% MagickCore Image Colorspace Methods %
% %
% Software Design %
-% John Cristy %
+% Cristy %
% July 1992 %
% %
% %
-% Copyright 1999-2013 ImageMagick Studio LLC, a non-profit organization %
+% 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 %
%
*/
+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
- l,
- m,
- s;
+ X,
+ Y,
+ Z;
- /*
- Convert XYZ to LMS colorspace.
- */
- assert(L != (double *) NULL);
- assert(M != (double *) NULL);
- assert(S != (double *) NULL);
- 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;
- *L=QuantumRange*l;
- *M=QuantumRange*m;
- *S=QuantumRange*s;
+ 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)
{
- /*
- Convert RGB to YPbPr colorspace.
- */
- assert(Y != (double *) NULL);
- assert(Pb != (double *) NULL);
- assert(Pr != (double *) NULL);
- *Y=0.298839*QuantumScale*red+0.586811*QuantumScale*green+0.114350*
- QuantumScale*blue;
- *Pb=(-0.1687367)*QuantumScale*red-0.331264*QuantumScale*green+0.5*
- QuantumScale*blue;
- *Pr=0.5*QuantumScale*red-0.418688*QuantumScale*green-0.081312*
- QuantumScale*blue;
+ *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)
{
- /*
- Convert RGB to -YCbCr colorspace.
- */
- assert(Y != (double *) NULL);
- assert(Cb != (double *) NULL);
- assert(Cr != (double *) NULL);
ConvertRGBToYPbPr(red,green,blue,Y,Cb,Cr);
- *Cb+=0.5;
- *Cr+=0.5;
+}
+
+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,
progress=0;
switch (colorspace)
{
- case CMYColorspace:
- {
- /*
- Convert RGB to CMY 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
- cyan,
- magenta,
- yellow;
-
- cyan=(MagickRealType) GetPixelCyan(image,q);
- magenta=(MagickRealType) GetPixelMagenta(image,q);
- yellow=(MagickRealType) GetPixelYellow(image,q);
- SetPixelCyan(image,ClampToQuantum(QuantumRange-cyan),q);
- SetPixelMagenta(image,ClampToQuantum(QuantumRange-magenta),q);
- SetPixelYellow(image,ClampToQuantum(QuantumRange-yellow),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 CMYKColorspace:
{
PixelInfo
image->type=GrayscaleType;
return(status);
}
+ case CMYColorspace:
case HCLColorspace:
case HCLpColorspace:
case HSBColorspace:
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.
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);
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);
return(MagickFalse);
return(status);
}
- case LabColorspace:
+ 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 image from sRGB to Lab.
+ Transform RGB to Log colorspace.
*/
- if (image->storage_class == PseudoClass)
- {
- if (SyncImage(image,exception) == MagickFalse)
- return(MagickFalse);
- if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
- return(MagickFalse);
- }
+ 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) \
status=MagickFalse;
continue;
}
- for (x=0; x < (ssize_t) image->columns; x++)
+ for (x=(ssize_t) image->columns; x != 0; x--)
{
double
- a,
- b,
blue,
green,
- L,
- red,
- X,
- Y,
- Z;
+ red;
- red=DecodePixelGamma((MagickRealType) GetPixelRed(image,q));
- green=DecodePixelGamma((MagickRealType) GetPixelGreen(image,q));
- blue=DecodePixelGamma((MagickRealType) GetPixelBlue(image,q));
- ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
- ConvertXYZToLab(X,Y,Z,&L,&a,&b);
- SetPixelRed(image,ClampToQuantum(QuantumRange*L),q);
- SetPixelGreen(image,ClampToQuantum(QuantumRange*a),q);
- SetPixelBlue(image,ClampToQuantum(QuantumRange*b),q);
+ 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);
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
+ logmap=(Quantum *) RelinquishMagickMemory(logmap);
if (SetImageColorspace(image,colorspace,exception) == MagickFalse)
return(MagickFalse);
return(status);
}
- case LCHColorspace:
- case LCHabColorspace:
+ case RGBColorspace:
+ case scRGBColorspace:
{
/*
- Transform image from sRGB to LCHab.
+ Transform image from sRGB to linear RGB.
