare(expression,"y") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - case 'Z': - case 'z': - { - if (LocaleCompare(expression,"z") == 0) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - break; - } - default: - break; - } - subexpression=DestroyString(subexpression); - q=(char *) expression; - alpha=InterpretSiPrefixValue(expression,&q); - if (q == expression) - FxReturn(FxGetSymbol(fx_info,channel,x,y,expression,depth+1,exception)); - FxReturn(alpha); -} - -MagickPrivate MagickBooleanType FxEvaluateExpression(FxInfo *fx_info, - double *alpha,ExceptionInfo *exception) -{ - MagickBooleanType - status; - - status=FxEvaluateChannelExpression(fx_info,GrayPixelChannel,0,0,alpha, - exception); - return(status); -} - -MagickExport MagickBooleanType FxPreprocessExpression(FxInfo *fx_info, - double *alpha,ExceptionInfo *exception) -{ - FILE - *file; - - MagickBooleanType - status; - - file=fx_info->file; - fx_info->file=(FILE *) NULL; - status=FxEvaluateChannelExpression(fx_info,GrayPixelChannel,0,0,alpha, - exception); - fx_info->file=file; - return(status); -} - -MagickPrivate MagickBooleanType FxEvaluateChannelExpression(FxInfo *fx_info, - const PixelChannel channel,const ssize_t x,const ssize_t y, - double *alpha,ExceptionInfo *exception) -{ - double - beta; - - beta=0.0; - *alpha=FxEvaluateSubexpression(fx_info,channel,x,y,fx_info->expression,0, - &beta,exception); - return(exception->severity == OptionError ? MagickFalse : MagickTrue); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% F x I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% FxImage() applies a mathematical expression to the specified image. -% -% The format of the FxImage method is: -% -% Image *FxImage(const Image *image,const char *expression, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o expression: A mathematical expression. -% -% o exception: return any errors or warnings in this structure. -% -*/ - -static FxInfo **DestroyFxThreadSet(FxInfo **fx_info) -{ - register ssize_t - i; - - assert(fx_info != (FxInfo **) NULL); - for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++) - if (fx_info[i] != (FxInfo *) NULL) - fx_info[i]=DestroyFxInfo(fx_info[i]); - fx_info=(FxInfo **) RelinquishMagickMemory(fx_info); - return(fx_info); -} - -static FxInfo **AcquireFxThreadSet(const Image *image,const char *expression, - ExceptionInfo *exception) -{ - char - *fx_expression; - - FxInfo - **fx_info; - - double - alpha; - - register ssize_t - i; - - size_t - number_threads; - - number_threads=(size_t) GetMagickResourceLimit(ThreadResource); - fx_info=(FxInfo **) AcquireQuantumMemory(number_threads,sizeof(*fx_info)); - if (fx_info == (FxInfo **) NULL) - { - (void) ThrowMagickException(exception,GetMagickModule(), - ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename); - return((FxInfo **) NULL); - } - (void) memset(fx_info,0,number_threads*sizeof(*fx_info)); - if (*expression != '@') - fx_expression=ConstantString(expression); - else - fx_expression=FileToString(expression+1,~0UL,exception); - for (i=0; i < (ssize_t) number_threads; i++) - { - MagickBooleanType - status; - - fx_info[i]=AcquireFxInfo(image,fx_expression,exception); - if (fx_info[i] == (FxInfo *) NULL) - break; - status=FxPreprocessExpression(fx_info[i],&alpha,exception); - if (status == MagickFalse) - break; - } - fx_expression=DestroyString(fx_expression); - if (i < (ssize_t) number_threads) - fx_info=DestroyFxThreadSet(fx_info); - return(fx_info); -} - -MagickExport Image *FxImage(const Image *image,const char *expression, - ExceptionInfo *exception) -{ -#define FxImageTag "Fx/Image" - - CacheView - *fx_view, - *image_view; - - FxInfo - **magick_restrict fx_info; - - Image - *fx_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - ssize_t - y; - - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - fx_info=AcquireFxThreadSet(image,expression,exception); - if (fx_info == (FxInfo **) NULL) - return((Image *) NULL); - fx_image=CloneImage(image,0,0,MagickTrue,exception); - if (fx_image == (Image *) NULL) - { - fx_info=DestroyFxThreadSet(fx_info); - return((Image *) NULL); - } - if (SetImageStorageClass(fx_image,DirectClass,exception) == MagickFalse) - { - fx_info=DestroyFxThreadSet(fx_info); - fx_image=DestroyImage(fx_image); - return((Image *) NULL); - } - /* - Fx image. - */ - status=MagickTrue; - progress=0; - image_view=AcquireVirtualCacheView(image,exception); - fx_view=AcquireAuthenticCacheView(fx_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(image,fx_image,fx_image->rows,1) -#endif - for (y=0; y < (ssize_t) fx_image->rows; y++) - { - const int - id = GetOpenMPThreadId(); - - register const Quantum - *magick_restrict p; - - register Quantum - *magick_restrict q; - - register ssize_t - x; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); - q=QueueCacheViewAuthenticPixels(fx_view,0,y,fx_image->columns,1,exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) fx_image->columns; x++) - { - register ssize_t - i; - - for (i=0; i < (ssize_t) GetPixelChannels(image); i++) - { - double - alpha; - - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - PixelTrait fx_traits=GetPixelChannelTraits(fx_image,channel); - if ((traits == UndefinedPixelTrait) || - (fx_traits == UndefinedPixelTrait)) - continue; - if ((fx_traits & CopyPixelTrait) != 0) - { - SetPixelChannel(fx_image,channel,p[i],q); - continue; - } - alpha=0.0; - (void) FxEvaluateChannelExpression(fx_info[id],channel,x,y,&alpha, - exception); - q[i]=ClampToQuantum(QuantumRange*alpha); - } - p+=GetPixelChannels(image); - q+=GetPixelChannels(fx_image); - } - if (SyncCacheViewAuthenticPixels(fx_view,exception) == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_FxImage) -#endif - proceed=SetImageProgress(image,FxImageTag,progress++,image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - fx_view=DestroyCacheView(fx_view); - image_view=DestroyCacheView(image_view); - fx_info=DestroyFxThreadSet(fx_info); - if (status == MagickFalse) - fx_image=DestroyImage(fx_image); - return(fx_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% I m p l o d e I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% ImplodeImage() creates a new image that is a copy of an existing -% one with the image pixels "implode" by the specified percentage. It -% allocates the memory necessary for the new Image structure and returns a -% pointer to the new image. -% -% The format of the ImplodeImage method is: -% -% Image *ImplodeImage(const Image *image,const double amount, -% const PixelInterpolateMethod method,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o implode_image: Method ImplodeImage returns a pointer to the image -% after it is implode. A null image is returned if there is a memory -% shortage. -% -% o image: the image. -% -% o amount: Define the extent of the implosion. -% -% o method: the pixel interpolation method. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *ImplodeImage(const Image *image,const double amount, - const PixelInterpolateMethod method,ExceptionInfo *exception) -{ -#define ImplodeImageTag "Implode/Image" - - CacheView - *canvas_view, - *implode_view, - *interpolate_view; - - Image - *canvas, - *implode_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - double - radius; - - PointInfo - center, - scale; - - ssize_t - y; - - /* - Initialize implode image attributes. - */ - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - canvas=CloneImage(image,0,0,MagickTrue,exception); - if (canvas == (Image *) NULL) - return((Image *) NULL); - if ((canvas->alpha_trait == UndefinedPixelTrait) && - (canvas->background_color.alpha != OpaqueAlpha)) - (void) SetImageAlphaChannel(canvas,OpaqueAlphaChannel,exception); - implode_image=CloneImage(canvas,canvas->columns,canvas->rows,MagickTrue, - exception); - if (implode_image == (Image *) NULL) - { - canvas=DestroyImage(canvas); - return((Image *) NULL); - } - if (SetImageStorageClass(implode_image,DirectClass,exception) == MagickFalse) - { - canvas=DestroyImage(canvas); - implode_image=DestroyImage(implode_image); - return((Image *) NULL); - } - /* - Compute scaling factor. - */ - scale.x=1.0; - scale.y=1.0; - center.x=0.5*canvas->columns; - center.y=0.5*canvas->rows; - radius=center.x; - if (canvas->columns > canvas->rows) - scale.y=(double) canvas->columns/(double) canvas->rows; - else - if (canvas->columns < canvas->rows) - { - scale.x=(double) canvas->rows/(double) canvas->columns; - radius=center.y; - } - /* - Implode image. - */ - status=MagickTrue; - progress=0; - canvas_view=AcquireVirtualCacheView(canvas,exception); - interpolate_view=AcquireVirtualCacheView(canvas,exception); - implode_view=AcquireAuthenticCacheView(implode_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(canvas,implode_image,canvas->rows,1) -#endif - for (y=0; y < (ssize_t) canvas->rows; y++) - { - double - distance; - - PointInfo - delta; - - register const Quantum - *magick_restrict p; - - register ssize_t - x; - - register Quantum - *magick_restrict q; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(canvas_view,0,y,canvas->columns,1,exception); - q=QueueCacheViewAuthenticPixels(implode_view,0,y,implode_image->columns,1, - exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - delta.y=scale.y*(double) (y-center.y); - for (x=0; x < (ssize_t) canvas->columns; x++) - { - register ssize_t - i; - - /* - Determine if the pixel is within an ellipse. - */ - delta.x=scale.x*(double) (x-center.x); - distance=delta.x*delta.x+delta.y*delta.y; - if (distance >= (radius*radius)) - for (i=0; i < (ssize_t) GetPixelChannels(canvas); i++) - { - PixelChannel channel = GetPixelChannelChannel(canvas,i); - PixelTrait