%
*/
+static inline void ConvertRGBToCMY(const double red,const double green,
+ const double blue,double *cyan,double *magenta,double *yellow)
+{
+ /*
+ Convert RGB to CMY colorspace.
+ */
+ *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)
{
/*
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;
/*
Convert RGB to YIQ colorspace.
*/
- assert(Y != (double *) NULL);
- assert(I != (double *) NULL);
- assert(Q != (double *) NULL);
*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;
/*
Convert RGB to YPbPr colorspace.
*/
- assert(Y != (double *) NULL);
- assert(Pb != (double *) NULL);
- assert(Pr != (double *) NULL);
*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;
/*
Convert RGB to YCbCr colorspace.
*/
- assert(Y != (double *) NULL);
- assert(Cb != (double *) NULL);
- assert(Cr != (double *) NULL);
ConvertRGBToYPbPr(red,green,blue,Y,Cb,Cr);
}
/*
Convert RGB to YUV colorspace.
*/
- assert(Y != (double *) NULL);
- assert(U != (double *) NULL);
- assert(V != (double *) NULL);
*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;
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:
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);
%
*/
+static inline void ConvertCMYToRGB(const double cyan,const double magenta,
+ const double yellow,double *red,double *green,double *blue)
+{
+ /*
+ Convert CMY to RGB colorspace.
+ */
+ *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)
{
- assert(X != (double *) NULL);
- assert(Y != (double *) NULL);
- assert(Z != (double *) NULL);
*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;
/*
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-0.5)+
1.4019995886561440468*(Pr-0.5));
*green=QuantumRange*(0.99999975910502514331*Y-0.34413567816504303521*(Pb-0.5)-
/*
Convert YCbCr to RGB colorspace.
*/
- assert(red != (double *) NULL);
- assert(green != (double *) NULL);
- assert(blue != (double *) NULL);
ConvertYPbPrToRGB(Y,Cb,Cr,red,green,blue);
}
/*
Convert YIQ to RGB colorspace.
*/
- assert(red != (double *) NULL);
- assert(green != (double *) NULL);
- assert(blue != (double *) NULL);
*red=QuantumRange*(Y+0.9562957197589482261*(I-0.5)+0.6210244164652610754*
(Q-0.5));
*green=QuantumRange*(Y-0.2721220993185104464*(I-0.5)-0.6473805968256950427*
/*
Convert YUV to RGB colorspace.
*/
- assert(red != (double *) NULL);
- assert(green != (double *) NULL);
- assert(blue != (double *) NULL);
*red=QuantumRange*(Y-3.945707070708279e-05*(U-0.5)+1.1398279671717170825*
(V-0.5));
*green=QuantumRange*(Y-0.3946101641414141437*(U-0.5)-0.5805003156565656797*
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
return(MagickFalse);
return(status);
}
+ case CMYColorspace:
case HCLColorspace:
case HCLpColorspace:
case HSBColorspace:
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);
/*
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
projects / imagemagick / commitdiff