*/
if (image->storage_class == PseudoClass)
{
{
double
blue,
- chroma,
green,
- hue,
- luma,
red;
- red=(double) GetPixelRed(image,q);
- green=(double) GetPixelGreen(image,q);
- blue=(double) GetPixelBlue(image,q);
- ConvertRGBToLCHab(red,green,blue,&luma,&chroma,&hue);
- SetPixelRed(image,ClampToQuantum(QuantumRange*luma),q);
- SetPixelGreen(image,ClampToQuantum(QuantumRange*chroma),q);
- SetPixelBlue(image,ClampToQuantum(QuantumRange*hue),q);
+ 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);
return(MagickFalse);
return(status);
}
- case LCHuvColorspace:
+ 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:
{
/*
- Transform image from sRGB to LCHuv.
+ 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.
*/
- 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);
+ 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) shared(status) \
- magick_threads(image,image,image->rows,1)
+ #pragma omp parallel for schedule(static,4) \
+ magick_threads(image,image,1,1)
#endif
- for (y=0; y < (ssize_t) image->rows; y++)
+ for (i=0; i <= (ssize_t) MaxMap; i++)
{
- MagickBooleanType
- sync;
+ 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):
- register ssize_t
- x;
+ 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
- register Quantum
- *restrict q;
+ 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):
- 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,
- chroma,
- green,
- hue,
- luma,
- red;
+ 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
- red=(double) GetPixelRed(image,q);
- green=(double) GetPixelGreen(image,q);
- blue=(double) GetPixelBlue(image,q);
- ConvertRGBToLCHuv(red,green,blue,&luma,&chroma,&hue);
- SetPixelRed(image,ClampToQuantum(QuantumRange*luma),q);
- SetPixelGreen(image,ClampToQuantum(QuantumRange*chroma),q);
- SetPixelBlue(image,ClampToQuantum(QuantumRange*hue),q);
- q+=GetPixelChannels(image);
- }
- sync=SyncCacheViewAuthenticPixels(image_view,exception);
- if (sync == MagickFalse)
- status=MagickFalse;
+ 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);
}
- image_view=DestroyCacheView(image_view);
- if (SetImageColorspace(image,colorspace,exception) == MagickFalse)
- return(MagickFalse);
- return(status);
+ break;
}
- case LMSColorspace:
+ case YCCColorspace:
{
/*
- Transform image from sRGB to LMS.
+ 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.
*/
- 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) \
MagickBooleanType
sync;
- register ssize_t
- x;
+ 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,
}
for (x=0; x < (ssize_t) image->columns; x++)
{
- double
- blue,
- green,
- L,
- M,
- red,
- S,
- X,
- Y,
- Z;
-
- red=DecodePixelGamma((MagickRealType) GetPixelRed(image,q));
- green=DecodePixelGamma((MagickRealType) GetPixelGreen(image,q));
- blue=DecodePixelGamma((MagickRealType) GetPixelBlue(image,q));
- ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
- ConvertXYZToLMS(X,Y,Z,&L,&M,&S);
- SetPixelRed(image,ClampToQuantum(QuantumRange*L),q);
- SetPixelGreen(image,ClampToQuantum(QuantumRange*M),q);
- SetPixelBlue(image,ClampToQuantum(QuantumRange*S),q);
+ 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);
- if (SetImageColorspace(image,colorspace,exception) == MagickFalse)
- return(MagickFalse);
- return(status);
+ break;
}
- case LogColorspace:
+ case PseudoClass:
{
-#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;
+ register unsigned int
+ blue,
+ green,
+ red;
/*
- Transform RGB to Log colorspace.
+ Convert PseudoClass image.
*/
- 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++)
+ for (i=0; i < (ssize_t) image->colors; i++)
{
- 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;
+ PixelInfo
+ pixel;
- red=(double) GetPixelRed(image,q);
- green=(double) GetPixelGreen(image,q);
- blue=(double) 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;
+ 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);
}
- image_view=DestroyCacheView(image_view);
- logmap=(Quantum *) RelinquishMagickMemory(logmap);
- if (SetImageColorspace(image,colorspace,exception) == MagickFalse)
- return(MagickFalse);
- return(status);
+ (void) SyncImage(image,exception);
+ break;
}
- case LuvColorspace:
- {
- /*
- Transform image from sRGB to Luv.