traits = GetPixelChannelTraits(canvas,channel); - PixelTrait implode_traits = GetPixelChannelTraits(implode_image, - channel); - if ((traits == UndefinedPixelTrait) || - (implode_traits == UndefinedPixelTrait)) - continue; - SetPixelChannel(implode_image,channel,p[i],q); - } - else - { - double - factor; - - /* - Implode the pixel. - */ - factor=1.0; - if (distance > 0.0) - factor=pow(sin(MagickPI*sqrt((double) distance)/radius/2),-amount); - status=InterpolatePixelChannels(canvas,interpolate_view,implode_image, - method,(double) (factor*delta.x/scale.x+center.x),(double) (factor* - delta.y/scale.y+center.y),q,exception); - if (status == MagickFalse) - break; - } - p+=GetPixelChannels(canvas); - q+=GetPixelChannels(implode_image); - } - if (SyncCacheViewAuthenticPixels(implode_view,exception) == MagickFalse) - status=MagickFalse; - if (canvas->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_ImplodeImage) -#endif - proceed=SetImageProgress(canvas,ImplodeImageTag,progress++, - canvas->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - implode_view=DestroyCacheView(implode_view); - interpolate_view=DestroyCacheView(interpolate_view); - canvas_view=DestroyCacheView(canvas_view); - canvas=DestroyImage(canvas); - if (status == MagickFalse) - implode_image=DestroyImage(implode_image); - return(implode_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% M o r p h I m a g e s % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% The MorphImages() method requires a minimum of two images. The first -% image is transformed into the second by a number of intervening images -% as specified by frames. -% -% The format of the MorphImage method is: -% -% Image *MorphImages(const Image *image,const size_t number_frames, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o number_frames: Define the number of in-between image to generate. -% The more in-between frames, the smoother the morph. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *MorphImages(const Image *image,const size_t number_frames, - ExceptionInfo *exception) -{ -#define MorphImageTag "Morph/Image" - - double - alpha, - beta; - - Image - *morph_image, - *morph_images; - - MagickBooleanType - status; - - MagickOffsetType - scene; - - register const Image - *next; - - register ssize_t - n; - - ssize_t - y; - - /* - Clone first frame in sequence. - */ - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - morph_images=CloneImage(image,0,0,MagickTrue,exception); - if (morph_images == (Image *) NULL) - return((Image *) NULL); - if (GetNextImageInList(image) == (Image *) NULL) - { - /* - Morph single image. - */ - for (n=1; n < (ssize_t) number_frames; n++) - { - morph_image=CloneImage(image,0,0,MagickTrue,exception); - if (morph_image == (Image *) NULL) - { - morph_images=DestroyImageList(morph_images); - return((Image *) NULL); - } - AppendImageToList(&morph_images,morph_image); - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - - proceed=SetImageProgress(image,MorphImageTag,(MagickOffsetType) n, - number_frames); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - return(GetFirstImageInList(morph_images)); - } - /* - Morph image sequence. - */ - status=MagickTrue; - scene=0; - next=image; - for ( ; GetNextImageInList(next) != (Image *) NULL; next=GetNextImageInList(next)) - { - for (n=0; n < (ssize_t) number_frames; n++) - { - CacheView - *image_view, - *morph_view; - - beta=(double) (n+1.0)/(double) (number_frames+1.0); - alpha=1.0-beta; - morph_image=ResizeImage(next,(size_t) (alpha*next->columns+beta* - GetNextImageInList(next)->columns+0.5),(size_t) (alpha*next->rows+beta* - GetNextImageInList(next)->rows+0.5),next->filter,exception); - if (morph_image == (Image *) NULL) - { - morph_images=DestroyImageList(morph_images); - return((Image *) NULL); - } - status=SetImageStorageClass(morph_image,DirectClass,exception); - if (status == MagickFalse) - { - morph_image=DestroyImage(morph_image); - return((Image *) NULL); - } - AppendImageToList(&morph_images,morph_image); - morph_images=GetLastImageInList(morph_images); - morph_image=ResizeImage(GetNextImageInList(next),morph_images->columns, - morph_images->rows,GetNextImageInList(next)->filter,exception); - if (morph_image == (Image *) NULL) - { - morph_images=DestroyImageList(morph_images); - return((Image *) NULL); - } - image_view=AcquireVirtualCacheView(morph_image,exception); - morph_view=AcquireAuthenticCacheView(morph_images,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(status) \ - magick_number_threads(morph_image,morph_image,morph_image->rows,1) -#endif - for (y=0; y < (ssize_t) morph_images->rows; y++) - { - MagickBooleanType - sync; - - register const Quantum - *magick_restrict p; - - register ssize_t - x; - - register Quantum - *magick_restrict q; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(image_view,0,y,morph_image->columns,1, - exception); - q=GetCacheViewAuthenticPixels(morph_view,0,y,morph_images->columns,1, - exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) morph_images->columns; x++) - { - register ssize_t - i; - - for (i=0; i < (ssize_t) GetPixelChannels(morph_image); i++) - { - PixelChannel channel = GetPixelChannelChannel(morph_image,i); - PixelTrait traits = GetPixelChannelTraits(morph_image,channel); - PixelTrait morph_traits=GetPixelChannelTraits(morph_images,channel); - if ((traits == UndefinedPixelTrait) || - (morph_traits == UndefinedPixelTrait)) - continue; - if ((morph_traits & CopyPixelTrait) != 0) - { - SetPixelChannel(morph_image,channel,p[i],q); - continue; - } - SetPixelChannel(morph_image,channel,ClampToQuantum(alpha* - GetPixelChannel(morph_images,channel,q)+beta*p[i]),q); - } - p+=GetPixelChannels(morph_image); - q+=GetPixelChannels(morph_images); - } - sync=SyncCacheViewAuthenticPixels(morph_view,exception); - if (sync == MagickFalse) - status=MagickFalse; - } - morph_view=DestroyCacheView(morph_view); - image_view=DestroyCacheView(image_view); - morph_image=DestroyImage(morph_image); - } - if (n < (ssize_t) number_frames) - break; - /* - Clone last frame in sequence. - */ - morph_image=CloneImage(GetNextImageInList(next),0,0,MagickTrue,exception); - if (morph_image == (Image *) NULL) - { - morph_images=DestroyImageList(morph_images); - return((Image *) NULL); - } - AppendImageToList(&morph_images,morph_image); - morph_images=GetLastImageInList(morph_images); - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_MorphImages) -#endif - proceed=SetImageProgress(image,MorphImageTag,scene, - GetImageListLength(image)); - if (proceed == MagickFalse) - status=MagickFalse; - } - scene++; - } - if (GetNextImageInList(next) != (Image *) NULL) - { - morph_images=DestroyImageList(morph_images); - return((Image *) NULL); - } - return(GetFirstImageInList(morph_images)); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% P l a s m a I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% PlasmaImage() initializes an image with plasma fractal values. The image -% must be initialized with a base color and the random number generator -% seeded before this method is called. -% -% The format of the PlasmaImage method is: -% -% MagickBooleanType PlasmaImage(Image *image,const SegmentInfo *segment, -% size_t attenuate,size_t depth,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o segment: Define the region to apply plasma fractals values. -% -% o attenuate: Define the plasma attenuation factor. -% -% o depth: Limit the plasma recursion depth. -% -% o exception: return any errors or warnings in this structure. -% -*/ - -static inline Quantum PlasmaPixel(RandomInfo *random_info, - const double pixel,const double noise) -{ - Quantum - plasma; - - plasma=ClampToQuantum(pixel+noise*GetPseudoRandomValue(random_info)- - noise/2.0); - if (plasma <= 0) - return((Quantum) 0); - if (plasma >= QuantumRange) - return(QuantumRange); - return(plasma); -} - -static MagickBooleanType PlasmaImageProxy(Image *image,CacheView *image_view, - CacheView *u_view,CacheView *v_view,RandomInfo *random_info, - const SegmentInfo *segment,size_t attenuate,size_t depth, - ExceptionInfo *exception) -{ - double - plasma; - - register const Quantum - *magick_restrict u, - *magick_restrict v; - - register Quantum - *magick_restrict q; - - register ssize_t - i; - - ssize_t - x, - x_mid, - y, - y_mid; - - if ((fabs(segment->x2-segment->x1) <= MagickEpsilon) && - (fabs(segment->y2-segment->y1) <= MagickEpsilon)) - return(MagickTrue); - if (depth != 0) - { - MagickBooleanType - status; - - SegmentInfo - local_info; - - /* - Divide the area into quadrants and recurse. - */ - depth--; - attenuate++; - x_mid=(ssize_t) ceil((segment->x1+segment->x2)/2-0.5); - y_mid=(ssize_t) ceil((segment->y1+segment->y2)/2-0.5); - local_info=(*segment); - local_info.x2=(double) x_mid; - local_info.y2=(double) y_mid; - (void) PlasmaImageProxy(image,image_view,u_view,v_view,random_info, - &local_info,attenuate,depth,exception); - local_info=(*segment); - local_info.y1=(double) y_mid; - local_info.x2=(double) x_mid; - (void) PlasmaImageProxy(image,image_view,u_view,v_view,random_info, - &local_info,attenuate,depth,exception); - local_info=(*segment); - local_info.x1=(double) x_mid; - local_info.y2=(double) y_mid; - (void) PlasmaImageProxy(image,image_view,u_view,v_view,random_info, - &local_info,attenuate,depth,exception); - local_info=(*segment); - local_info.x1=(double) x_mid; - local_info.y1=(double) y_mid; - status=PlasmaImageProxy(image,image_view,u_view,v_view,random_info, - &local_info,attenuate,depth,exception); - return(status); - } - x_mid=(ssize_t) ceil((segment->x1+segment->x2)/2-0.5); - y_mid=(ssize_t) ceil((segment->y1+segment->y2)/2-0.5); - if ((fabs(segment->x1-x_mid) < MagickEpsilon) && - (fabs(segment->x2-x_mid) < MagickEpsilon) && - (fabs(segment->y1-y_mid) < MagickEpsilon) && - (fabs(segment->y2-y_mid) < MagickEpsilon)) - return(MagickFalse); - /* - Average pixels and apply plasma. - */ - plasma=(double) QuantumRange/(2.0*attenuate); - if ((fabs(segment->x1-x_mid) > MagickEpsilon) || - (fabs(segment->x2-x_mid) > MagickEpsilon)) - { - /* - Left pixel. - */ - x=(ssize_t) ceil(segment->x1-0.5); - u=GetCacheViewVirtualPixels(u_view,x,(ssize_t) ceil(segment->y1-0.5),1,1, - exception); - v=GetCacheViewVirtualPixels(v_view,x,(ssize_t) ceil(segment->y2-0.5),1,1, - exception); - q=QueueCacheViewAuthenticPixels(image_view,x,y_mid,1,1,exception); - if ((u == (const Quantum *) NULL) || (v == (const Quantum *) NULL) || - (q == (Quantum *) NULL)) - return(MagickTrue); - for (i=0; i < (ssize_t) GetPixelChannels(image); i++) - { - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - if (traits == UndefinedPixelTrait) - continue; - q[i]=PlasmaPixel(random_info,(u[i]+v[i])/2.0,plasma); - } - (void) SyncCacheViewAuthenticPixels(image_view,exception); - if (fabs(segment->x1-segment->x2) > MagickEpsilon) - { - /* - Right pixel. - */ - x=(ssize_t) ceil(segment->x2-0.5); - u=GetCacheViewVirtualPixels(u_view,x,(ssize_t) ceil(segment->y1-0.5), - 1,1,exception); - v=GetCacheViewVirtualPixels(v_view,x,(ssize_t) ceil(segment->y2-0.5), - 1,1,exception); - q=QueueCacheViewAuthenticPixels(image_view,x,y_mid,1,1,exception); - if ((u == (const Quantum *) NULL) || (v == (const Quantum *) NULL) || - (q == (Quantum *) NULL)) - return(MagickTrue); - for (i=0; i < (ssize_t) GetPixelChannels(image); i++) - { - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - if (traits == UndefinedPixelTrait) - continue; - q[i]=PlasmaPixel(random_info,(u[i]+v[i])/2.0,plasma); - } - (void) SyncCacheViewAuthenticPixels(image_view,exception); - } - } - if ((fabs(segment->y1-y_mid) > MagickEpsilon) || - (fabs(segment->y2-y_mid) > MagickEpsilon)) - { - if ((fabs(segment->x1-x_mid) > MagickEpsilon) || - (fabs(segment->y2-y_mid) > MagickEpsilon)) - { - /* - Bottom pixel. - */ - y=(ssize_t) ceil(segment->y2-0.5); - u=GetCacheViewVirtualPixels(u_view,(ssize_t) ceil(segment->x1-0.5),y, - 1,1,exception); - v=GetCacheViewVirtualPixels(v_view,(ssize_t) ceil(segment->x2-0.5),y, - 1,1,exception); - q=QueueCacheViewAuthenticPixels(image_view,x_mid,y,1,1,exception); - if ((u == (const Quantum *) NULL) || (v == (const Quantum *) NULL) || - (q == (Quantum *) NULL)) - return(MagickTrue); - for (i=0; i < (ssize_t) GetPixelChannels(image); i++) - { - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - if (traits == UndefinedPixelTrait) - continue; - q[i]=PlasmaPixel(random_info,(u[i]+v[i])/2.0,plasma); - } - (void) SyncCacheViewAuthenticPixels(image_view,exception); - } - if (fabs(segment->y1-segment->y2) > MagickEpsilon) - { - /* - Top pixel. - */ - y=(ssize_t) ceil(segment->y1-0.5); - u=GetCacheViewVirtualPixels(u_view,(ssize_t) ceil(segment->x1-0.5),y, - 1,1,exception); - v=GetCacheViewVirtualPixels(v_view,(ssize_t) ceil(segment->x2-0.5),y, - 1,1,exception); - q=QueueCacheViewAuthenticPixels(image_view,x_mid,y,1,1,exception); - if ((u == (const Quantum *) NULL) || (v == (const Quantum *) NULL) || - (q == (Quantum *) NULL)) - return(MagickTrue); - for (i=0; i < (ssize_t) GetPixelChannels(image); i++) - { - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - if (traits == UndefinedPixelTrait) - continue; - q[i]=PlasmaPixel(random_info,(u[i]+v[i])/2.0,plasma); - } - (void) SyncCacheViewAuthenticPixels(image_view,exception); - } - } - if ((fabs(segment->x1-segment->x2) > MagickEpsilon) || - (fabs(segment->y1-segment->y2) > MagickEpsilon)) - { - /* - Middle pixel. - */ - x=(ssize_t) ceil(segment->x1-0.5); - y=(ssize_t) ceil(segment->y1-0.5); - u=GetCacheViewVirtualPixels(u_view,x,y,1,1,exception); - x=(ssize_t) ceil(segment->x2-0.5); - y=(ssize_t) ceil(segment->y2-0.5); - v=GetCacheViewVirtualPixels(v_view,x,y,1,1,exception); - q=QueueCacheViewAuthenticPixels(image_view,x_mid,y_mid,1,1,exception); - if ((u == (const Quantum *) NULL) || (v == (const Quantum *) NULL) || - (q == (Quantum *) NULL)) - return(MagickTrue); - for (i=0; i < (ssize_t) GetPixelChannels(image); i++) - { - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - if (traits == UndefinedPixelTrait) - continue; - q[i]=PlasmaPixel(random_info,(u[i]+v[i])/2.0,plasma); - } - (void) SyncCacheViewAuthenticPixels(image_view,exception); - } - if ((fabs(segment->x2-segment->x1) < 3.0) && - (fabs(segment->y2-segment->y1) < 3.0)) - return(MagickTrue); - return(MagickFalse); -} - -MagickExport MagickBooleanType PlasmaImage(Image *image, - const SegmentInfo *segment,size_t attenuate,size_t depth, - ExceptionInfo *exception) -{ - CacheView - *image_view, - *u_view, - *v_view; - - MagickBooleanType - status; - - RandomInfo - *random_info; - - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); - if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) - return(MagickFalse); - image_view=AcquireAuthenticCacheView(image,exception); - u_view=AcquireVirtualCacheView(image,exception); - v_view=AcquireVirtualCacheView(image,exception); - random_info=AcquireRandomInfo(); - status=PlasmaImageProxy(image,image_view,u_view,v_view,random_info,segment, - attenuate,depth,exception); - random_info=DestroyRandomInfo(random_info); - v_view=DestroyCacheView(v_view); - u_view=DestroyCacheView(u_view); - image_view=DestroyCacheView(image_view); - return(status); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% P o l a r o i d I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% PolaroidImage() simulates a Polaroid picture. -% -% The format of the PolaroidImage method is: -% -% Image *PolaroidImage(const Image *image,const DrawInfo *draw_info, -% const char *caption,const double angle, -% const PixelInterpolateMethod method,ExceptionInfo exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o draw_info: the draw info. -% -% o caption: the Polaroid caption. -% -% o angle: Apply the effect along this angle. -% -% o method: the pixel interpolation method. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *PolaroidImage(const Image *image,const DrawInfo *draw_info, - const char *caption,const double angle,const PixelInterpolateMethod method, - ExceptionInfo *exception) -{ - Image - *bend_image, - *caption_image, - *flop_image, - *picture_image, - *polaroid_image, - *rotate_image, - *trim_image; - - size_t - height; - - ssize_t - quantum; - - /* - Simulate a Polaroid picture. - */ - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - quantum=(ssize_t) MagickMax(MagickMax((double) image->columns,(double) - image->rows)/25.0,10.0); - height=image->rows+2*quantum; - caption_image=(Image *) NULL; - if (caption != (const char *) NULL) - { - char - geometry[MagickPathExtent], - *text; - - DrawInfo - *annotate_info; - - ImageInfo - *image_info; - - MagickBooleanType - status; - - ssize_t - count; - - TypeMetric - metrics; - - /* - Generate caption image. - */ - caption_image=CloneImage(image,image->columns,1,MagickTrue,exception); - if (caption_image == (Image *) NULL) - return((Image *) NULL); - image_info=AcquireImageInfo(); - annotate_info=CloneDrawInfo((const ImageInfo *) NULL,draw_info); - text=InterpretImageProperties(image_info,(Image *) image,caption, - exception); - image_info=DestroyImageInfo(image_info); - (void) CloneString(&annotate_info->text,text); - count=FormatMagickCaption(caption_image,annotate_info,MagickTrue,&metrics, - &text,exception); - status=SetImageExtent(caption_image,image->columns,(size_t) ((count+1)* - (metrics.ascent-metrics.descent)+0.5),exception); - if (status == MagickFalse) - caption_image=DestroyImage(caption_image); - else - { - caption_image->background_color=image->border_color; - (void) SetImageBackgroundColor(caption_image,exception); - (void) CloneString(&annotate_info->text,text); - (void) FormatLocaleString(geometry,MagickPathExtent,"+0+%.20g", - metrics.ascent); - if (annotate_info->gravity == UndefinedGravity) - (void) CloneString(&annotate_info->geometry,AcquireString( - geometry)); - (void) AnnotateImage(caption_image,annotate_info,exception); - height+=caption_image->rows; - } - annotate_info=DestroyDrawInfo(annotate_info); - text=DestroyString(text); - } - picture_image=CloneImage(image,image->columns+2*quantum,height,MagickTrue, - exception); - if (picture_image == (Image *) NULL) - { - if (caption_image != (Image *) NULL) - caption_image=DestroyImage(caption_image); - return((Image *) NULL); - } - picture_image->background_color=image->border_color; - (void) SetImageBackgroundColor(picture_image,exception); - (void) CompositeImage(picture_image,image,OverCompositeOp,MagickTrue,quantum, - quantum,exception); - if (caption_image != (Image *) NULL) - { - (void) CompositeImage(picture_image,caption_image,OverCompositeOp, - MagickTrue,quantum,(ssize_t) (image->rows+3*quantum/2),exception); - caption_image=DestroyImage(caption_image); - } - (void) QueryColorCompliance("none",AllCompliance, - &picture_image->background_color,exception); - (void) SetImageAlphaChannel(picture_image,OpaqueAlphaChannel,exception); - rotate_image=RotateImage(picture_image,90.0,exception); - picture_image=DestroyImage(picture_image); - if (rotate_image == (Image *) NULL) - return((Image *) NULL); - picture_image=rotate_image; - bend_image=WaveImage(picture_image,0.01*picture_image->rows,2.0* - picture_image->columns,method,exception); - picture_image=DestroyImage(picture_image); - if (bend_image == (Image *) NULL) - return((Image *) NULL); - picture_image=bend_image; - rotate_image=RotateImage(picture_image,-90.0,exception); - picture_image=DestroyImage(picture_image); - if (rotate_image == (Image *) NULL) - return((Image *) NULL); - picture_image=rotate_image; - picture_image->background_color=image->background_color; - polaroid_image=ShadowImage(picture_image,80.0,2.0,quantum/3,quantum/3, - exception); - if (polaroid_image == (Image *) NULL) - { - picture_image=DestroyImage(picture_image); - return(picture_image); - } - flop_image=FlopImage(polaroid_image,exception); - polaroid_image=DestroyImage(polaroid_image); - if (flop_image == (Image *) NULL) - { - picture_image=DestroyImage(picture_image); - return(picture_image); - } - polaroid_image=flop_image; - (void) CompositeImage(polaroid_image,picture_image,OverCompositeOp, - MagickTrue,(ssize_t) (-0.01*picture_image->columns/2.0),0L,exception); - picture_image=DestroyImage(picture_image); - (void) QueryColorCompliance("none",AllCompliance, - &polaroid_image->background_color,exception); - rotate_image=RotateImage(polaroid_image,angle,exception); - polaroid_image=DestroyImage(polaroid_image); - if (rotate_image == (Image *) NULL) - return((Image *) NULL); - polaroid_image=rotate_image; - trim_image=TrimImage(polaroid_image,exception); - polaroid_image=DestroyImage(polaroid_image); - if (trim_image == (Image *) NULL) - return((Image *) NULL); - polaroid_image=trim_image; - return(polaroid_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% S e p i a T o n e I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% MagickSepiaToneImage() applies a special effect to the image, similar to the -% effect achieved in a photo darkroom by sepia toning. Threshold ranges from -% 0 to QuantumRange and is a measure of the extent of the sepia toning. A -% threshold of 80% is a good starting point for a reasonable tone. -% -% The format of the SepiaToneImage method is: -% -% Image *SepiaToneImage(const Image *image,const double threshold, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o threshold: the tone threshold. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *SepiaToneImage(const Image *image,const double threshold, - ExceptionInfo *exception) -{ -#define SepiaToneImageTag "SepiaTone/Image" - - CacheView - *image_view, - *sepia_view; - - Image - *sepia_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - ssize_t - y; - - /* - Initialize sepia-toned image attributes. - */ - assert(image != (const Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - sepia_image=CloneImage(image,0,0,MagickTrue,exception); - if (sepia_image == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(sepia_image,DirectClass,exception) == MagickFalse) - { - sepia_image=DestroyImage(sepia_image); - return((Image *) NULL); - } - /* - Tone each row of the image. - */ - status=MagickTrue; - progress=0; - image_view=AcquireVirtualCacheView(image,exception); - sepia_view=AcquireAuthenticCacheView(sepia_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(image,sepia_image,image->rows,1) -#endif - for (y=0; y < (ssize_t) image->rows; y++) - { - register const Quantum - *magick_restrict p; - - register ssize_t - x; - - register Quantum - *magick_restrict q; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); - q=GetCacheViewAuthenticPixels(sepia_view,0,y,sepia_image->columns,1, - exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) image->columns; x++) - { - double - intensity, - tone; - - intensity=GetPixelIntensity(image,p); - tone=intensity > threshold ? (double) QuantumRange : intensity+ - (double) QuantumRange-threshold; - SetPixelRed(sepia_image,ClampToQuantum(tone),q); - tone=intensity > (7.0*threshold/6.0) ? (double) QuantumRange : - intensity+(double) QuantumRange-7.0*threshold/6.0; - SetPixelGreen(sepia_image,ClampToQuantum(tone),q); - tone=intensity < (threshold/6.0) ? 0 : intensity-threshold/6.0; - SetPixelBlue(sepia_image,ClampToQuantum(tone),q); - tone=threshold/7.0; - if ((double) GetPixelGreen(image,q) < tone) - SetPixelGreen(sepia_image,ClampToQuantum(tone),q); - if ((double) GetPixelBlue(image,q) < tone) - SetPixelBlue(sepia_image,ClampToQuantum(tone),q); - SetPixelAlpha(sepia_image,GetPixelAlpha(image,p),q); - p+=GetPixelChannels(image); - q+=GetPixelChannels(sepia_image); - } - if (SyncCacheViewAuthenticPixels(sepia_view,exception) == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_SepiaToneImage) -#endif - proceed=SetImageProgress(image,SepiaToneImageTag,progress++, - image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - sepia_view=DestroyCacheView(sepia_view); - image_view=DestroyCacheView(image_view); - (void) NormalizeImage(sepia_image,exception); - (void) ContrastImage(sepia_image,MagickTrue,exception); - if (status == MagickFalse) - sepia_image=DestroyImage(sepia_image); - return(sepia_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% S h a d o w I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% ShadowImage() simulates a shadow from the specified image and returns it. -% -% The format of the ShadowImage method is: -% -% Image *ShadowImage(const Image *image,const double alpha, -% const double sigma,const ssize_t x_offset,const ssize_t y_offset, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o alpha: percentage transparency. -% -% o sigma: the standard deviation of the Gaussian, in pixels. -% -% o x_offset: the shadow x-offset. -% -% o y_offset: the shadow y-offset. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *ShadowImage(const Image *image,const double alpha, - const double sigma,const ssize_t x_offset,const ssize_t y_offset, - ExceptionInfo *exception) -{ -#define ShadowImageTag "Shadow/Image" - - CacheView - *image_view; - - ChannelType - channel_mask; - - Image - *border_image, - *clone_image, - *shadow_image; - - MagickBooleanType - status; - - PixelInfo - background_color; - - RectangleInfo - border_info; - - ssize_t - y; - - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - clone_image=CloneImage(image,0,0,MagickTrue,exception); - if (clone_image == (Image *) NULL) - return((Image *) NULL); - if (IsGrayColorspace(image->colorspace) != MagickFalse) - (void) SetImageColorspace(clone_image,sRGBColorspace,exception); - (void) SetImageVirtualPixelMethod(clone_image,EdgeVirtualPixelMethod, - exception); - border_info.width=(size_t) floor(2.0*sigma+0.5); - border_info.height=(size_t) floor(2.0*sigma+0.5); - border_info.x=0; - border_info.y=0; - (void) QueryColorCompliance("none",AllCompliance,&clone_image->border_color, - exception); - clone_image->alpha_trait=BlendPixelTrait; - border_image=BorderImage(clone_image,&border_info,OverCompositeOp,exception); - clone_image=DestroyImage(clone_image); - if (border_image == (Image *) NULL) - return((Image *) NULL); - if (border_image->alpha_trait == UndefinedPixelTrait) - (void) SetImageAlphaChannel(border_image,OpaqueAlphaChannel,exception); - /* - Shadow image. - */ - status=MagickTrue; - background_color=border_image->background_color; - background_color.alpha_trait=BlendPixelTrait; - image_view=AcquireAuthenticCacheView(border_image,exception); - for (y=0; y < (ssize_t) border_image->rows; y++) - { - register Quantum - *magick_restrict q; - - register ssize_t - x; - - if (status == MagickFalse) - continue; - q=QueueCacheViewAuthenticPixels(image_view,0,y,border_image->columns,1, - exception); - if (q == (Quantum *) NULL) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) border_image->columns; x++) - { - if (border_image->alpha_trait != UndefinedPixelTrait) - background_color.alpha=GetPixelAlpha(border_image,q)*alpha/100.0; - SetPixelViaPixelInfo(border_image,&background_color,q); - q+=GetPixelChannels(border_image); - } - if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse) - status=MagickFalse; - } - image_view=DestroyCacheView(image_view); - if (status == MagickFalse) - { - border_image=DestroyImage(border_image); - return((Image *) NULL); - } - channel_mask=SetImageChannelMask(border_image,AlphaChannel); - shadow_image=BlurImage(border_image,0.0,sigma,exception); - border_image=DestroyImage(border_image); - if (shadow_image == (Image *) NULL) - return((Image *) NULL); - (void) SetPixelChannelMask(shadow_image,channel_mask); - if (shadow_image->page.width == 0) - shadow_image->page.width=shadow_image->columns; - if (shadow_image->page.height == 0) - shadow_image->page.height=shadow_image->rows; - shadow_image->page.width+=x_offset-(ssize_t) border_info.width; - shadow_image->page.height+=y_offset-(ssize_t) border_info.height; - shadow_image->page.x+=x_offset-(ssize_t) border_info.width; - shadow_image->page.y+=y_offset-(ssize_t) border_info.height; - return(shadow_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% S k e t c h I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% SketchImage() simulates a pencil sketch. We convolve the image with a -% Gaussian operator of the given radius and standard deviation (sigma). For -% reasonable results, radius should be larger than sigma. Use a radius of 0 -% and SketchImage() selects a suitable radius for you. Angle gives the angle -% of the sketch. -% -% The format of the SketchImage method is: -% -% Image *SketchImage(const Image *image,const double radius, -% const double sigma,const double angle,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o radius: the radius of the Gaussian, in pixels, not counting the -% center pixel. -% -% o sigma: the standard deviation of the Gaussian, in pixels. -% -% o angle: apply the effect along this angle. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *SketchImage(const Image *image,const double radius, - const double sigma,const double angle,ExceptionInfo *exception) -{ - CacheView - *random_view; - - Image - *blend_image, - *blur_image, - *dodge_image, - *random_image, - *sketch_image; - - MagickBooleanType - status; - - RandomInfo - **magick_restrict random_info; - - ssize_t - y; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - unsigned long - key; -#endif - - /* - Sketch image. - */ - random_image=CloneImage(image,image->columns << 1,image->rows << 1, - MagickTrue,exception); - if (random_image == (Image *) NULL) - return((Image *) NULL); - status=MagickTrue; - random_info=AcquireRandomInfoThreadSet(); - random_view=AcquireAuthenticCacheView(random_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - key=GetRandomSecretKey(random_info[0]); - #pragma omp parallel for schedule(static) shared(status) \ - magick_number_threads(random_image,random_image,random_image->rows,key == ~0UL) -#endif - for (y=0; y < (ssize_t) random_image->rows; y++) - { - const int - id = GetOpenMPThreadId(); - - register Quantum - *magick_restrict q; - - register ssize_t - x; - - if (status == MagickFalse) - continue; - q=QueueCacheViewAuthenticPixels(random_view,0,y,random_image->columns,1, - exception); - if (q == (Quantum *) NULL) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) random_image->columns; x++) - { - double - value; - - register ssize_t - i; - - value=GetPseudoRandomValue(random_info[id]); - for (i=0; i < (ssize_t) GetPixelChannels(random_image); i++) - { - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - if (traits == UndefinedPixelTrait) - continue; - q[i]=ClampToQuantum(QuantumRange*value); - } - q+=GetPixelChannels(random_image); - } - if (SyncCacheViewAuthenticPixels(random_view,exception) == MagickFalse) - status=MagickFalse; - } - random_view=DestroyCacheView(random_view); - random_info=DestroyRandomInfoThreadSet(random_info); - if (status == MagickFalse) - { - random_image=DestroyImage(random_image); - return(random_image); - } - blur_image=MotionBlurImage(random_image,radius,sigma,angle,exception); - random_image=DestroyImage(random_image); - if (blur_image == (Image *) NULL) - return((Image *) NULL); - dodge_image=EdgeImage(blur_image,radius,exception); - blur_image=DestroyImage(blur_image); - if (dodge_image == (Image *) NULL) - return((Image *) NULL); - (void) NormalizeImage(dodge_image,exception); - (void) NegateImage(dodge_image,MagickFalse,exception); - (void) TransformImage(&dodge_image,(char *) NULL,"50%",exception); - sketch_image=CloneImage(image,0,0,MagickTrue,exception); - if (sketch_image == (Image *) NULL) - { - dodge_image=DestroyImage(dodge_image); - return((Image *) NULL); - } - (void) CompositeImage(sketch_image,dodge_image,ColorDodgeCompositeOp, - MagickTrue,0,0,exception); - dodge_image=DestroyImage(dodge_image); - blend_image=CloneImage(image,0,0,MagickTrue,exception); - if (blend_image == (Image *) NULL) - { - sketch_image=DestroyImage(sketch_image); - return((Image *) NULL); - } - if (blend_image->alpha_trait != BlendPixelTrait) - (void) SetImageAlpha(blend_image,TransparentAlpha,exception); - (void) SetImageArtifact(blend_image,"compose:args","20x80"); - (void) CompositeImage(sketch_image,blend_image,BlendCompositeOp,MagickTrue, - 0,0,exception); - blend_image=DestroyImage(blend_image); - return(sketch_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% S o l a r i z e I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% SolarizeImage() applies a special effect to the image, similar to the effect -% achieved in a photo darkroom by selectively exposing areas of photo -% sensitive paper to light. Threshold ranges from 0 to QuantumRange and is a -% measure of the extent of the solarization. -% -% The format of the SolarizeImage method is: -% -% MagickBooleanType SolarizeImage(Image *image,const double threshold, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o threshold: Define the extent of the solarization. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport MagickBooleanType SolarizeImage(Image *image, - const double threshold,ExceptionInfo *exception) -{ -#define SolarizeImageTag "Solarize/Image" - - CacheView - *image_view; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - ssize_t - y; - - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - if (IsGrayColorspace(image->colorspace) != MagickFalse) - (void) SetImageColorspace(image,sRGBColorspace,exception); - if (image->storage_class == PseudoClass) - { - register ssize_t - i; - - /* - Solarize colormap. - */ - for (i=0; i < (ssize_t) image->colors; i++) - { - if ((double) image->colormap[i].red > threshold) - image->colormap[i].red=QuantumRange-image->colormap[i].red; - if ((double) image->colormap[i].green > threshold) - image->colormap[i].green=QuantumRange-image->colormap[i].green; - if ((double) image->colormap[i].blue > threshold) - image->colormap[i].blue=QuantumRange-image->colormap[i].blue; - } - } - /* - Solarize image. - */ - status=MagickTrue; - progress=0; - image_view=AcquireAuthenticCacheView(image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(image,image,image->rows,1) -#endif - for (y=0; y < (ssize_t) image->rows; y++) - { - register ssize_t - x; - - register Quantum - *magick_restrict q; - - if (status == MagickFalse) - continue; - q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception); - if (q == (Quantum *) NULL) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) image->columns; x++) - { - register ssize_t - i; - - for (i=0; i < (ssize_t) GetPixelChannels(image); i++) - { - PixelChannel channel = GetPixelChannelChannel(image,i); - PixelTrait traits = GetPixelChannelTraits(image,channel); - if ((traits & UpdatePixelTrait) == 0) - continue; - if ((double) q[i] > threshold) - q[i]=QuantumRange-q[i]; - } - q+=GetPixelChannels(image); - } - if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_SolarizeImage) -#endif - proceed=SetImageProgress(image,SolarizeImageTag,progress++,image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - image_view=DestroyCacheView(image_view); - return(status); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% S t e g a n o I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% SteganoImage() hides a digital watermark within the image. Recover -% the hidden watermark later to prove that the authenticity of an image. -% Offset defines the start position within the image to hide the watermark. -% -% The format of the SteganoImage method is: -% -% Image *SteganoImage(const Image *image,Image *watermark, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o watermark: the watermark image. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *SteganoImage(const Image *image,const Image *watermark, - ExceptionInfo *exception) -{ -#define GetBit(alpha,i) ((((size_t) (alpha) >> (size_t) (i)) & 0x01) != 0) -#define SetBit(alpha,i,set) (Quantum) ((set) != 0 ? (size_t) (alpha) \ - | (one << (size_t) (i)) : (size_t) (alpha) & ~(one << (size_t) (i))) -#define SteganoImageTag "Stegano/Image" - - CacheView - *stegano_view, - *watermark_view; - - Image - *stegano_image; - - int - c; - - MagickBooleanType - status; - - PixelInfo - pixel; - - register Quantum - *q; - - register ssize_t - x; - - size_t - depth, - one; - - ssize_t - i, - j, - k, - y; - - /* - Initialize steganographic image attributes. - */ - assert(image != (const Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(watermark != (const Image *) NULL); - assert(watermark->signature == MagickCoreSignature); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - one=1UL; - stegano_image=CloneImage(image,0,0,MagickTrue,exception); - if (stegano_image == (Image *) NULL) - return((Image *) NULL); - stegano_image->depth=MAGICKCORE_QUANTUM_DEPTH; - if (SetImageStorageClass(stegano_image,DirectClass,exception) == MagickFalse) - { - stegano_image=DestroyImage(stegano_image); - return((Image *) NULL); - } - /* - Hide watermark in low-order bits of image. - */ - c=0; - i=0; - j=0; - depth=stegano_image->depth; - k=stegano_image->offset; - status=MagickTrue; - watermark_view=AcquireVirtualCacheView(watermark,exception); - stegano_view=AcquireAuthenticCacheView(stegano_image,exception); - for (i=(ssize_t) depth-1; (i >= 0) && (j < (ssize_t) depth); i--) - { - for (y=0; (y < (ssize_t) watermark->rows) && (j < (ssize_t) depth); y++) - { - for (x=0; (x < (ssize_t) watermark->columns) && (j < (ssize_t) depth); x++) - { - ssize_t - offset; - - (void) GetOneCacheViewVirtualPixelInfo(watermark_view,x,y,&pixel, - exception); - offset=k/(ssize_t) stegano_image->columns; - if (offset >= (ssize_t) stegano_image->rows) - break; - q=GetCacheViewAuthenticPixels(stegano_view,k % (ssize_t) - stegano_image->columns,k/(ssize_t) stegano_image->columns,1,1, - exception); - if (q == (Quantum *) NULL) - break; - switch (c) - { - case 0: - { - SetPixelRed(stegano_image,SetBit(GetPixelRed(stegano_image,q),j, - GetBit(GetPixelInfoIntensity(stegano_image,&pixel),i)),q); - break; - } - case 1: - { - SetPixelGreen(stegano_image,SetBit(GetPixelGreen(stegano_image,q),j, - GetBit(GetPixelInfoIntensity(stegano_image,&pixel),i)),q); - break; - } - case 2: - { - SetPixelBlue(stegano_image,SetBit(GetPixelBlue(stegano_image,q),j, - GetBit(GetPixelInfoIntensity(stegano_image,&pixel),i)),q); - break; - } - } - if (SyncCacheViewAuthenticPixels(stegano_view,exception) == MagickFalse) - break; - c++; - if (c == 3) - c=0; - k++; - if (k == (ssize_t) (stegano_image->columns*stegano_image->columns)) - k=0; - if (k == stegano_image->offset) - j++; - } - } - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - - proceed=SetImageProgress(image,SteganoImageTag,(MagickOffsetType) - (depth-i),depth); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - stegano_view=DestroyCacheView(stegano_view); - watermark_view=DestroyCacheView(watermark_view); - if (status == MagickFalse) - stegano_image=DestroyImage(stegano_image); - return(stegano_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% S t e r e o A n a g l y p h I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% StereoAnaglyphImage() combines two images and produces a single image that -% is the composite of a left and right image of a stereo pair. Special -% red-green stereo glasses are required to view this effect. -% -% The format of the StereoAnaglyphImage method is: -% -% Image *StereoImage(const Image *left_image,const Image *right_image, -% ExceptionInfo *exception) -% Image *StereoAnaglyphImage(const Image *left_image, -% const Image *right_image,const ssize_t x_offset,const ssize_t y_offset, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o left_image: the left image. -% -% o right_image: the right image. -% -% o exception: return any errors or warnings in this structure. -% -% o x_offset: amount, in pixels, by which the left image is offset to the -% right of the right image. -% -% o y_offset: amount, in pixels, by which the left image is offset to the -% bottom of the right image. -% -% -*/ -MagickExport Image *StereoImage(const Image *left_image, - const Image *right_image,ExceptionInfo *exception) -{ - return(StereoAnaglyphImage(left_image,right_image,0,0,exception)); -} - -MagickExport Image *StereoAnaglyphImage(const Image *left_image, - const Image *right_image,const ssize_t x_offset,const ssize_t y_offset, - ExceptionInfo *exception) -{ -#define StereoImageTag "Stereo/Image" - - const Image - *image; - - Image - *stereo_image; - - MagickBooleanType - status; - - ssize_t - y; - - assert(left_image != (const Image *) NULL); - assert(left_image->signature == MagickCoreSignature); - if (left_image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", - left_image->filename); - assert(right_image != (const Image *) NULL); - assert(right_image->signature == MagickCoreSignature); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - assert(right_image != (const Image *) NULL); - image=left_image; - if ((left_image->columns != right_image->columns) || - (left_image->rows != right_image->rows)) - ThrowImageException(ImageError,"LeftAndRightImageSizesDiffer"); - /* - Initialize stereo image attributes. - */ - stereo_image=CloneImage(left_image,left_image->columns,left_image->rows, - MagickTrue,exception); - if (stereo_image == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(stereo_image,DirectClass,exception) == MagickFalse) - { - stereo_image=DestroyImage(stereo_image); - return((Image *) NULL); - } - (void) SetImageColorspace(stereo_image,sRGBColorspace,exception); - /* - Copy left image to red channel and right image to blue channel. - */ - status=MagickTrue; - for (y=0; y < (ssize_t) stereo_image->rows; y++) - { - register const Quantum - *magick_restrict p, - *magick_restrict q; - - register ssize_t - x; - - register Quantum - *magick_restrict r; - - p=GetVirtualPixels(left_image,-x_offset,y-y_offset,image->columns,1, - exception); - q=GetVirtualPixels(right_image,0,y,right_image->columns,1,exception); - r=QueueAuthenticPixels(stereo_image,0,y,stereo_image->columns,1,exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL) || - (r == (Quantum *) NULL)) - break; - for (x=0; x < (ssize_t) stereo_image->columns; x++) - { - SetPixelRed(image,GetPixelRed(left_image,p),r); - SetPixelGreen(image,GetPixelGreen(right_image,q),r); - SetPixelBlue(image,GetPixelBlue(right_image,q),r); - if ((GetPixelAlphaTraits(stereo_image) & CopyPixelTrait) != 0) - SetPixelAlpha(image,(GetPixelAlpha(left_image,p)+ - GetPixelAlpha(right_image,q))/2,r); - p+=GetPixelChannels(left_image); - q+=GetPixelChannels(right_image); - r+=GetPixelChannels(stereo_image); - } - if (SyncAuthenticPixels(stereo_image,exception) == MagickFalse) - break; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - - proceed=SetImageProgress(image,StereoImageTag,(MagickOffsetType) y, - stereo_image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - if (status == MagickFalse) - stereo_image=DestroyImage(stereo_image); - return(stereo_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% S w i r l I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% SwirlImage() swirls the pixels about the center of the image, where -% degrees indicates the sweep of the arc through which each pixel is moved. -% You get a more dramatic effect as the degrees move from 1 to 360. -% -% The format of the SwirlImage method is: -% -% Image *SwirlImage(const Image *image,double degrees, -% const PixelInterpolateMethod method,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o degrees: Define the tightness of the swirling effect. -% -% o method: the pixel interpolation method. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *SwirlImage(const Image *image,double degrees, - const PixelInterpolateMethod method,ExceptionInfo *exception) -{ -#define SwirlImageTag "Swirl/Image" - - CacheView - *canvas_view, - *interpolate_view, - *swirl_view; - - double - radius; - - Image - *canvas, - *swirl_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - PointInfo - center, - scale; - - ssize_t - y; - - /* - Initialize swirl image attributes. - */ - assert(image != (const Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - canvas=CloneImage(image,0,0,MagickTrue,exception); - if (canvas == (Image *) NULL) - return((Image *) NULL); - if ((canvas->alpha_trait == UndefinedPixelTrait) && - (canvas->background_color.alpha != OpaqueAlpha)) - (void) SetImageAlphaChannel(canvas,OpaqueAlphaChannel,exception); - swirl_image=CloneImage(canvas,canvas->columns,canvas->rows,MagickTrue, - exception); - if (swirl_image == (Image *) NULL) - { - canvas=DestroyImage(canvas); - return((Image *) NULL); - } - if (SetImageStorageClass(swirl_image,DirectClass,exception) == MagickFalse) - { - canvas=DestroyImage(canvas); - swirl_image=DestroyImage(swirl_image); - return((Image *) NULL); - } - /* - Compute scaling factor. - */ - center.x=(double) canvas->columns/2.0; - center.y=(double) canvas->rows/2.0; - radius=MagickMax(center.x,center.y); - scale.x=1.0; - scale.y=1.0; - if (canvas->columns > canvas->rows) - scale.y=(double) canvas->columns/(double) canvas->rows; - else - if (canvas->columns < canvas->rows) - scale.x=(double) canvas->rows/(double) canvas->columns; - degrees=(double) DegreesToRadians(degrees); - /* - Swirl image. - */ - status=MagickTrue; - progress=0; - canvas_view=AcquireVirtualCacheView(canvas,exception); - interpolate_view=AcquireVirtualCacheView(image,exception); - swirl_view=AcquireAuthenticCacheView(swirl_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(canvas,swirl_image,canvas->rows,1) -#endif - for (y=0; y < (ssize_t) canvas->rows; y++) - { - double - distance; - - PointInfo - delta; - - register const Quantum - *magick_restrict p; - - register ssize_t - x; - - register Quantum - *magick_restrict q; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(canvas_view,0,y,canvas->columns,1,exception); - q=QueueCacheViewAuthenticPixels(swirl_view,0,y,swirl_image->columns,1, - exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - delta.y=scale.y*(double) (y-center.y); - for (x=0; x < (ssize_t) canvas->columns; x++) - { - /* - Determine if the pixel is within an ellipse. - */ - delta.x=scale.x*(double) (x-center.x); - distance=delta.x*delta.x+delta.y*delta.y; - if ((distance >= (radius*radius)) || - (GetPixelWriteMask(image,p) > (QuantumRange/2))) - { - register ssize_t - i; - - for (i=0; i < (ssize_t) GetPixelChannels(canvas); i++) - { - PixelChannel channel = GetPixelChannelChannel(canvas,i); - PixelTrait traits = GetPixelChannelTraits(canvas,channel); - PixelTrait swirl_traits = GetPixelChannelTraits(swirl_image, - channel); - if ((traits == UndefinedPixelTrait) || - (swirl_traits == UndefinedPixelTrait)) - continue; - SetPixelChannel(swirl_image,channel,p[i],q); - } - } - else - { - double - cosine, - factor, - sine; - - /* - Swirl the pixel. - */ - factor=1.0-sqrt((double) distance)/radius; - sine=sin((double) (degrees*factor*factor)); - cosine=cos((double) (degrees*factor*factor)); - status=InterpolatePixelChannels(canvas,interpolate_view,swirl_image, - method,((cosine*delta.x-sine*delta.y)/scale.x+center.x),(double) - ((sine*delta.x+cosine*delta.y)/scale.y+center.y),q,exception); - if (status == MagickFalse) - break; - } - p+=GetPixelChannels(canvas); - q+=GetPixelChannels(swirl_image); - } - if (SyncCacheViewAuthenticPixels(swirl_view,exception) == MagickFalse) - status=MagickFalse; - if (canvas->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_SwirlImage) -#endif - proceed=SetImageProgress(canvas,SwirlImageTag,progress++,canvas->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - swirl_view=DestroyCacheView(swirl_view); - interpolate_view=DestroyCacheView(interpolate_view); - canvas_view=DestroyCacheView(canvas_view); - canvas=DestroyImage(canvas); - if (status == MagickFalse) - swirl_image=DestroyImage(swirl_image); - return(swirl_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% T i n t I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% TintImage() applies a color vector to each pixel in the image. The length -% of the vector is 0 for black and white and at its maximum for the midtones. -% The vector weighting function is f(x)=(1-(4.0*((x-0.5)*(x-0.5)))) -% -% The format of the TintImage method is: -% -% Image *TintImage(const Image *image,const char *blend, -% const PixelInfo *tint,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o blend: A color value used for tinting. -% -% o tint: A color value used for tinting. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *TintImage(const Image *image,const char *blend, - const PixelInfo *tint,ExceptionInfo *exception) -{ -#define TintImageTag "Tint/Image" - - CacheView - *image_view, - *tint_view; - - double - intensity; - - GeometryInfo - geometry_info; - - Image - *tint_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - PixelInfo - color_vector; - - MagickStatusType - flags; - - ssize_t - y; - - /* - Allocate tint image. - */ - assert(image != (const Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - tint_image=CloneImage(image,0,0,MagickTrue,exception); - if (tint_image == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(tint_image,DirectClass,exception) == MagickFalse) - { - tint_image=DestroyImage(tint_image); - return((Image *) NULL); - } - if ((IsGrayColorspace(image->colorspace) != MagickFalse) && - (IsPixelInfoGray(tint) == MagickFalse)) - (void) SetImageColorspace(tint_image,sRGBColorspace,exception); - if (blend == (const char *) NULL) - return(tint_image); - /* - Determine RGB values of the color. - */ - GetPixelInfo(image,&color_vector); - flags=ParseGeometry(blend,&geometry_info); - color_vector.red=geometry_info.rho; - color_vector.green=geometry_info.rho; - color_vector.blue=geometry_info.rho; - color_vector.alpha=(MagickRealType) OpaqueAlpha; - if ((flags & SigmaValue) != 0) - color_vector.green=geometry_info.sigma; - if ((flags & XiValue) != 0) - color_vector.blue=geometry_info.xi; - if ((flags & PsiValue) != 0) - color_vector.alpha=geometry_info.psi; - if (image->colorspace == CMYKColorspace) - { - color_vector.black=geometry_info.rho; - if ((flags & PsiValue) != 0) - color_vector.black=geometry_info.psi; - if ((flags & ChiValue) != 0) - color_vector.alpha=geometry_info.chi; - } - intensity=(double) GetPixelInfoIntensity((const Image *) NULL,tint); - color_vector.red=(double) (color_vector.red*tint->red/100.0-intensity); - color_vector.green=(double) (color_vector.green*tint->green/100.0-intensity); - color_vector.blue=(double) (color_vector.blue*tint->blue/100.0-intensity); - color_vector.black=(double) (color_vector.black*tint->black/100.0-intensity); - color_vector.alpha=(double) (color_vector.alpha*tint->alpha/100.0-intensity); - /* - Tint image. - */ - status=MagickTrue; - progress=0; - image_view=AcquireVirtualCacheView(image,exception); - tint_view=AcquireAuthenticCacheView(tint_image,exception); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(image,tint_image,image->rows,1) -#endif - for (y=0; y < (ssize_t) image->rows; y++) - { - register const Quantum - *magick_restrict p; - - register Quantum - *magick_restrict q; - - register ssize_t - x; - - if (status == MagickFalse) - continue; - p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); - q=QueueCacheViewAuthenticPixels(tint_view,0,y,tint_image->columns,1, - exception); - if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) image->columns; x++) - { - PixelInfo - pixel; - - double - weight; - - GetPixelInfo(image,&pixel); - weight=QuantumScale*GetPixelRed(image,p)-0.5; - pixel.red=(MagickRealType) GetPixelRed(image,p)+color_vector.red* - (1.0-(4.0*(weight*weight))); - weight=QuantumScale*GetPixelGreen(image,p)-0.5; - pixel.green=(MagickRealType) GetPixelGreen(image,p)+color_vector.green* - (1.0-(4.0*(weight*weight))); - weight=QuantumScale*GetPixelBlue(image,p)-0.5; - pixel.blue=(MagickRealType) GetPixelBlue(image,p)+color_vector.blue* - (1.0-(4.0*(weight*weight))); - weight=QuantumScale*GetPixelBlack(image,p)-0.5; - pixel.black=(MagickRealType) GetPixelBlack(image,p)+color_vector.black* - (1.0-(4.0*(weight*weight))); - pixel.alpha=(MagickRealType) GetPixelAlpha(image,p); - SetPixelViaPixelInfo(tint_image,&pixel,q); - p+=GetPixelChannels(image); - q+=GetPixelChannels(tint_image); - } - if (SyncCacheViewAuthenticPixels(tint_view,exception) == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_TintImage) -#endif - proceed=SetImageProgress(image,TintImageTag,progress++,image->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - tint_view=DestroyCacheView(tint_view); - image_view=DestroyCacheView(image_view); - if (status == MagickFalse) - tint_image=DestroyImage(tint_image); - return(tint_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% V i g n e t t e I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% VignetteImage() softens the edges of the image in vignette style. -% -% The format of the VignetteImage method is: -% -% Image *VignetteImage(const Image *image,const double radius, -% const double sigma,const ssize_t x,const ssize_t y, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o radius: the radius of the pixel neighborhood. -% -% o sigma: the standard deviation of the Gaussian, in pixels. -% -% o x, y: Define the x and y ellipse offset. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *VignetteImage(const Image *image,const double radius, - const double sigma,const ssize_t x,const ssize_t y,ExceptionInfo *exception) -{ - char - ellipse[MagickPathExtent]; - - DrawInfo - *draw_info; - - Image - *canvas, - *blur_image, - *oval_image, - *vignette_image; - - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - canvas=CloneImage(image,0,0,MagickTrue,exception); - if (canvas == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(canvas,DirectClass,exception) == MagickFalse) - { - canvas=DestroyImage(canvas); - return((Image *) NULL); - } - canvas->alpha_trait=BlendPixelTrait; - oval_image=CloneImage(canvas,canvas->columns,canvas->rows,MagickTrue, - exception); - if (oval_image == (Image *) NULL) - { - canvas=DestroyImage(canvas); - return((Image *) NULL); - } - (void) QueryColorCompliance("#000000",AllCompliance, - &oval_image->background_color,exception); - (void) SetImageBackgroundColor(oval_image,exception); - draw_info=CloneDrawInfo((const ImageInfo *) NULL,(const DrawInfo *) NULL); - (void) QueryColorCompliance("#ffffff",AllCompliance,&draw_info->fill, - exception); - (void) QueryColorCompliance("#ffffff",AllCompliance,&draw_info->stroke, - exception); - (void) FormatLocaleString(ellipse,MagickPathExtent,"ellipse %g,%g,%g,%g," - "0.0,360.0",image->columns/2.0,image->rows/2.0,image->columns/2.0-x, - image->rows/2.0-y); - draw_info->primitive=AcquireString(ellipse); - (void) DrawImage(oval_image,draw_info,exception); - draw_info=DestroyDrawInfo(draw_info); - blur_image=BlurImage(oval_image,radius,sigma,exception); - oval_image=DestroyImage(oval_image); - if (blur_image == (Image *) NULL) - { - canvas=DestroyImage(canvas); - return((Image *) NULL); - } - blur_image->alpha_trait=UndefinedPixelTrait; - (void) CompositeImage(canvas,blur_image,IntensityCompositeOp,MagickTrue, - 0,0,exception); - blur_image=DestroyImage(blur_image); - vignette_image=MergeImageLayers(canvas,FlattenLayer,exception); - canvas=DestroyImage(canvas); - if (vignette_image != (Image *) NULL) - (void) TransformImageColorspace(vignette_image,image->colorspace,exception); - return(vignette_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% W a v e I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% WaveImage() creates a "ripple" effect in the image by shifting the pixels -% vertically along a sine wave whose amplitude and wavelength is specified -% by the given parameters. -% -% The format of the WaveImage method is: -% -% Image *WaveImage(const Image *image,const double amplitude, -% const double wave_length,const PixelInterpolateMethod method, -% ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o amplitude, wave_length: Define the amplitude and wave length of the -% sine wave. -% -% o interpolate: the pixel interpolation method. -% -% o exception: return any errors or warnings in this structure. -% -*/ -MagickExport Image *WaveImage(const Image *image,const double amplitude, - const double wave_length,const PixelInterpolateMethod method, - ExceptionInfo *exception) -{ -#define WaveImageTag "Wave/Image" - - CacheView - *canvas_view, - *wave_view; - - Image - *canvas, - *wave_image; - - MagickBooleanType - status; - - MagickOffsetType - progress; - - double - *sine_map; - - register ssize_t - i; - - ssize_t - y; - - /* - Initialize wave image attributes. - */ - assert(image != (Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); - canvas=CloneImage(image,0,0,MagickTrue,exception); - if (canvas == (Image *) NULL) - return((Image *) NULL); - if ((canvas->alpha_trait == UndefinedPixelTrait) && - (canvas->background_color.alpha != OpaqueAlpha)) - (void) SetImageAlpha(canvas,OpaqueAlpha,exception); - wave_image=CloneImage(canvas,canvas->columns,(size_t) (canvas->rows+2.0* - fabs(amplitude)),MagickTrue,exception); - if (wave_image == (Image *) NULL) - { - canvas=DestroyImage(canvas); - return((Image *) NULL); - } - if (SetImageStorageClass(wave_image,DirectClass,exception) == MagickFalse) - { - canvas=DestroyImage(canvas); - wave_image=DestroyImage(wave_image); - return((Image *) NULL); - } - /* - Allocate sine map. - */ - sine_map=(double *) AcquireQuantumMemory((size_t) wave_image->columns, - sizeof(*sine_map)); - if (sine_map == (double *) NULL) - { - canvas=DestroyImage(canvas); - wave_image=DestroyImage(wave_image); - ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); - } - for (i=0; i < (ssize_t) wave_image->columns; i++) - sine_map[i]=fabs(amplitude)+amplitude*sin((double) ((2.0*MagickPI*i)/ - wave_length)); - /* - Wave image. - */ - status=MagickTrue; - progress=0; - canvas_view=AcquireVirtualCacheView(canvas,exception); - wave_view=AcquireAuthenticCacheView(wave_image,exception); - (void) SetCacheViewVirtualPixelMethod(canvas_view, - BackgroundVirtualPixelMethod); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static) shared(progress,status) \ - magick_number_threads(canvas,wave_image,wave_image->rows,1) -#endif - for (y=0; y < (ssize_t) wave_image->rows; y++) - { - register Quantum - *magick_restrict q; - - register ssize_t - x; - - if (status == MagickFalse) - continue; - q=QueueCacheViewAuthenticPixels(wave_view,0,y,wave_image->columns,1, - exception); - if (q == (Quantum *) NULL) - { - status=MagickFalse; - continue; - } - for (x=0; x < (ssize_t) wave_image->columns; x++) - { - status=InterpolatePixelChannels(canvas,canvas_view,wave_image,method, - (double) x,(double) (y-sine_map[x]),q,exception); - if (status == MagickFalse) - break; - q+=GetPixelChannels(wave_image); - } - if (SyncCacheViewAuthenticPixels(wave_view,exception) == MagickFalse) - status=MagickFalse; - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp critical (MagickCore_WaveImage) -#endif - proceed=SetImageProgress(canvas,WaveImageTag,progress++,canvas->rows); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - wave_view=DestroyCacheView(wave_view); - canvas_view=DestroyCacheView(canvas_view); - canvas=DestroyImage(canvas); - sine_map=(double *) RelinquishMagickMemory(sine_map); - if (status == MagickFalse) - wave_image=DestroyImage(wave_image); - return(wave_image); -} - -/* -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% % -% % -% % -% W a v e l e t D e n o i s e I m a g e % -% % -% % -% % -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% -% WaveletDenoiseImage() removes noise from the image using a wavelet -% transform. The wavelet transform is a fast hierarchical scheme for -% processing an image using a set of consecutive lowpass and high_pass filters, -% followed by a decimation. This results in a decomposition into different -% scales which can be regarded as different “frequency bands”, determined by -% the mother wavelet. Adapted from dcraw.c by David Coffin. -% -% The format of the WaveletDenoiseImage method is: -% -% Image *WaveletDenoiseImage(const Image *image,const double threshold, -% const double softness,ExceptionInfo *exception) -% -% A description of each parameter follows: -% -% o image: the image. -% -% o threshold: set the threshold for smoothing. -% -% o softness: attenuate the smoothing threshold. -% -% o exception: return any errors or warnings in this structure. -% -*/ - -static inline void HatTransform(const float *magick_restrict pixels, - const size_t stride,const size_t extent,const size_t scale,float *kernel) -{ - const float - *magick_restrict p, - *magick_restrict q, - *magick_restrict r; - - register ssize_t - i; - - p=pixels; - q=pixels+scale*stride; - r=pixels+scale*stride; - for (i=0; i < (ssize_t) scale; i++) - { - kernel[i]=0.25f*(*p+(*p)+(*q)+(*r)); - p+=stride; - q-=stride; - r+=stride; - } - for ( ; i < (ssize_t) (extent-scale); i++) - { - kernel[i]=0.25f*(2.0f*(*p)+*(p-scale*stride)+*(p+scale*stride)); - p+=stride; - } - q=p-scale*stride; - r=pixels+stride*(extent-2); - for ( ; i < (ssize_t) extent; i++) - { - kernel[i]=0.25f*(*p+(*p)+(*q)+(*r)); - p+=stride; - q+=stride; - r-=stride; - } -} - -MagickExport Image *WaveletDenoiseImage(const Image *image, - const double threshold,const double softness,ExceptionInfo *exception) -{ - CacheView - *image_view, - *noise_view; - - float - *kernel, - *pixels; - - Image - *noise_image; - - MagickBooleanType - status; - - MagickSizeType - number_pixels; - - MemoryInfo - *pixels_info; - - ssize_t - channel; - - static const float - noise_levels[] = { 0.8002f, 0.2735f, 0.1202f, 0.0585f, 0.0291f, 0.0152f, - 0.0080f, 0.0044f }; - - /* - Initialize noise image attributes. - */ - assert(image != (const Image *) NULL); - assert(image->signature == MagickCoreSignature); - if (image->debug != MagickFalse) - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickCoreSignature); -#if defined(MAGICKCORE_OPENCL_SUPPORT) - noise_image=AccelerateWaveletDenoiseImage(image,threshold,exception); - if (noise_image != (Image *) NULL) - return(noise_image); -#endif - noise_image=CloneImage(image,0,0,MagickTrue,exception); - if (noise_image == (Image *) NULL) - return((Image *) NULL); - if (SetImageStorageClass(noise_image,DirectClass,exception) == MagickFalse) - { - noise_image=DestroyImage(noise_image); - return((Image *) NULL); - } - if (AcquireMagickResource(WidthResource,4*image->columns) == MagickFalse) - ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); - pixels_info=AcquireVirtualMemory(3*image->columns,image->rows* - sizeof(*pixels)); - kernel=(float *) AcquireQuantumMemory(MagickMax(image->rows,image->columns)+1, - GetOpenMPMaximumThreads()*sizeof(*kernel)); - if ((pixels_info == (MemoryInfo *) NULL) || (kernel == (float *) NULL)) - { - if (kernel != (float *) NULL) - kernel=(float *) RelinquishMagickMemory(kernel); - if (pixels_info != (MemoryInfo *) NULL) - pixels_info=RelinquishVirtualMemory(pixels_info); - ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); - } - pixels=(float *) GetVirtualMemoryBlob(pixels_info); - status=MagickTrue; - number_pixels=(MagickSizeType) image->columns*image->rows; - image_view=AcquireAuthenticCacheView(image,exception); - noise_view=AcquireAuthenticCacheView(noise_image,exception); - for (channel=0; channel < (ssize_t) GetPixelChannels(image); channel++) - { - register ssize_t - i; - - size_t - high_pass, - low_pass; - - ssize_t - level, - y; - - PixelChannel - pixel_channel; - - PixelTrait - traits; - - if (status == MagickFalse) - continue; - traits=GetPixelChannelTraits(image,(PixelChannel) channel); - if (traits == UndefinedPixelTrait) - continue; - pixel_channel=GetPixelChannelChannel(image,channel); - if ((pixel_channel != RedPixelChannel) && - (pixel_channel != GreenPixelChannel) && - (pixel_channel != BluePixelChannel)) - continue; - /* - Copy channel from image to wavelet pixel array. - */ - i=0; - for (y=0; y < (ssize_t) image->rows; y++) - { - register const Quantum - *magick_restrict p; - - ssize_t - x; - - p=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception); - if (p == (const Quantum *) NULL) - { - status=MagickFalse; - break; - } - for (x=0; x < (ssize_t) image->columns; x++) - { - pixels[i++]=(float) p[channel]; - p+=GetPixelChannels(image); - } - } - /* - Low pass filter outputs are called approximation kernel & high pass - filters are referred to as detail kernel. The detail kernel - have high values in the noisy parts of the signal. - */ - high_pass=0; - for (level=0; level < 5; level++) - { - double - magnitude; - - ssize_t - x, - y; - - low_pass=(size_t) (number_pixels*((level & 0x01)+1)); -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static,1) \ - magick_number_threads(image,image,image->rows,1) -#endif - for (y=0; y < (ssize_t) image->rows; y++) - { - const int - id = GetOpenMPThreadId(); - - register float - *magick_restrict p, - *magick_restrict q; - - register ssize_t - x; - - p=kernel+id*image->columns; - q=pixels+y*image->columns; - HatTransform(q+high_pass,1,image->columns,(size_t) (1UL << level),p); - q+=low_pass; - for (x=0; x < (ssize_t) image->columns; x++) - *q++=(*p++); - } -#if defined(MAGICKCORE_OPENMP_SUPPORT) - #pragma omp parallel for schedule(static,1) \ - magick_number_threads(image,image,image->columns,1) -#endif - for (x=0; x < (ssize_t) image->columns; x++) - { - const int - id = GetOpenMPThreadId(); - - register float - *magick_restrict p, - *magick_restrict q; - - register ssize_t - y; - - p=kernel+id*image->rows; - q=pixels+x+low_pass; - HatTransform(q,image->columns,image->rows,(size_t) (1UL << level),p); - for (y=0; y < (ssize_t) image->rows; y++) - { - *q=(*p++); - q+=image->columns; - } - } - /* - To threshold, each coefficient is compared to a threshold value and - attenuated / shrunk by some factor. - */ - magnitude=threshold*noise_levels[level]; - for (i=0; i < (ssize_t) number_pixels; ++i) - { - pixels[high_pass+i]-=pixels[low_pass+i]; - if (pixels[high_pass+i] < -magnitude) - pixels[high_pass+i]+=magnitude-softness*magnitude; - else - if (pixels[high_pass+i] > magnitude) - pixels[high_pass+i]-=magnitude-softness*magnitude; - else - pixels[high_pass+i]*=softness; - if (high_pass != 0) - pixels[i]+=pixels[high_pass+i]; - } - high_pass=low_pass; - } - /* - Reconstruct image from the thresholded wavelet kernel. - */ - i=0; - for (y=0; y < (ssize_t) image->rows; y++) - { - MagickBooleanType - sync; - - register Quantum - *magick_restrict q; - - register ssize_t - x; - - ssize_t - offset; - - q=GetCacheViewAuthenticPixels(noise_view,0,y,noise_image->columns,1, - exception); - if (q == (Quantum *) NULL) - { - status=MagickFalse; - break; - } - offset=GetPixelChannelOffset(noise_image,pixel_channel); - for (x=0; x < (ssize_t) image->columns; x++) - { - MagickRealType - pixel; - - pixel=(MagickRealType) pixels[i]+pixels[low_pass+i]; - q[offset]=ClampToQuantum(pixel); - i++; - q+=GetPixelChannels(noise_image); - } - sync=SyncCacheViewAuthenticPixels(noise_view,exception); - if (sync == MagickFalse) - status=MagickFalse; - } - if (image->progress_monitor != (MagickProgressMonitor) NULL) - { - MagickBooleanType - proceed; - - proceed=SetImageProgress(image,AddNoiseImageTag,(MagickOffsetType) - channel,GetPixelChannels(image)); - if (proceed == MagickFalse) - status=MagickFalse; - } - } - noise_view=DestroyCacheView(noise_view); - image_view=DestroyCacheView(image_view); - kernel=(float *) RelinquishMagickMemory(kernel); - pixels_info=RelinquishVirtualMemory(pixels_info); - if (status == MagickFalse) - noise_image=DestroyImage(noise_image); - return(noise_image); -} -- 2.40.0