/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % CCCC OOO L OOO RRRR SSSSS PPPP AAA CCCC EEEEE % % C O O L O O R R SS P P A A C E % % C O O L O O RRRR SSS PPPP AAAAA C EEE % % C O O L O O R R SS P A A C E % % CCCC OOO LLLLL OOO R R SSSSS P A A CCCC EEEEE % % % % % % MagickCore Image Colorspace Methods % % % % Software Design % % Cristy % % July 1992 % % % % % % Copyright 1999-2014 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 % % % % http://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/property.h" #include "MagickCore/cache.h" #include "MagickCore/cache-private.h" #include "MagickCore/cache-view.h" #include "MagickCore/color.h" #include "MagickCore/color-private.h" #include "MagickCore/colorspace.h" #include "MagickCore/colorspace-private.h" #include "MagickCore/exception.h" #include "MagickCore/exception-private.h" #include "MagickCore/image.h" #include "MagickCore/image-private.h" #include "MagickCore/gem.h" #include "MagickCore/gem-private.h" #include "MagickCore/memory_.h" #include "MagickCore/monitor.h" #include "MagickCore/monitor-private.h" #include "MagickCore/pixel-accessor.h" #include "MagickCore/pixel-private.h" #include "MagickCore/quantize.h" #include "MagickCore/quantum.h" #include "MagickCore/quantum-private.h" #include "MagickCore/resource_.h" #include "MagickCore/string_.h" #include "MagickCore/string-private.h" #include "MagickCore/utility.h" /* Typedef declarations. */ typedef struct _TransformPacket { MagickRealType x, y, z; } TransformPacket; /* Forward declarations. */ static MagickBooleanType TransformsRGBImage(Image *,ExceptionInfo *); /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % + s R G B T r a n s f o r m I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % sRGBTransformImage() converts the reference image from sRGB to an alternate % colorspace. The transformation matrices are not the standard ones: the % weights are rescaled to normalized the range of the transformed values to % be [0..QuantumRange]. % % The format of the sRGBTransformImage method is: % % MagickBooleanType sRGBTransformImage(Image *image, % const ColorspaceType colorspace,EsceptionInfo *exception) % % A description of each parameter follows: % % o image: the image. % % o colorspace: the colorspace to transform the image to. % % o exception: return any errors or warnings in this structure. % */ static inline void ConvertRGBToCMY(const double red,const double green, const double blue,double *cyan,double *magenta,double *yellow) { *cyan=QuantumScale*(QuantumRange-red); *magenta=QuantumScale*(QuantumRange-green); *yellow=QuantumScale*(QuantumRange-blue); } static inline void ConvertXYZToLMS(const double x,const double y, const double z,double *L,double *M,double *S) { *L=0.7328*x+0.4296*y-0.1624*z; *M=(-0.7036*x+1.6975*y+0.0061*z); *S=0.0030*x+0.0136*y+0.9834*z; } static void ConvertRGBToLMS(const double red,const double green, const double blue,double *L,double *M,double *S) { double X, Y, Z; ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z); ConvertXYZToLMS(X,Y,Z,L,M,S); } static void ConvertRGBToLab(const double red,const double green, const double blue,double *L,double *a,double *b) { double X, Y, Z; ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z); ConvertXYZToLab(X,Y,Z,L,a,b); } static void ConvertRGBToLuv(const double red,const double green, const double blue,double *L,double *u,double *v) { double X, Y, Z; ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z); ConvertXYZToLuv(X,Y,Z,L,u,v); } static void ConvertRGBToYDbDr(const double red,const double green, const double blue,double *Y,double *Db,double *Dr) { *Y=QuantumScale*(0.298839*red+0.586811*green+0.114350*blue); *Db=QuantumScale*(-0.450*red-0.883*green+1.333*blue)+0.5; *Dr=QuantumScale*(-1.333*red+1.116*green+0.217*blue)+0.5; } static void ConvertRGBToYIQ(const double red,const double green, const double blue,double *Y,double *I,double *Q) { *Y=QuantumScale*(0.298839*red+0.586811*green+0.114350*blue); *I=QuantumScale*(0.595716*red-0.274453*green-0.321263*blue)+0.5; *Q=QuantumScale*(0.211456*red-0.522591*green+0.311135*blue)+0.5; } static void ConvertRGBToYPbPr(const double red,const double green, const double blue,double *Y,double *Pb,double *Pr) { *Y=QuantumScale*(0.298839*red+0.586811*green+0.114350*blue); *Pb=QuantumScale*((-0.1687367)*red-0.331264*green+0.5*blue)+0.5; *Pr=QuantumScale*(0.5*red-0.418688*green-0.081312*blue)+0.5; } static void ConvertRGBToYCbCr(const double red,const double green, const double blue,double *Y,double *Cb,double *Cr) { ConvertRGBToYPbPr(red,green,blue,Y,Cb,Cr); } static void ConvertRGBToYUV(const double red,const double green, const double blue,double *Y,double *U,double *V) { *Y=QuantumScale*(0.298839*red+0.586811*green+0.114350*blue); *U=QuantumScale*((-0.147)*red-0.289*green+0.436*blue)+0.5; *V=QuantumScale*(0.615*red-0.515*green-0.100*blue)+0.5; } static MagickBooleanType sRGBTransformImage(Image *image, const ColorspaceType colorspace,ExceptionInfo *exception) { #define sRGBTransformImageTag "RGBTransform/Image" CacheView *image_view; MagickBooleanType status; MagickOffsetType progress; PrimaryInfo primary_info; register ssize_t i; ssize_t y; TransformPacket *x_map, *y_map, *z_map; assert(image != (Image *) NULL); assert(image->signature == MagickSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); assert(colorspace != sRGBColorspace); assert(colorspace != TransparentColorspace); assert(colorspace != UndefinedColorspace); status=MagickTrue; progress=0; switch (colorspace) { case CMYKColorspace: { PixelInfo zero; /* Convert RGB to CMYK colorspace. */ if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } if (SetImageColorspace(image,colorspace,exception) == MagickFalse) return(MagickFalse); GetPixelInfo(image,&zero); image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; PixelInfo pixel; register ssize_t x; register Quantum *restrict q; if (status == MagickFalse) continue; q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1, exception); if (q == (Quantum *) NULL) { status=MagickFalse; continue; } pixel=zero; for (x=0; x < (ssize_t) image->columns; x++) { GetPixelInfoPixel(image,q,&pixel); ConvertRGBToCMYK(&pixel); SetPixelInfoPixel(image,&pixel,q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); image->type=image->alpha_trait != BlendPixelTrait ? ColorSeparationType : ColorSeparationMatteType; if (SetImageColorspace(image,colorspace,exception) == MagickFalse) return(MagickFalse); return(status); } case GRAYColorspace: { /* Transform image from sRGB to GRAY. */ if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; register ssize_t x; register Quantum *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++) { SetPixelGray(image,ClampToQuantum(GetPixelIntensity(image,q)),q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); if (SetImageColorspace(image,colorspace,exception) == MagickFalse) return(MagickFalse); image->type=GrayscaleType; return(status); } case CMYColorspace: case HCLColorspace: case HCLpColorspace: case HSBColorspace: case HSIColorspace: case HSLColorspace: case HSVColorspace: case HWBColorspace: case LabColorspace: case LCHColorspace: case LCHabColorspace: case LCHuvColorspace: case LMSColorspace: case LuvColorspace: case XYZColorspace: case YCbCrColorspace: case YDbDrColorspace: case YIQColorspace: case YPbPrColorspace: case YUVColorspace: { /* Transform image from sRGB to target colorspace. */ if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; register ssize_t x; register Quantum *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++) { double blue, green, red, X, Y, Z; red=(double) GetPixelRed(image,q); green=(double) GetPixelGreen(image,q); blue=(double) GetPixelBlue(image,q); switch (colorspace) { case CMYColorspace: { ConvertRGBToCMY(red,green,blue,&X,&Y,&Z); break; } case HCLColorspace: { ConvertRGBToHCL(red,green,blue,&X,&Y,&Z); break; } case HCLpColorspace: { ConvertRGBToHCLp(red,green,blue,&X,&Y,&Z); break; } case HSBColorspace: { ConvertRGBToHSB(red,green,blue,&X,&Y,&Z); break; } case HSIColorspace: { ConvertRGBToHSI(red,green,blue,&X,&Y,&Z); break; } case HSLColorspace: { ConvertRGBToHSL(red,green,blue,&X,&Y,&Z); break; } case HSVColorspace: { ConvertRGBToHSV(red,green,blue,&X,&Y,&Z); break; } case HWBColorspace: { ConvertRGBToHWB(red,green,blue,&X,&Y,&Z); break; } case LabColorspace: { ConvertRGBToLab(red,green,blue,&X,&Y,&Z); break; } case LCHColorspace: case LCHabColorspace: { ConvertRGBToLCHab(red,green,blue,&X,&Y,&Z); break; } case LCHuvColorspace: { ConvertRGBToLCHuv(red,green,blue,&X,&Y,&Z); break; } case LMSColorspace: { ConvertRGBToLMS(red,green,blue,&X,&Y,&Z); break; } case LuvColorspace: { ConvertRGBToLuv(red,green,blue,&X,&Y,&Z); break; } case XYZColorspace: { ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z); break; } case YCbCrColorspace: { ConvertRGBToYCbCr(red,green,blue,&X,&Y,&Z); break; } case YDbDrColorspace: { ConvertRGBToYDbDr(red,green,blue,&X,&Y,&Z); break; } case YIQColorspace: { ConvertRGBToYIQ(red,green,blue,&X,&Y,&Z); break; } case YPbPrColorspace: { ConvertRGBToYPbPr(red,green,blue,&X,&Y,&Z); break; } case YUVColorspace: { ConvertRGBToYUV(red,green,blue,&X,&Y,&Z); break; } default: { X=QuantumScale*red; Y=QuantumScale*green; Z=QuantumScale*blue; break; } } SetPixelRed(image,ClampToQuantum(QuantumRange*X),q); SetPixelGreen(image,ClampToQuantum(QuantumRange*Y),q); SetPixelBlue(image,ClampToQuantum(QuantumRange*Z),q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); if (SetImageColorspace(image,colorspace,exception) == MagickFalse) return(MagickFalse); return(status); } case LogColorspace: { #define DisplayGamma (1.0/1.7) #define FilmGamma 0.6 #define ReferenceBlack 95.0 #define ReferenceWhite 685.0 const char *value; double black, density, film_gamma, gamma, reference_black, reference_white; Quantum *logmap; /* Transform RGB to Log colorspace. */ density=DisplayGamma; gamma=DisplayGamma; value=GetImageProperty(image,"gamma",exception); if (value != (const char *) NULL) gamma=PerceptibleReciprocal(StringToDouble(value,(char **) NULL)); film_gamma=FilmGamma; value=GetImageProperty(image,"film-gamma",exception); if (value != (const char *) NULL) film_gamma=StringToDouble(value,(char **) NULL); reference_black=ReferenceBlack; value=GetImageProperty(image,"reference-black",exception); if (value != (const char *) NULL) reference_black=StringToDouble(value,(char **) NULL); reference_white=ReferenceWhite; value=GetImageProperty(image,"reference-white",exception); if (value != (const char *) NULL) reference_white=StringToDouble(value,(char **) NULL); logmap=(Quantum *) AcquireQuantumMemory((size_t) MaxMap+1UL, sizeof(*logmap)); if (logmap == (Quantum *) NULL) ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", image->filename); black=pow(10.0,(reference_black-reference_white)*(gamma/density)*0.002/ film_gamma); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) logmap[i]=ScaleMapToQuantum((double) (MaxMap*(reference_white+ log10(black+(1.0*i/MaxMap)*(1.0-black))/((gamma/density)*0.002/ film_gamma))/1024.0)); image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; register ssize_t x; register Quantum *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=(ssize_t) image->columns; x != 0; x--) { double blue, green, red; red=(double) DecodePixelGamma((MagickRealType) GetPixelRed(image,q)); green=(double) DecodePixelGamma((MagickRealType) GetPixelGreen(image,q)); blue=(double) DecodePixelGamma((MagickRealType) GetPixelBlue(image,q)); SetPixelRed(image,logmap[ScaleQuantumToMap(ClampToQuantum(red))],q); SetPixelGreen(image,logmap[ScaleQuantumToMap(ClampToQuantum(green))], q); SetPixelBlue(image,logmap[ScaleQuantumToMap(ClampToQuantum(blue))],q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); logmap=(Quantum *) RelinquishMagickMemory(logmap); if (SetImageColorspace(image,colorspace,exception) == MagickFalse) return(MagickFalse); return(status); } case RGBColorspace: case scRGBColorspace: { /* Transform image from sRGB to linear RGB. */ if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; register