- */
- 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;
+ }
+ /*
+ 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);
+}
+\f
+/*
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %
+% %
+% %
+% 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;
- 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,
- L,
- red,
- u,
- v,
- X,
- Y,
- Z;
+ MagickBooleanType
+ status;
- red=DecodePixelGamma((MagickRealType) GetPixelRed(image,q));
- green=DecodePixelGamma((MagickRealType) GetPixelGreen(image,q));
- blue=DecodePixelGamma((MagickRealType) GetPixelBlue(image,q));
- ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
- ConvertXYZToLuv(X,Y,Z,&L,&u,&v);
- SetPixelRed(image,ClampToQuantum(QuantumRange*L),q);
- SetPixelGreen(image,ClampToQuantum(QuantumRange*u),q);
- SetPixelBlue(image,ClampToQuantum(QuantumRange*v),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 RGBColorspace:
- case scRGBColorspace:
+ 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)
{
- /*
- 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++)
+ 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
{
- 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->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;
}
- image_view=DestroyCacheView(image_view);
- if (SetImageColorspace(image,colorspace,exception) == MagickFalse)
- return(MagickFalse);
- return(status);
- }
- case XYZColorspace:
- {
- /*
- Transform image from sRGB to XYZ.
- */
- 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;
+ status=SyncImagePixelCache(image,exception);
+ image->type=type;
+ return(status);
+}
+\f
+/*
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %
+% %
+% %
+% 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;
- register ssize_t
- x;
+ 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);
+}
+\f
+/*
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %
+% %
+% %
++ 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.
+%
+*/
- register Quantum
- *restrict q;
+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);
+}
- 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;
+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;
+}
- red=DecodePixelGamma((MagickRealType) GetPixelRed(image,q));
- green=DecodePixelGamma((MagickRealType) GetPixelGreen(image,q));
- blue=DecodePixelGamma((MagickRealType) GetPixelBlue(image,q));
- ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
- 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);
- }
- 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:
+static inline void ConvertLMSToRGB(const double L,const double M,
+ const double S,double *red,double *green,double *blue)
+{
+ double
+ X,
+ Y,
+ Z;
- 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
+ ConvertLMSToXYZ(L,M,S,&X,&Y,&Z);
+ ConvertXYZToRGB(X,Y,Z,red,green,blue);
+}
- 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:
- case YCbCrColorspace:
- {
- /*
- Initialize YCbCr tables (ITU-R BT.601):
+static inline void ConvertLuvToRGB(const double L,const double u,
+ const double v,double *red,double *green,double *blue)
+{
+ double
+ X,
+ Y,
+ Z;
- 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
+ ConvertLuvToXYZ(100.0*L,354.0*u-134.0,262.0*v-140.0,&X,&Y,&Z);
+ ConvertXYZToRGB(X,Y,Z,red,green,blue);
+}
- 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):
+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));
+}
- Y = 0.212600*R+0.715200*G+0.072200*B
- Cb= -0.114572*R-0.385428*G+0.500000*B
- Cr= 0.500000*R-0.454153*G-0.045847*B
+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)));
+}
- 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) (0.212600*(double) i);
- y_map[i].x=(MagickRealType) (0.715200*(double) i);
- z_map[i].x=(MagickRealType) (0.072200*(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:
+static inline void ConvertLabToRGB(const double L,const double a,
+ const double b,double *red,double *green,double *blue)
+{
+ double
+ X,
+ Y,
+ Z;
- 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
+ ConvertLabToXYZ(100.0*L,255.0*(a-0.5),255.0*(b-0.5),&X,&Y,&Z);
+ ConvertXYZToRGB(X,Y,Z,red,green,blue);
+}
- 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;
- }
- case YIQColorspace:
- {
- /*
- Initialize YIQ tables:
+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));
+}
- Y = 0.298839*R+0.586811*G+0.114350*B
- I = 0.595716*R-0.274453*G-0.321263*B
- Q = 0.211456*R-0.522591*G+0.311135*B
+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);
+}
- 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) (0.298839*(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) (0.595716*(double) i);
- y_map[i].y=(MagickRealType) (-0.274453*(double) i);
- z_map[i].y=(MagickRealType) (-0.321263*(double) i);
- x_map[i].z=(MagickRealType) (0.211456*(double) i);
- y_map[i].z=(MagickRealType) (-0.522591*(double) i);
- z_map[i].z=(MagickRealType) (0.311135*(double) i);
- }
- break;
- }
- case YPbPrColorspace:
- {
- /*
- Initialize YPbPr tables (ITU-R BT.601):
+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));
+}
- Y = 0.2988390*R+0.5868110*G+0.1143500*B
- Pb= -0.1687367*R-0.3312640*G+0.5000000*B
- Pr= 0.5000000*R-0.4186880*G-0.0813120*B
+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));
+}
- Pb and Pr, 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 YUVColorspace:
- {
- /*
- Initialize YUV tables:
+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));
+}
- Y = 0.298839*R+0.586811*G+0.114350*B
- U = -0.147130*R-0.288860*G+0.436000*B
- V = 0.615000*R-0.514990*G-0.100010*B
+static MagickBooleanType TransformsRGBImage(Image *image,
+ ExceptionInfo *exception)
+{
+#define TransformsRGBImageTag "Transform/Image"
- U and V, normally -0.5 through 0.5, are normalized to the range 0
- through QuantumRange. Note that U = 0.493*(B-Y), V = 0.877*(R-Y).
- */
- 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) (-0.147130*(double) i);
- y_map[i].y=(MagickRealType) (-0.288860*(double) i);
- z_map[i].y=(MagickRealType) (0.436000*(double) i);
- x_map[i].z=(MagickRealType) (0.615000*(double) i);
- y_map[i].z=(MagickRealType) (-0.514990*(double) i);
- z_map[i].z=(MagickRealType) (-0.100001*(double) i);
- }
- 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);
-}
-\f
-/*
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% %
-% %
-% 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)
-{
- if (image->colorspace == colorspace)
- return(MagickTrue);
- image->colorspace=colorspace;
- image->rendering_intent=UndefinedIntent;
- image->gamma=1.000;
- (void) ResetMagickMemory(&image->chromaticity,0,sizeof(image->chromaticity));
- if (IsGrayColorspace(colorspace) != MagickFalse)
- {
- if ((image->intensity != Rec601LuminancePixelIntensityMethod) &&
- (image->intensity != Rec709LuminancePixelIntensityMethod) &&
- (image->intensity != UndefinedPixelIntensityMethod))
- image->gamma=1.000/2.200;
- image->type=GrayscaleType;
- }
- else
- if (IssRGBColorspace(colorspace) != MagickFalse)
- image->gamma=1.000/2.200;
- if (image->gamma == (1.000/2.200))
- {
- image->rendering_intent=PerceptualIntent;
- image->gamma=1.000/2.200;
- 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;
- }
- if (IsGrayColorspace(colorspace) != MagickFalse)
- image->type=GrayscaleType;
- return(SyncImagePixelCache(image,exception));
-}
-\f
-/*
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% %
-% %
-% 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 (colorspace == UndefinedColorspace)
- return(SetImageColorspace(image,colorspace,exception));
- if (image->colorspace == colorspace)
- return(MagickTrue); /* same colorspace: no op */
- /*
- 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);
-}
-\f
-/*
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% %
-% %
-+ 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 ConvertLMSToXYZ(const double L,const double M,const double S,
- double *X,double *Y,double *Z)
-{
- double
- l,
- m,
- s;
-
- assert(X != (double *) NULL);
- assert(Y != (double *) NULL);
- assert(Z != (double *) NULL);
- l=QuantumScale*L;
- m=QuantumScale*M;
- s=QuantumScale*S;
- *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 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 void ConvertYPbPrToRGB(const double Y,const double Pb,const double Pr,
- double *red,double *green,double *blue)
-{
- /*
- Convert YPbPr to RGB colorspace.
- */
- assert(red != (double *) NULL);
- assert(green != (double *) NULL);
- assert(blue != (double *) NULL);
- *red=QuantumRange*(0.99999999999914679361*Y-1.2188941887145875e-06*Pb+
- 1.4019995886561440468*Pr);
- *green=QuantumRange*(0.99999975910502514331*Y-0.34413567816504303521*Pb-
- 0.71413649331646789076*Pr);
- *blue=QuantumRange*(1.00000124040004623180*Y+1.77200006607230409200*Pb+
- 2.1453384174593273e-06*Pr);
-}
-
-static void ConvertYCbCrToRGB(const double Y,const double Cb,
- const double Cr,double *red,double *green,double *blue)
-{
- /*
- Convert -YCbCr to RGB colorspace.