ssize_t x; register Quantum *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++) { double blue, green, red; red=DecodePixelGamma((MagickRealType) GetPixelRed(image,q)); green=DecodePixelGamma((MagickRealType) GetPixelGreen(image,q)); blue=DecodePixelGamma((MagickRealType) GetPixelBlue(image,q)); SetPixelRed(image,ClampToQuantum(red),q); SetPixelGreen(image,ClampToQuantum(green),q); SetPixelBlue(image,ClampToQuantum(blue),q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); if (SetImageColorspace(image,colorspace,exception) == MagickFalse) return(MagickFalse); return(status); } default: break; } /* Allocate the tables. */ x_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL, sizeof(*x_map)); y_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL, sizeof(*y_map)); z_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL, sizeof(*z_map)); if ((x_map == (TransformPacket *) NULL) || (y_map == (TransformPacket *) NULL) || (z_map == (TransformPacket *) NULL)) ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", image->filename); (void) ResetMagickMemory(&primary_info,0,sizeof(primary_info)); switch (colorspace) { case OHTAColorspace: { /* Initialize OHTA tables: I1 = 0.33333*R+0.33334*G+0.33333*B I2 = 0.50000*R+0.00000*G-0.50000*B I3 =-0.25000*R+0.50000*G-0.25000*B I and Q, normally -0.5 through 0.5, are normalized to the range 0 through QuantumRange. */ primary_info.y=(double) (MaxMap+1.0)/2.0; primary_info.z=(double) (MaxMap+1.0)/2.0; #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=(MagickRealType) (0.33333*(double) i); y_map[i].x=(MagickRealType) (0.33334*(double) i); z_map[i].x=(MagickRealType) (0.33333*(double) i); x_map[i].y=(MagickRealType) (0.50000*(double) i); y_map[i].y=(MagickRealType) (0.00000*(double) i); z_map[i].y=(MagickRealType) (-0.50000*(double) i); x_map[i].z=(MagickRealType) (-0.25000*(double) i); y_map[i].z=(MagickRealType) (0.50000*(double) i); z_map[i].z=(MagickRealType) (-0.25000*(double) i); } break; } case Rec601YCbCrColorspace: { /* Initialize YCbCr tables (ITU-R BT.601): Y = 0.2988390*R+0.5868110*G+0.1143500*B Cb= -0.1687367*R-0.3312640*G+0.5000000*B Cr= 0.5000000*R-0.4186880*G-0.0813120*B Cb and Cr, normally -0.5 through 0.5, are normalized to the range 0 through QuantumRange. */ primary_info.y=(double) (MaxMap+1.0)/2.0; primary_info.z=(double) (MaxMap+1.0)/2.0; #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=(MagickRealType) (0.298839*(double) i); y_map[i].x=(MagickRealType) (0.586811*(double) i); z_map[i].x=(MagickRealType) (0.114350*(double) i); x_map[i].y=(MagickRealType) (-0.1687367*(double) i); y_map[i].y=(MagickRealType) (-0.331264*(double) i); z_map[i].y=(MagickRealType) (0.500000*(double) i); x_map[i].z=(MagickRealType) (0.500000*(double) i); y_map[i].z=(MagickRealType) (-0.418688*(double) i); z_map[i].z=(MagickRealType) (-0.081312*(double) i); } break; } case Rec709YCbCrColorspace: { /* Initialize YCbCr tables (ITU-R BT.709): Y = 0.212656*R+0.715158*G+0.072186*B Cb= -0.114572*R-0.385428*G+0.500000*B Cr= 0.500000*R-0.454153*G-0.045847*B Cb and Cr, normally -0.5 through 0.5, are normalized to the range 0 through QuantumRange. */ primary_info.y=(double) (MaxMap+1.0)/2.0; primary_info.z=(double) (MaxMap+1.0)/2.0; #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=(MagickRealType) (0.212656*(double) i); y_map[i].x=(MagickRealType) (0.715158*(double) i); z_map[i].x=(MagickRealType) (0.072186*(double) i); x_map[i].y=(MagickRealType) (-0.114572*(double) i); y_map[i].y=(MagickRealType) (-0.385428*(double) i); z_map[i].y=(MagickRealType) (0.500000*(double) i); x_map[i].z=(MagickRealType) (0.500000*(double) i); y_map[i].z=(MagickRealType) (-0.454153*(double) i); z_map[i].z=(MagickRealType) (-0.045847*(double) i); } break; } case YCCColorspace: { /* Initialize YCC tables: Y = 0.298839*R+0.586811*G+0.114350*B C1= -0.298839*R-0.586811*G+0.88600*B C2= 0.70100*R-0.586811*G-0.114350*B YCC is scaled by 1.3584. C1 zero is 156 and C2 is at 137. */ primary_info.y=(double) ScaleQuantumToMap(ScaleCharToQuantum(156)); primary_info.z=(double) ScaleQuantumToMap(ScaleCharToQuantum(137)); for (i=0; i <= (ssize_t) (0.018*MaxMap); i++) { x_map[i].x=0.003962014134275617*i; y_map[i].x=0.007778268551236748*i; z_map[i].x=0.001510600706713781*i; x_map[i].y=(-0.002426619775463276)*i; y_map[i].y=(-0.004763965913702149)*i; z_map[i].y=0.007190585689165425*i; x_map[i].z=0.006927257754597858*i; y_map[i].z=(-0.005800713697502058)*i; z_map[i].z=(-0.0011265440570958)*i; } for ( ; i <= (ssize_t) MaxMap; i++) { x_map[i].x=0.2201118963486454*(1.099*i-0.099); y_map[i].x=0.4321260306242638*(1.099*i-0.099); z_map[i].x=0.08392226148409894*(1.099*i-0.099); x_map[i].y=(-0.1348122097479598)*(1.099*i-0.099); y_map[i].y=(-0.2646647729834528)*(1.099*i-0.099); z_map[i].y=0.3994769827314126*(1.099*i-0.099); x_map[i].z=0.3848476530332144*(1.099*i-0.099); y_map[i].z=(-0.3222618720834477)*(1.099*i-0.099); z_map[i].z=(-0.06258578094976668)*(1.099*i-0.099); } break; } default: { /* Linear conversion tables. */ #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=(MagickRealType) (1.0*(double) i); y_map[i].x=(MagickRealType) 0.0; z_map[i].x=(MagickRealType) 0.0; x_map[i].y=(MagickRealType) 0.0; y_map[i].y=(MagickRealType) (1.0*(double) i); z_map[i].y=(MagickRealType) 0.0; x_map[i].z=(MagickRealType) 0.0; y_map[i].z=(MagickRealType) 0.0; z_map[i].z=(MagickRealType) (1.0*(double) i); } break; } } /* Convert from sRGB. */ switch (image->storage_class) { case DirectClass: default: { /* Convert DirectClass image. */ image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; PixelInfo pixel; register Quantum *restrict q; register ssize_t x; register unsigned int blue, green, red; 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++) { red=ScaleQuantumToMap(ClampToQuantum((MagickRealType) GetPixelRed(image,q))); green=ScaleQuantumToMap(ClampToQuantum((MagickRealType) GetPixelGreen(image,q))); blue=ScaleQuantumToMap(ClampToQuantum((MagickRealType) GetPixelBlue(image,q))); pixel.red=(x_map[red].x+y_map[green].x+z_map[blue].x)+ primary_info.x; pixel.green=(x_map[red].y+y_map[green].y+z_map[blue].y)+ primary_info.y; pixel.blue=(x_map[red].z+y_map[green].z+z_map[blue].z)+ primary_info.z; SetPixelRed(image,ScaleMapToQuantum(pixel.red),q); SetPixelGreen(image,ScaleMapToQuantum(pixel.green),q); SetPixelBlue(image,ScaleMapToQuantum(pixel.blue),q); q+=GetPixelChannels(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_sRGBTransformImage) #endif proceed=SetImageProgress(image,sRGBTransformImageTag,progress++, image->rows); if (proceed == MagickFalse) status=MagickFalse; } } image_view=DestroyCacheView(image_view); break; } case PseudoClass: { register unsigned int blue, green, red; /* Convert PseudoClass image. */ for (i=0; i < (ssize_t) image->colors; i++) { PixelInfo pixel; red=ScaleQuantumToMap(ClampToQuantum(image->colormap[i].red)); green=ScaleQuantumToMap(ClampToQuantum(image->colormap[i].green)); blue=ScaleQuantumToMap(ClampToQuantum(image->colormap[i].blue)); pixel.red=x_map[red].x+y_map[green].x+z_map[blue].x+primary_info.x; pixel.green=x_map[red].y+y_map[green].y+z_map[blue].y+primary_info.y; pixel.blue=x_map[red].z+y_map[green].z+z_map[blue].z+primary_info.z; image->colormap[i].red=(double) ScaleMapToQuantum(pixel.red); image->colormap[i].green=(double) ScaleMapToQuantum(pixel.green); image->colormap[i].blue=(double) ScaleMapToQuantum(pixel.blue); } (void) SyncImage(image,exception); break; } } /* Relinquish resources. */ z_map=(TransformPacket *) RelinquishMagickMemory(z_map); y_map=(TransformPacket *) RelinquishMagickMemory(y_map); x_map=(TransformPacket *) RelinquishMagickMemory(x_map); if (SetImageColorspace(image,colorspace,exception) == MagickFalse) return(MagickFalse); return(status); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % S e t I m a g e C o l o r s p a c e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % SetImageColorspace() sets the colorspace member of the Image structure. % % The format of the SetImageColorspace method is: % % MagickBooleanType SetImageColorspace(Image *image, % const ColorspaceType colorspace,ExceptiionInfo *exception) % % A description of each parameter follows: % % o image: the image. % % o colorspace: the colorspace. % % o exception: return any errors or warnings in this structure. % */ MagickExport MagickBooleanType SetImageColorspace(Image *image, const ColorspaceType colorspace,ExceptionInfo *exception) { ImageType type; MagickBooleanType status; if (image->colorspace == colorspace) return(MagickTrue); image->colorspace=colorspace; image->rendering_intent=UndefinedIntent; image->gamma=1.000/2.200; (void) ResetMagickMemory(&image->chromaticity,0,sizeof(image->chromaticity)); type=image->type; if (IsGrayColorspace(colorspace) != MagickFalse) { if ((image->intensity == Rec601LuminancePixelIntensityMethod) || (image->intensity == Rec709LuminancePixelIntensityMethod)) image->gamma=1.000; type=GrayscaleType; } else if ((IsRGBColorspace(colorspace) != MagickFalse) || (colorspace == XYZColorspace)) image->gamma=1.000; else { image->rendering_intent=PerceptualIntent; image->chromaticity.red_primary.x=0.6400; image->chromaticity.red_primary.y=0.3300; image->chromaticity.red_primary.z=0.0300; image->chromaticity.green_primary.x=0.3000; image->chromaticity.green_primary.y=0.6000; image->chromaticity.green_primary.z=0.1000; image->chromaticity.blue_primary.x=0.1500; image->chromaticity.blue_primary.y=0.0600; image->chromaticity.blue_primary.z=0.7900; image->chromaticity.white_point.x=0.3127; image->chromaticity.white_point.y=0.3290; image->chromaticity.white_point.z=0.3583; } status=SyncImagePixelCache(image,exception); image->type=type; return(status); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % T r a n s f o r m I m a g e C o l o r s p a c e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % TransformImageColorspace() transforms an image colorspace, changing the % image data to reflect the new colorspace. % % The format of the TransformImageColorspace method is: % % MagickBooleanType TransformImageColorspace(Image *image, % const ColorspaceType colorspace,ExceptionInfo *exception) % % A description of each parameter follows: % % o image: the image. % % o colorspace: the colorspace. % % o exception: return any errors or warnings in this structure. % */ MagickExport MagickBooleanType TransformImageColorspace(Image *image, const ColorspaceType colorspace,ExceptionInfo *exception) { MagickBooleanType status; assert(image != (Image *) NULL); assert(image->signature == MagickSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); if (image->colorspace == colorspace) return(MagickTrue); if ((image->colorspace == GRAYColorspace) && (image->gamma != 1.0) && (colorspace == sRGBColorspace)) return(MagickTrue); if (colorspace == UndefinedColorspace) return(SetImageColorspace(image,colorspace,exception)); /* Convert the reference image from an alternate colorspace to sRGB. */ (void) DeleteImageProfile(image,"icc"); (void) DeleteImageProfile(image,"icm"); if (IssRGBColorspace(colorspace) != MagickFalse) return(TransformsRGBImage(image,exception)); status=MagickTrue; if (IssRGBColorspace(image->colorspace) == MagickFalse) status=TransformsRGBImage(image,exception); if (status == MagickFalse) return(status); /* Convert the reference image from sRGB to an alternate colorspace. */ if (sRGBTransformImage(image,colorspace,exception) == MagickFalse) status=MagickFalse; return(status); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % + T r a n s f o r m s R G B I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % TransformsRGBImage() converts the reference image from an alternate % colorspace to sRGB. The transformation matrices are not the standard ones: % the weights are rescaled to normalize the range of the transformed values % to be [0..QuantumRange]. % % The format of the TransformsRGBImage method is: % % MagickBooleanType TransformsRGBImage(Image *image, % ExceptionInfo *exception) % % A description of each parameter follows: % % o image: the image. % % o exception: return