- */
- assert(red != (double *) NULL);
- assert(green != (double *) NULL);
- assert(blue != (double *) NULL);
- ConvertYPbPrToRGB(Y,Cb-0.5,Cr-0.5,red,green,blue);
-}
-
-static MagickBooleanType TransformsRGBImage(Image *image,
- ExceptionInfo *exception)
-{
-#define TransformsRGBImageTag "Transform/Image"
-
- static const float
- YCCMap[1389] =
+ 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,
0.877522f, 0.878242f, 0.878963f, 0.879683f, 0.880403f, 0.881124f,
0.881844f, 0.882565f, 0.883285f, 0.884006f, 0.884726f, 0.885447f,
0.886167f, 0.886888f, 0.887608f, 0.888329f, 0.889049f, 0.889769f,
- 0.890490f, 0.891210f, 0.891931f, 0.892651f, 0.893372f, 0.894092f,
- 0.894813f, 0.895533f, 0.896254f, 0.896974f, 0.897695f, 0.898415f,
- 0.899135f, 0.899856f, 0.900576f, 0.901297f, 0.902017f, 0.902738f,
- 0.903458f, 0.904179f, 0.904899f, 0.905620f, 0.906340f, 0.907061f,
- 0.907781f, 0.908501f, 0.909222f, 0.909942f, 0.910663f, 0.911383f,
- 0.912104f, 0.912824f, 0.913545f, 0.914265f, 0.914986f, 0.915706f,
- 0.916427f, 0.917147f, 0.917867f, 0.918588f, 0.919308f, 0.920029f,
- 0.920749f, 0.921470f, 0.922190f, 0.922911f, 0.923631f, 0.924352f,
- 0.925072f, 0.925793f, 0.926513f, 0.927233f, 0.927954f, 0.928674f,
- 0.929395f, 0.930115f, 0.930836f, 0.931556f, 0.932277f, 0.932997f,
- 0.933718f, 0.934438f, 0.935158f, 0.935879f, 0.936599f, 0.937320f,
- 0.938040f, 0.938761f, 0.939481f, 0.940202f, 0.940922f, 0.941643f,
- 0.942363f, 0.943084f, 0.943804f, 0.944524f, 0.945245f, 0.945965f,
- 0.946686f, 0.947406f, 0.948127f, 0.948847f, 0.949568f, 0.950288f,
- 0.951009f, 0.951729f, 0.952450f, 0.953170f, 0.953891f, 0.954611f,
- 0.955331f, 0.956052f, 0.956772f, 0.957493f, 0.958213f, 0.958934f,
- 0.959654f, 0.960375f, 0.961095f, 0.961816f, 0.962536f, 0.963256f,
- 0.963977f, 0.964697f, 0.965418f, 0.966138f, 0.966859f, 0.967579f,
- 0.968300f, 0.969020f, 0.969741f, 0.970461f, 0.971182f, 0.971902f,
- 0.972622f, 0.973343f, 0.974063f, 0.974784f, 0.975504f, 0.976225f,
- 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 CMYColorspace:
- {
- /*
- Transform image from CMY 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
- cyan,
- magenta,
- yellow;
-
- cyan=(MagickRealType) (QuantumRange-GetPixelCyan(image,q));
- magenta=(MagickRealType) (QuantumRange-GetPixelMagenta(image,q));
- yellow=(MagickRealType) (QuantumRange-GetPixelYellow(image,q));
- SetPixelCyan(image,ClampToQuantum(cyan),q);
- SetPixelMagenta(image,ClampToQuantum(magenta),q);
- SetPixelYellow(image,ClampToQuantum(yellow),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 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--)
- {
- double
- gray;
-
- gray=EncodePixelGamma((MagickRealType) GetPixelGray(image,q));
- 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 HCLColorspace:
- case HCLpColorspace:
- case HSBColorspace:
- case HSIColorspace:
- case HSLColorspace:
- case HSVColorspace:
- case HWBColorspace:
- {
- /*
- 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 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;
- }
- default:
- 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 LabColorspace:
- {
- /*
- Transform image from Lab 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;
+ 0.890490f, 0.891210f, 0.891931f, 0.892651f, 0.893372f, 0.894092f,
+ 0.894813f, 0.895533f, 0.896254f, 0.896974f, 0.897695f, 0.898415f,
+ 0.899135f, 0.899856f, 0.900576f, 0.901297f, 0.902017f, 0.902738f,