any errors or warnings in this structure. % */ static inline void ConvertCMYToRGB(const double cyan,const double magenta, const double yellow,double *red,double *green,double *blue) { *red=QuantumRange*(1.0-cyan); *green=QuantumRange*(1.0-magenta); *blue=QuantumRange*(1.0-yellow); } static inline void ConvertLMSToXYZ(const double L,const double M,const double S, double *X,double *Y,double *Z) { *X=1.096123820835514*L-0.278869000218287*M+0.182745179382773*S; *Y=0.454369041975359*L+0.473533154307412*M+0.072097803717229*S; *Z=(-0.009627608738429)*L-0.005698031216113*M+1.015325639954543*S; } static inline void ConvertLMSToRGB(const double L,const double M, const double S,double *red,double *green,double *blue) { double X, Y, Z; ConvertLMSToXYZ(L,M,S,&X,&Y,&Z); ConvertXYZToRGB(X,Y,Z,red,green,blue); } static inline void ConvertLuvToRGB(const double L,const double u, const double v,double *red,double *green,double *blue) { double X, Y, Z; ConvertLuvToXYZ(100.0*L,354.0*u-134.0,262.0*v-140.0,&X,&Y,&Z); ConvertXYZToRGB(X,Y,Z,red,green,blue); } static inline ssize_t RoundToYCC(const double value) { if (value <= 0.0) return(0); if (value >= 1388.0) return(1388); return((ssize_t) (value+0.5)); } static inline void ConvertCMYKToRGB(PixelInfo *pixel) { pixel->red=((QuantumRange-(QuantumScale*pixel->red* (QuantumRange-pixel->black)+pixel->black))); pixel->green=((QuantumRange-(QuantumScale*pixel->green* (QuantumRange-pixel->black)+pixel->black))); pixel->blue=((QuantumRange-(QuantumScale*pixel->blue* (QuantumRange-pixel->black)+pixel->black))); } static inline void ConvertLabToRGB(const double L,const double a, const double b,double *red,double *green,double *blue) { double X, Y, Z; ConvertLabToXYZ(100.0*L,255.0*(a-0.5),255.0*(b-0.5),&X,&Y,&Z); ConvertXYZToRGB(X,Y,Z,red,green,blue); } static void ConvertYPbPrToRGB(const double Y,const double Pb,const double Pr, double *red,double *green,double *blue) { *red=QuantumRange*(0.99999999999914679361*Y-1.2188941887145875e-06*(Pb-0.5)+ 1.4019995886561440468*(Pr-0.5)); *green=QuantumRange*(0.99999975910502514331*Y-0.34413567816504303521*(Pb-0.5)- 0.71413649331646789076*(Pr-0.5)); *blue=QuantumRange*(1.00000124040004623180*Y+1.77200006607230409200*(Pb-0.5)+ 2.1453384174593273e-06*(Pr-0.5)); } static void ConvertYCbCrToRGB(const double Y,const double Cb, const double Cr,double *red,double *green,double *blue) { ConvertYPbPrToRGB(Y,Cb,Cr,red,green,blue); } static void ConvertYIQToRGB(const double Y,const double I,const double Q, double *red,double *green,double *blue) { *red=QuantumRange*(Y+0.9562957197589482261*(I-0.5)+0.6210244164652610754* (Q-0.5)); *green=QuantumRange*(Y-0.2721220993185104464*(I-0.5)-0.6473805968256950427* (Q-0.5)); *blue=QuantumRange*(Y-1.1069890167364901945*(I-0.5)+1.7046149983646481374* (Q-0.5)); } static void ConvertYDbDrToRGB(const double Y,const double Db,const double Dr, double *red,double *green,double *blue) { *red=QuantumRange*(Y+9.2303716147657e-05*(Db-0.5)- 0.52591263066186533*(Dr-0.5)); *green=QuantumRange*(Y-0.12913289889050927*(Db-0.5)+ 0.26789932820759876*(Dr-0.5)); *blue=QuantumRange*(Y+0.66467905997895482*(Db-0.5)- 7.9202543533108e-05*(Dr-0.5)); } static void ConvertYUVToRGB(const double Y,const double U,const double V, double *red,double *green,double *blue) { *red=QuantumRange*(Y-3.945707070708279e-05*(U-0.5)+1.1398279671717170825* (V-0.5)); *green=QuantumRange*(Y-0.3946101641414141437*(U-0.5)-0.5805003156565656797* (V-0.5)); *blue=QuantumRange*(Y+2.0319996843434342537*(U-0.5)-4.813762626262513e-04* (V-0.5)); } static MagickBooleanType TransformsRGBImage(Image *image, ExceptionInfo *exception) { #define TransformsRGBImageTag "Transform/Image" static const float YCCMap[1389] = { 0.000000f, 0.000720f, 0.001441f, 0.002161f, 0.002882f, 0.003602f, 0.004323f, 0.005043f, 0.005764f, 0.006484f, 0.007205f, 0.007925f, 0.008646f, 0.009366f, 0.010086f, 0.010807f, 0.011527f, 0.012248f, 0.012968f, 0.013689f, 0.014409f, 0.015130f, 0.015850f, 0.016571f, 0.017291f, 0.018012f, 0.018732f, 0.019452f, 0.020173f, 0.020893f, 0.021614f, 0.022334f, 0.023055f, 0.023775f, 0.024496f, 0.025216f, 0.025937f, 0.026657f, 0.027378f, 0.028098f, 0.028818f, 0.029539f, 0.030259f, 0.030980f, 0.031700f, 0.032421f, 0.033141f, 0.033862f, 0.034582f, 0.035303f, 0.036023f, 0.036744f, 0.037464f, 0.038184f, 0.038905f, 0.039625f, 0.040346f, 0.041066f, 0.041787f, 0.042507f, 0.043228f, 0.043948f, 0.044669f, 0.045389f, 0.046110f, 0.046830f, 0.047550f, 0.048271f, 0.048991f, 0.049712f, 0.050432f, 0.051153f, 0.051873f, 0.052594f, 0.053314f, 0.054035f, 0.054755f, 0.055476f, 0.056196f, 0.056916f, 0.057637f, 0.058357f, 0.059078f, 0.059798f, 0.060519f, 0.061239f, 0.061960f, 0.062680f, 0.063401f, 0.064121f, 0.064842f, 0.065562f, 0.066282f, 0.067003f, 0.067723f, 0.068444f, 0.069164f, 0.069885f, 0.070605f, 0.071326f, 0.072046f, 0.072767f, 0.073487f, 0.074207f, 0.074928f, 0.075648f, 0.076369f, 0.077089f, 0.077810f, 0.078530f, 0.079251f, 0.079971f, 0.080692f, 0.081412f, 0.082133f, 0.082853f, 0.083573f, 0.084294f, 0.085014f, 0.085735f, 0.086455f, 0.087176f, 0.087896f, 0.088617f, 0.089337f, 0.090058f, 0.090778f, 0.091499f, 0.092219f, 0.092939f, 0.093660f, 0.094380f, 0.095101f, 0.095821f, 0.096542f, 0.097262f, 0.097983f, 0.098703f, 0.099424f, 0.100144f, 0.100865f, 0.101585f, 0.102305f, 0.103026f, 0.103746f, 0.104467f, 0.105187f, 0.105908f, 0.106628f, 0.107349f, 0.108069f, 0.108790f, 0.109510f, 0.110231f, 0.110951f, 0.111671f, 0.112392f, 0.113112f, 0.113833f, 0.114553f, 0.115274f, 0.115994f, 0.116715f, 0.117435f, 0.118156f, 0.118876f, 0.119597f, 0.120317f, 0.121037f, 0.121758f, 0.122478f, 0.123199f, 0.123919f, 0.124640f, 0.125360f, 0.126081f, 0.126801f, 0.127522f, 0.128242f, 0.128963f, 0.129683f, 0.130403f, 0.131124f, 0.131844f, 0.132565f, 0.133285f, 0.134006f, 0.134726f, 0.135447f, 0.136167f, 0.136888f, 0.137608f, 0.138329f, 0.139049f, 0.139769f, 0.140490f, 0.141210f, 0.141931f, 0.142651f, 0.143372f, 0.144092f, 0.144813f, 0.145533f, 0.146254f, 0.146974f, 0.147695f, 0.148415f, 0.149135f, 0.149856f, 0.150576f, 0.151297f, 