+ 0.903458f, 0.904179f, 0.904899f, 0.905620f, 0.906340f, 0.907061f,
+ 0.907781f, 0.908501f, 0.909222f, 0.909942f, 0.910663f, 0.911383f,
+ 0.912104f, 0.912824f, 0.913545f, 0.914265f, 0.914986f, 0.915706f,
+ 0.916427f, 0.917147f, 0.917867f, 0.918588f, 0.919308f, 0.920029f,
+ 0.920749f, 0.921470f, 0.922190f, 0.922911f, 0.923631f, 0.924352f,
+ 0.925072f, 0.925793f, 0.926513f, 0.927233f, 0.927954f, 0.928674f,
+ 0.929395f, 0.930115f, 0.930836f, 0.931556f, 0.932277f, 0.932997f,
+ 0.933718f, 0.934438f, 0.935158f, 0.935879f, 0.936599f, 0.937320f,
+ 0.938040f, 0.938761f, 0.939481f, 0.940202f, 0.940922f, 0.941643f,
+ 0.942363f, 0.943084f, 0.943804f, 0.944524f, 0.945245f, 0.945965f,
+ 0.946686f, 0.947406f, 0.948127f, 0.948847f, 0.949568f, 0.950288f,
+ 0.951009f, 0.951729f, 0.952450f, 0.953170f, 0.953891f, 0.954611f,
+ 0.955331f, 0.956052f, 0.956772f, 0.957493f, 0.958213f, 0.958934f,
+ 0.959654f, 0.960375f, 0.961095f, 0.961816f, 0.962536f, 0.963256f,
+ 0.963977f, 0.964697f, 0.965418f, 0.966138f, 0.966859f, 0.967579f,
+ 0.968300f, 0.969020f, 0.969741f, 0.970461f, 0.971182f, 0.971902f,
+ 0.972622f, 0.973343f, 0.974063f, 0.974784f, 0.975504f, 0.976225f,
+ 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
+ };
- register Quantum
- *restrict q;
+ CacheView
+ *image_view;
- 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
- a,
- b,
- blue,
- green,
- L,
- red,
- X,
- Y,
- Z;
+ MagickBooleanType
+ status;
- L=QuantumScale*GetPixelRed(image,q);
- a=QuantumScale*GetPixelGreen(image,q);
- b=QuantumScale*GetPixelBlue(image,q);
- ConvertLabToXYZ(L,a,b,&X,&Y,&Z);
- ConvertXYZToRGB(X,Y,Z,&red,&green,&blue);
- SetPixelRed(image,ClampToQuantum(EncodePixelGamma(red)),q);
- SetPixelGreen(image,ClampToQuantum(EncodePixelGamma(green)),q);
- SetPixelBlue(image,ClampToQuantum(EncodePixelGamma(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 LCHColorspace:
- case LCHabColorspace:
- {
- /*
- Transform image from LCHab 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;
+ MagickOffsetType
+ progress;
- register ssize_t
- x;
+ register ssize_t
+ i;
- register Quantum
- *restrict q;
+ ssize_t
+ y;
- 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,
- chroma,
- green,
- hue,
- luma,
- red;
+ TransformPacket
+ *y_map,
+ *x_map,
+ *z_map;
- luma=(double) (QuantumScale*GetPixelRed(image,q));
- chroma=(double) (QuantumScale*GetPixelGreen(image,q));
- hue=(double) (QuantumScale*GetPixelBlue(image,q));
- ConvertLCHabToRGB(luma,chroma,hue,&red,&green,&blue);
- SetPixelRed(image,ClampToQuantum(EncodePixelGamma(red)),q);
- SetPixelGreen(image,ClampToQuantum(EncodePixelGamma(green)),q);
- SetPixelBlue(image,ClampToQuantum(EncodePixelGamma(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 LCHuvColorspace:
+ 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:
{
- /*
- Transform image from LCHuv 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,
- chroma,
- green,
- hue,
- luma,
- red;
+ PixelInfo
+ zero;
- luma=(double) (QuantumScale*GetPixelRed(image,q));
- chroma=(double) (QuantumScale*GetPixelGreen(image,q));
- hue=(double) (QuantumScale*GetPixelBlue(image,q));
- ConvertLCHuvToRGB(luma,chroma,hue,&red,&green,&blue);
- SetPixelRed(image,ClampToQuantum(EncodePixelGamma(red)),q);
- SetPixelGreen(image,ClampToQuantum(EncodePixelGamma(green)),q);
- SetPixelBlue(image,ClampToQuantum(EncodePixelGamma(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 LMSColorspace:
- {
/*
- Transform image from LMS to sRGB.