0.152017f, 0.152738f, 0.153458f, 0.154179f, 0.154899f, 0.155620f, 0.156340f, 0.157061f, 0.157781f, 0.158501f, 0.159222f, 0.159942f, 0.160663f, 0.161383f, 0.162104f, 0.162824f, 0.163545f, 0.164265f, 0.164986f, 0.165706f, 0.166427f, 0.167147f, 0.167867f, 0.168588f, 0.169308f, 0.170029f, 0.170749f, 0.171470f, 0.172190f, 0.172911f, 0.173631f, 0.174352f, 0.175072f, 0.175793f, 0.176513f, 0.177233f, 0.177954f, 0.178674f, 0.179395f, 0.180115f, 0.180836f, 0.181556f, 0.182277f, 0.182997f, 0.183718f, 0.184438f, 0.185159f, 0.185879f, 0.186599f, 0.187320f, 0.188040f, 0.188761f, 0.189481f, 0.190202f, 0.190922f, 0.191643f, 0.192363f, 0.193084f, 0.193804f, 0.194524f, 0.195245f, 0.195965f, 0.196686f, 0.197406f, 0.198127f, 0.198847f, 0.199568f, 0.200288f, 0.201009f, 0.201729f, 0.202450f, 0.203170f, 0.203890f, 0.204611f, 0.205331f, 0.206052f, 0.206772f, 0.207493f, 0.208213f, 0.208934f, 0.209654f, 0.210375f, 0.211095f, 0.211816f, 0.212536f, 0.213256f, 0.213977f, 0.214697f, 0.215418f, 0.216138f, 0.216859f, 0.217579f, 0.218300f, 0.219020f, 0.219741f, 0.220461f, 0.221182f, 0.221902f, 0.222622f, 0.223343f, 0.224063f, 0.224784f, 0.225504f, 0.226225f, 0.226945f, 0.227666f, 0.228386f, 0.229107f, 0.229827f, 0.230548f, 0.231268f, 0.231988f, 0.232709f, 0.233429f, 0.234150f, 0.234870f, 0.235591f, 0.236311f, 0.237032f, 0.237752f, 0.238473f, 0.239193f, 0.239914f, 0.240634f, 0.241354f, 0.242075f, 0.242795f, 0.243516f, 0.244236f, 0.244957f, 0.245677f, 0.246398f, 0.247118f, 0.247839f, 0.248559f, 0.249280f, 0.250000f, 0.250720f, 0.251441f, 0.252161f, 0.252882f, 0.253602f, 0.254323f, 0.255043f, 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0.976945f, 0.977666f, 0.978386f, 0.979107f, 0.979827f, 0.980548f, 0.981268f, 0.981988f, 0.982709f, 0.983429f, 0.984150f, 0.984870f, 0.985591f, 0.986311f, 0.987032f, 0.987752f, 0.988473f, 0.989193f, 0.989914f, 0.990634f, 0.991354f, 0.992075f, 0.992795f, 0.993516f, 0.994236f, 0.994957f, 0.995677f, 0.996398f, 0.997118f, 0.997839f, 0.998559f, 0.999280f, 1.000000f }; CacheView *image_view; MagickBooleanType status; MagickOffsetType progress; register ssize_t i; ssize_t y; TransformPacket *y_map, *x_map, *z_map; assert(image != (Image *) NULL); assert(image->signature == MagickSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); status=MagickTrue; progress=0; switch (image->colorspace) { case CMYKColorspace: { PixelInfo zero; /* Transform image from CMYK to sRGB. */ if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } GetPixelInfo(image,&zero); image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; PixelInfo pixel; register ssize_t x; register Quantum *restrict q; if (status == MagickFalse) continue; q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1, exception); if (q == (Quantum *) NULL) { status=MagickFalse; continue; } pixel=zero; for (x=0; x < (ssize_t) image->columns; x++) { GetPixelInfoPixel(image,q,&pixel); ConvertCMYKToRGB(&pixel); SetPixelInfoPixel(image,&pixel,q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); if (SetImageColorspace(image,sRGBColorspace,exception) == MagickFalse) return(MagickFalse); return(status); } case GRAYColorspace: { /* Transform linear GRAY to sRGB colorspace. */ if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } if (SetImageColorspace(image,sRGBColorspace,exception) == MagickFalse) return(MagickFalse); image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; register ssize_t x; register Quantum *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=(ssize_t) image->columns; x != 0; x--) { MagickRealType gray; gray=(MagickRealType) GetPixelGray(image,q); if ((image->intensity == Rec601LuminancePixelIntensityMethod) || (image->intensity == Rec709LuminancePixelIntensityMethod)) gray=EncodePixelGamma(gray); SetPixelRed(image,ClampToQuantum(gray),q); SetPixelGreen(image,ClampToQuantum(gray),q); SetPixelBlue(image,ClampToQuantum(gray),q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); if (SetImageColorspace(image,sRGBColorspace,exception) == MagickFalse) return(MagickFalse); return(status); } case CMYColorspace: case HCLColorspace: case HCLpColorspace: case HSBColorspace: case HSIColorspace: case HSLColorspace: case HSVColorspace: case HWBColorspace: case LabColorspace: case LCHColorspace: case LCHabColorspace: case LCHuvColorspace: case LMSColorspace: case LuvColorspace: case XYZColorspace: case YCbCrColorspace: case YDbDrColorspace: case YIQColorspace: case YPbPrColorspace: case YUVColorspace: { /* Transform image from source colorspace to sRGB. */ if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; register ssize_t x; register Quantum *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++) { double blue, green, red, X, Y, Z; X=QuantumScale*GetPixelRed(image,q); Y=QuantumScale*GetPixelGreen(image,q); Z=QuantumScale*GetPixelBlue(image,q); switch (image->colorspace) { case CMYColorspace: { ConvertCMYToRGB(X,Y,Z,&red,&green,&blue); break; } case HCLColorspace: { ConvertHCLToRGB(X,Y,Z,&red,&green,&blue); break; } case HCLpColorspace: { ConvertHCLpToRGB(X,Y,Z,&red,&green,&blue); break; } case HSBColorspace: { ConvertHSBToRGB(X,Y,Z,&red,&green,&blue); break; } case HSIColorspace: { ConvertHSIToRGB(X,Y,Z,&red,&green,&blue); break; } case HSLColorspace: { ConvertHSLToRGB(X,Y,Z,&red,&green,&blue); break; } case HSVColorspace: { ConvertHSVToRGB(X,Y,Z,&red,&green,&blue); break; } case HWBColorspace: { ConvertHWBToRGB(X,Y,Z,&red,&green,&blue); break; } case LabColorspace: { ConvertLabToRGB(X,Y,Z,&red,&green,&blue); break; } case LCHColorspace: case LCHabColorspace: { ConvertLCHabToRGB(X,Y,Z,&red,&green,&blue); break; } case LCHuvColorspace: { ConvertLCHuvToRGB(X,Y,Z,&red,&green,&blue); break; } case LMSColorspace: { ConvertLMSToRGB(X,Y,Z,&red,&green,&blue); break; } case LuvColorspace: { ConvertLuvToRGB(X,Y,Z,&red,&green,&blue); break; } case XYZColorspace: { ConvertXYZToRGB(X,Y,Z,&red,&green,&blue); break; } case YCbCrColorspace: { ConvertYCbCrToRGB(X,Y,Z,&red,&green,&blue); break; } case YDbDrColorspace: { ConvertYDbDrToRGB(X,Y,Z,&red,&green,&blue); break; } case YIQColorspace: { ConvertYIQToRGB(X,Y,Z,&red,&green,&blue); break; } case YPbPrColorspace: { ConvertYPbPrToRGB(X,Y,Z,&red,&green,&blue); break; } case YUVColorspace: { ConvertYUVToRGB(X,Y,Z,&red,&green,&blue); break; } default: { red=QuantumRange*X; green=QuantumRange*Y; blue=QuantumRange*Z; break; } } SetPixelRed(image,ClampToQuantum(red),q); SetPixelGreen(image,ClampToQuantum(green),q); SetPixelBlue(image,ClampToQuantum(blue),q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); if (SetImageColorspace(image,sRGBColorspace,exception) == MagickFalse) return(MagickFalse); return(status); } case LogColorspace: { const char *value; double black, density, film_gamma, gamma, reference_black, reference_white; Quantum *logmap; /* Transform Log to sRGB colorspace. */ density=DisplayGamma; gamma=DisplayGamma; value=GetImageProperty(image,"gamma",exception); if (value != (const char *) NULL) gamma=PerceptibleReciprocal(StringToDouble(value,(char **) NULL)); film_gamma=FilmGamma; value=GetImageProperty(image,"film-gamma",exception); if (value != (const char *) NULL) film_gamma=StringToDouble(value,(char **) NULL); reference_black=ReferenceBlack; value=GetImageProperty(image,"reference-black",exception); if (value != (const char *) NULL) reference_black=StringToDouble(value,(char **) NULL); reference_white=ReferenceWhite; value=GetImageProperty(image,"reference-white",exception); if (value != (const char *) NULL) reference_white=StringToDouble(value,(char **) NULL); logmap=(Quantum *) AcquireQuantumMemory((size_t) MaxMap+1UL, sizeof(*logmap)); if (logmap == (Quantum *) NULL) ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", image->filename); black=pow(10.0,(reference_black-reference_white)*(gamma/density)*0.002/ film_gamma); for (i=0; i <= (ssize_t) (reference_black*MaxMap/1024.0); i++) logmap[i]=(Quantum) 0; for ( ; i < (ssize_t) (reference_white*MaxMap/1024.0); i++) logmap[i]=ClampToQuantum(QuantumRange/(1.0-black)* (pow(10.0,(1024.0*i/MaxMap-reference_white)*(gamma/density)*0.002/ film_gamma)-black)); for ( ; i <= (ssize_t) MaxMap; i++) logmap[i]=QuantumRange; if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; register ssize_t x; register Quantum *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=(ssize_t) image->columns; x != 0; x--) { double blue, green, red; red=(double) logmap[ScaleQuantumToMap(GetPixelRed(image,q))]; green=(double) logmap[ScaleQuantumToMap(GetPixelGreen(image,q))]; blue=(double) logmap[ScaleQuantumToMap(GetPixelBlue(image,q))]; SetPixelRed(image,ClampToQuantum(EncodePixelGamma((MagickRealType) red)),q); SetPixelGreen(image,ClampToQuantum(EncodePixelGamma((MagickRealType) green)),q); SetPixelBlue(image,ClampToQuantum(EncodePixelGamma((MagickRealType) blue)),q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); logmap=(Quantum *) RelinquishMagickMemory(logmap); if (SetImageColorspace(image,sRGBColorspace,exception) == MagickFalse) return(MagickFalse); return(status); } case RGBColorspace: case scRGBColorspace: { /* Transform linear RGB to sRGB colorspace. */ if (image->storage_class == PseudoClass) { if (SyncImage(image,exception) == MagickFalse) return(MagickFalse); if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) return(MagickFalse); } image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; register ssize_t x; register Quantum *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=(ssize_t) image->columns; x != 0; x--) { double blue, green, red; red=EncodePixelGamma((MagickRealType) GetPixelRed(image,q)); green=EncodePixelGamma((MagickRealType) GetPixelGreen(image,q)); blue=EncodePixelGamma((MagickRealType) GetPixelBlue(image,q)); SetPixelRed(image,ClampToQuantum(red),q); SetPixelGreen(image,ClampToQuantum(green),q); SetPixelBlue(image,ClampToQuantum(blue),q); q+=GetPixelChannels(image); } sync=SyncCacheViewAuthenticPixels(image_view,exception); if (sync == MagickFalse) status=MagickFalse; } image_view=DestroyCacheView(image_view); if (SetImageColorspace(image,sRGBColorspace,exception) == MagickFalse) return(MagickFalse); return(status); } default: break; } /* Allocate the tables. */ x_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL, sizeof(*x_map)); y_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL, sizeof(*y_map)); z_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL, sizeof(*z_map)); if ((x_map == (TransformPacket *) NULL) || (y_map == (TransformPacket *) NULL) || (z_map == (TransformPacket *) NULL)) { if (z_map != (TransformPacket *) NULL) z_map=(TransformPacket *) RelinquishMagickMemory(z_map); if (y_map != (TransformPacket *) NULL) y_map=(TransformPacket *) RelinquishMagickMemory(y_map); if (x_map != (TransformPacket *) NULL) x_map=(TransformPacket *) RelinquishMagickMemory(x_map); ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed", image->filename); } switch (image->colorspace) { case OHTAColorspace: { /* Initialize OHTA tables: I1 = 0.33333*R+0.33334*G+0.33333*B I2 = 0.50000*R+0.00000*G-0.50000*B I3 =-0.25000*R+0.50000*G-0.25000*B R = I1+1.00000*I2-0.66668*I3 G = I1+0.00000*I2+1.33333*I3 B = I1-1.00000*I2-0.66668*I3 I and Q, normally -0.5 through 0.5, must be normalized to the range 0 through QuantumRange. */ #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=(MagickRealType) (1.0*(double) i); y_map[i].x=(MagickRealType) (0.5*1.00000*(2.0*(double) i-MaxMap)); z_map[i].x=(MagickRealType) (-0.5*0.66668*(2.0*(double) i-MaxMap)); x_map[i].y=(MagickRealType) (1.0*(double) i); y_map[i].y=(MagickRealType) (0.5*0.00000*(2.0*(double) i-MaxMap)); z_map[i].y=(MagickRealType) (0.5*1.33333*(2.0*(double) i-MaxMap)); x_map[i].z=(MagickRealType) (1.0*(double) i); y_map[i].z=(MagickRealType) (-0.5*1.00000*(2.0*(double) i-MaxMap)); z_map[i].z=(MagickRealType) (-0.5*0.66668*(2.0*(double) i-MaxMap)); } break; } case Rec601YCbCrColorspace: { /* Initialize YCbCr tables: R = Y +1.402000*Cr G = Y-0.344136*Cb-0.714136*Cr B = Y+1.772000*Cb Cb and Cr, normally -0.5 through 0.5, must be normalized to the range 0 through QuantumRange. */ #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=0.99999999999914679361*(double) i; y_map[i].x=0.5*(-1.2188941887145875e-06)*(2.00*(double) i-MaxMap); z_map[i].x=0.5*1.4019995886561440468*(2.00*(double) i-MaxMap); x_map[i].y=0.99999975910502514331*(double) i; y_map[i].y=0.5*(-0.34413567816504303521)*(2.00*(double) i-MaxMap); z_map[i].y=0.5*(-0.71413649331646789076)*(2.00*(double) i-MaxMap); x_map[i].z=1.00000124040004623180*(double) i; y_map[i].z=0.5*1.77200006607230409200*(2.00*(double) i-MaxMap); z_map[i].z=0.5*2.1453384174593273e-06*(2.00*(double) i-MaxMap); } break; } case Rec709YCbCrColorspace: { /* Initialize YCbCr tables: R = Y +1.574800*Cr G = Y-0.187324*Cb-0.468124*Cr B = Y+1.855600*Cb Cb and Cr, normally -0.5 through 0.5, must be normalized to the range 0 through QuantumRange. */ #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=(MagickRealType) (1.0*i); y_map[i].x=(MagickRealType) (0.5*0.000000*(2.0*i-MaxMap)); z_map[i].x=(MagickRealType) (0.5*1.574800*(2.0*i-MaxMap)); x_map[i].y=(MagickRealType) (1.0*i); y_map[i].y=(MagickRealType) (0.5*(-0.187324)*(2.0*i-MaxMap)); z_map[i].y=(MagickRealType) (0.5*(-0.468124)*(2.0*i-MaxMap)); x_map[i].z=(MagickRealType) (1.0*i); y_map[i].z=(MagickRealType) (0.5*1.855600*(2.0*i-MaxMap)); z_map[i].z=(MagickRealType) (0.5*0.000000*(2.0*i-MaxMap)); } break; } case YCCColorspace: { /* Initialize YCC tables: R = Y +1.340762*C2 G = Y-0.317038*C1-0.682243*C2 B = Y+1.632639*C1 YCC is scaled by 1.3584. C1 zero is 156 and C2 is at 137. */ #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=(MagickRealType) (1.3584000*(double) i); y_map[i].x=(MagickRealType) 0.0000000; z_map[i].x=(MagickRealType) (1.8215000*(1.0*(double) i-(double) ScaleQuantumToMap(ScaleCharToQuantum(137)))); x_map[i].y=(MagickRealType) (1.3584000*(double) i); y_map[i].y=(MagickRealType) (-0.4302726*(1.0*(double) i-(double) ScaleQuantumToMap(ScaleCharToQuantum(156)))); z_map[i].y=(MagickRealType) (-0.9271435*(1.0*(double) i-(double) ScaleQuantumToMap(ScaleCharToQuantum(137)))); x_map[i].z=(MagickRealType) (1.3584000*(double) i); y_map[i].z=(MagickRealType) (2.2179000*(1.0*(double) i-(double) ScaleQuantumToMap(ScaleCharToQuantum(156)))); z_map[i].z=(MagickRealType) 0.0000000; } break; } default: { /* Linear conversion tables. */ #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) \ magick_threads(image,image,1,1) #endif for (i=0; i <= (ssize_t) MaxMap; i++) { x_map[i].x=(MagickRealType) (1.0*(double) i); y_map[i].x=(MagickRealType) 0.0; z_map[i].x=(MagickRealType) 0.0; x_map[i].y=(MagickRealType) 0.0; y_map[i].y=(MagickRealType) (1.0*(double) i); z_map[i].y=(MagickRealType) 0.0; x_map[i].z=(MagickRealType) 0.0; y_map[i].z=(MagickRealType) 0.0; z_map[i].z=(MagickRealType) (1.0*(double) i); } break; } } /* Convert to sRGB. */ switch (image->storage_class) { case DirectClass: default: { /* Convert DirectClass image. */ image_view=AcquireAuthenticCacheView(image,exception); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y++) { MagickBooleanType sync; PixelInfo pixel; register ssize_t x; register Quantum *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 size_t blue, green, red; red=ScaleQuantumToMap(GetPixelRed(image,q)); green=ScaleQuantumToMap(GetPixelGreen(image,q)); blue=ScaleQuantumToMap(GetPixelBlue(image,q)); pixel.red=x_map[red].x+y_map[green].x+z_map[blue].x; pixel.green=x_map[red].y+y_map[green].y+z_map[blue].y; pixel.blue=x_map[red].z+y_map[green].z+z_map[blue].z; if (image->colorspace == YCCColorspace) { pixel.red=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.red/ (double) MaxMap)]; pixel.green=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.green/ (double) MaxMap)]; pixel.blue=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.blue/ (double) MaxMap)]; } else { pixel.red=(MagickRealType) ScaleMapToQuantum(pixel.red); pixel.green=(MagickRealType) ScaleMapToQuantum(pixel.green); pixel.blue=(MagickRealType) ScaleMapToQuantum(pixel.blue); } SetPixelRed(image,ClampToQuantum(pixel.red),q); SetPixelGreen(image,ClampToQuantum(pixel.green),q); SetPixelBlue(image,ClampToQuantum(pixel.blue),q); q+=GetPixelChannels(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_TransformsRGBImage) #endif proceed=SetImageProgress(image,TransformsRGBImageTag,progress++, image->rows); if (proceed == MagickFalse) status=MagickFalse; } } image_view=DestroyCacheView(image_view); break; } case PseudoClass: { /* Convert PseudoClass image. */ #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,4) shared(status) \ magick_threads(image,image,1,1) #endif for (i=0; i < (ssize_t) image->colors; i++) { PixelInfo pixel; register size_t blue, green, red; red=ScaleQuantumToMap(ClampToQuantum(image->colormap[i].red)); green=ScaleQuantumToMap(ClampToQuantum(image->colormap[i].green)); blue=ScaleQuantumToMap(ClampToQuantum(image->colormap[i].blue)); pixel.red=x_map[red].x+y_map[green].x+z_map[blue].x; pixel.green=x_map[red].y+y_map[green].y+z_map[blue].y; pixel.blue=x_map[red].z+y_map[green].z+z_map[blue].z; if (image->colorspace == YCCColorspace) { pixel.red=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.red/ (double) MaxMap)]; pixel.green=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.green/ (double) MaxMap)]; pixel.blue=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.blue/ (double) MaxMap)]; } else { pixel.red=(MagickRealType) ScaleMapToQuantum(pixel.red); pixel.green=(MagickRealType) ScaleMapToQuantum(pixel.green); pixel.blue=(MagickRealType) ScaleMapToQuantum(pixel.blue); } image->colormap[i].red=(double) ClampToQuantum(pixel.red); image->colormap[i].green=(double) ClampToQuantum(pixel.green); image->colormap[i].blue=(double) ClampToQuantum(pixel.blue); } (void) SyncImage(image,exception); break; } } /* Relinquish resources. */ z_map=(TransformPacket *) RelinquishMagickMemory(z_map); y_map=(TransformPacket *) RelinquishMagickMemory(y_map); x_map=(TransformPacket *) RelinquishMagickMemory(x_map); if (SetImageColorspace(image,sRGBColorspace,exception) == MagickFalse) return(MagickFalse); return(MagickTrue); }