+ Transform image from CMYK to sRGB.
*/
if (image->storage_class == PseudoClass)
{
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) \
MagickBooleanType
sync;
+ PixelInfo
+ pixel;
+
register ssize_t
x;
status=MagickFalse;
continue;
}
+ pixel=zero;
for (x=0; x < (ssize_t) image->columns; x++)
{
- double
- blue,
- green,
- L,
- M,
- red,
- S,
- X,
- Y,
- Z;
-
- L=QuantumScale*GetPixelRed(image,q);
- M=QuantumScale*GetPixelGreen(image,q);
- S=QuantumScale*GetPixelBlue(image,q);
- ConvertLMSToXYZ(L,M,S,&X,&Y,&Z);
- ConvertXYZToRGB(X,Y,Z,&red,&green,&blue);
- SetPixelRed(image,ClampToQuantum(EncodePixelGamma(red)),q);
- SetPixelGreen(image,ClampToQuantum(EncodePixelGamma(green)),q);
- SetPixelBlue(image,ClampToQuantum(EncodePixelGamma(blue)),q);
+ GetPixelInfoPixel(image,q,&pixel);
+ ConvertCMYKToRGB(&pixel);
+ SetPixelInfoPixel(image,&pixel,q);
q+=GetPixelChannels(image);
}
sync=SyncCacheViewAuthenticPixels(image_view,exception);
return(MagickFalse);
return(status);
}
- case LogColorspace:
+ case GRAYColorspace:
{
- const char
- *value;
-
- double
- black,
- density,
- film_gamma,
- gamma,
- reference_black,
- reference_white;
-
- Quantum
- *logmap;
-
/*
- Transform Log to sRGB colorspace.
+ Transform linear GRAY 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)
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) \
}
for (x=(ssize_t) image->columns; x != 0; x--)
{
- double
- blue,
- green,
- red;
+ MagickRealType
+ gray;
- red=(double) logmap[ScaleQuantumToMap(GetPixelRed(image,q))];
- green=(double) logmap[ScaleQuantumToMap(GetPixelGreen(image,q))];
- blue=(double) logmap[ScaleQuantumToMap(GetPixelBlue(image,q))];
- SetPixelRed(image,ClampToQuantum(red),q);
- SetPixelGreen(image,ClampToQuantum(green),q);
- SetPixelBlue(image,ClampToQuantum(blue),q);
+ 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);
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
- logmap=(Quantum *) RelinquishMagickMemory(logmap);
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 Luv to sRGB.
+ Transform image from source colorspace to sRGB.
*/
if (image->storage_class == PseudoClass)
{
double
blue,
green,
- L,
red,
- u,
- v,
X,
Y,
Z;
- L=QuantumScale*GetPixelRed(image,q);
- u=QuantumScale*GetPixelGreen(image,q);
- v=QuantumScale*GetPixelBlue(image,q);
- ConvertLuvToXYZ(L,u,v,&X,&Y,&Z);
- ConvertXYZToRGB(X,Y,Z,&red,&green,&blue);
- SetPixelRed(image,ClampToQuantum(EncodePixelGamma(red)),q);
- SetPixelGreen(image,ClampToQuantum(EncodePixelGamma(green)),q);
- SetPixelBlue(image,ClampToQuantum(EncodePixelGamma(blue)),q);
+ 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);
return(MagickFalse);
return(status);
}
- case RGBColorspace:
- case scRGBColorspace:
+ case LogColorspace:
{
+ const char
+ *value;
+
+ double
+ black,
+ density,
+ film_gamma,
+ gamma,
+ reference_black,
+ reference_white;
+
+ Quantum
+ *logmap;
+
/*
- Transform linear RGB to sRGB colorspace.
+ 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)
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);
+ 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);
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
+ logmap=(Quantum *) RelinquishMagickMemory(logmap);
if (SetImageColorspace(image,sRGBColorspace,exception) == MagickFalse)
return(MagickFalse);
return(status);
}
- case XYZColorspace:
+ case RGBColorspace:
+ case scRGBColorspace:
{
/*
- Transform image from XYZ to sRGB.
+ Transform linear RGB to sRGB colorspace.
*/
if (image->storage_class == PseudoClass)
{
status=MagickFalse;
continue;
}
- for (x=0; x < (ssize_t) image->columns; x++)
+ for (x=(ssize_t) image->columns; x != 0; x--)
{
double
blue,
green,
- red,
- X,
- Y,
- Z;
+ red;
- X=QuantumScale*GetPixelRed(image,q);
- Y=QuantumScale*GetPixelGreen(image,q);
- Z=QuantumScale*GetPixelBlue(image,q);
- ConvertXYZToRGB(X,Y,Z,&red,&green,&blue);
- SetPixelRed(image,ClampToQuantum(EncodePixelGamma(red)),q);
- SetPixelGreen(image,ClampToQuantum(EncodePixelGamma(green)),q);
- SetPixelBlue(image,ClampToQuantum(EncodePixelGamma(blue)),q);
+ 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);
/*
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
break;
}
case Rec601YCbCrColorspace:
- case YCbCrColorspace:
{
/*
Initialize YCbCr tables:
}
break;
}
- case YIQColorspace:
- {
- /*
- Initialize YIQ tables:
-
- R = Y+0.95620*I+0.62140*Q
- G = Y-0.27270*I-0.64680*Q
- B = Y-1.10370*I+1.70060*Q
-
- 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=1.0*(double) i;
- y_map[i].x=0.5*0.9562957197589482261*(2.00000*(double) i-MaxMap);
- z_map[i].x=0.5*0.6210244164652610754*(2.00000*(double) i-MaxMap);
- x_map[i].y=1.0*(double) i;
- y_map[i].y=0.5*(-0.2721220993185104464)*(2.00000*(double) i-MaxMap);
- z_map[i].y=0.5*(-0.6473805968256950427)*(2.00000*(double) i-MaxMap);
- x_map[i].z=1.0*(double) i;
- y_map[i].z=0.5*(-1.1069890167364901945)*(2.00000*(double) i-MaxMap);
- z_map[i].z=0.5*1.7046149983646481374*(2.00000*(double) i-MaxMap);
- }
- break;
- }
- case YPbPrColorspace:
- {
- /*
- Initialize YPbPr tables:
-
- R = Y +1.402000*C2
- G = Y-0.344136*C1+0.714136*C2
- B = Y+1.772000*C1
-
- Pb and Pr, 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)*(2.0*(double) i-MaxMap);
- z_map[i].x=0.5*1.4019995886561440468*(2.0*(double) i-MaxMap);
- x_map[i].y=0.99999975910502514331*(double) i;
- y_map[i].y=0.5*(-0.34413567816504303521)*(2.0*(double) i-MaxMap);
- z_map[i].y=0.5*(-0.71413649331646789076)*(2.0*(double) i-MaxMap);
- x_map[i].z=1.00000124040004623180*(double) i;
- y_map[i].z=0.5*1.77200006607230409200*(2.0*(double) i-MaxMap);
- z_map[i].z=0.5*2.1453384174593273e-06*(2.0*(double) i-MaxMap);
- }
- break;
- }
- case YUVColorspace:
- {
- /*
- Initialize YUV tables:
-
- R = Y +1.13983*V
- G = Y-0.39464*U-0.58060*V
- B = Y+2.03211*U
-
- U and V, 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=1.0*(double) i;
- y_map[i].x=0.5*(-3.945707070708279e-05)*(2.0*(double) i-MaxMap);
- z_map[i].x=0.5*1.1398279671717170825*(2.0*(double) i-MaxMap);
- x_map[i].y=1.0*(double) i;
- y_map[i].y=0.5*(-0.3946101641414141437)*(2.0*(double) i-MaxMap);
- z_map[i].y=0.5*(-0.5805003156565656797)*(2.0*(double) i-MaxMap);
- x_map[i].z=1.0*(double) i;
- y_map[i].z=0.5*2.0319996843434342537*(2.0*(double) i-MaxMap);
- z_map[i].z=0.5*(-4.813762626262513e-04)*(2.0*(double) i-MaxMap);
- }
- break;
- }
default:
{
/*
projects / imagemagick / blobdiff