colorspace.c File Reference

#include "magick/studio.h"
#include "magick/attribute.h"
#include "magick/cache.h"
#include "magick/cache-private.h"
#include "magick/cache-view.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/colorspace.h"
#include "magick/colorspace-private.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/enhance.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/gem.h"
#include "magick/gem-private.h"
#include "magick/memory_.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/pixel-private.h"
#include "magick/property.h"
#include "magick/quantize.h"
#include "magick/quantum.h"
#include "magick/resource_.h"
#include "magick/string_.h"
#include "magick/string-private.h"
#include "magick/utility.h"

Include dependency graph for colorspace.c:

Go to the source code of this file.

Data Structures
struct	_TransformPacket

Macros
#define	RGBTransformImageTag   "RGBTransform/Image"
#define	DisplayGamma   (1.0/1.7)
#define	FilmGamma   0.6
#define	ReferenceBlack   95.0
#define	ReferenceWhite   685.0
#define	TransformRGBImageTag   "Transform/Image"

Typedefs
typedef struct _TransformPacket	TransformPacket

Functions
MagickExport ColorspaceType	GetImageColorspaceType (const Image *image, ExceptionInfo *exception)
static void	ConvertRGBToCMY (const Quantum red, const Quantum green, const Quantum blue, double *cyan, double *magenta, double *yellow)
static void	ConvertRGBToLab (const Quantum red, const Quantum green, const Quantum blue, double *L, double *a, double *b)
static void	ConvertXYZToLMS (const double x, const double y, const double z, double *L, double *M, double *S)
static void	ConvertRGBToLMS (const Quantum red, const Quantum green, const Quantum blue, double *L, double *M, double *S)
static void	ConvertRGBToLuv (const Quantum red, const Quantum green, const Quantum blue, double *L, double *u, double *v)
static void	ConvertRGBToxyY (const Quantum red, const Quantum green, const Quantum blue, double *low_x, double *low_y, double *cap_Y)
static void	ConvertRGBToYPbPr (const Quantum red, const Quantum green, const Quantum blue, double *Y, double *Pb, double *Pr)
static void	ConvertRGBToYCbCr (const Quantum red, const Quantum green, const Quantum blue, double *Y, double *Cb, double *Cr)
static void	ConvertRGBToYUV (const Quantum red, const Quantum green, const Quantum blue, double *Y, double *U, double *V)
static void	ConvertRGBToYDbDr (const Quantum red, const Quantum green, const Quantum blue, double *Y, double *Db, double *Dr)
static void	ConvertRGBToYIQ (const Quantum red, const Quantum green, const Quantum blue, double *Y, double *I, double *Q)
MagickExport MagickBooleanType	RGBTransformImage (Image *image, const ColorspaceType colorspace)
MagickExport MagickBooleanType	SetImageColorspace (Image *image, const ColorspaceType colorspace)
MagickExport MagickBooleanType	SetImageGray (Image *image, ExceptionInfo *exception)
MagickExport MagickBooleanType	SetImageMonochrome (Image *image, ExceptionInfo *exception)
MagickExport MagickBooleanType	TransformImageColorspace (Image *image, const ColorspaceType colorspace)
static void	ConvertCMYToRGB (const double cyan, const double magenta, const double yellow, Quantum *red, Quantum *green, Quantum *blue)
static void	ConvertLMSToXYZ (const double L, const double M, const double S, double *X, double *Y, double *Z)
static void	ConvertLMSToRGB (const double L, const double M, const double S, Quantum *red, Quantum *green, Quantum *blue)
static void	ConvertLuvToRGB (const double L, const double u, const double v, Quantum *red, Quantum *green, Quantum *blue)
static ssize_t	RoundToYCC (const MagickRealType value)
static void	ConvertLabToRGB (const double L, const double a, const double b, Quantum *red, Quantum *green, Quantum *blue)
static void	ConvertxyYToRGB (const double low_x, const double low_y, const double cap_Y, Quantum *red, Quantum *green, Quantum *blue)
static void	ConvertYPbPrToRGB (const double Y, const double Pb, const double Pr, Quantum *red, Quantum *green, Quantum *blue)
static void	ConvertYCbCrToRGB (const double Y, const double Cb, const double Cr, Quantum *red, Quantum *green, Quantum *blue)
static void	ConvertYDbDrToRGB (const double Y, const double Db, const double Dr, Quantum *red, Quantum *green, Quantum *blue)
static void	ConvertYIQToRGB (const double Y, const double I, const double Q, Quantum *red, Quantum *green, Quantum *blue)
static void	ConvertYUVToRGB (const double Y, const double U, const double V, Quantum *red, Quantum *green, Quantum *blue)
MagickExport MagickBooleanType	TransformRGBImage (Image *image, const ColorspaceType colorspace)

Macro Definition Documentation

DisplayGamma

#define DisplayGamma   (1.0/1.7)

FilmGamma

#define FilmGamma   0.6

ReferenceBlack

#define ReferenceBlack   95.0

ReferenceWhite

#define ReferenceWhite   685.0

RGBTransformImageTag

#define RGBTransformImageTag   "RGBTransform/Image"

TransformRGBImageTag

#define TransformRGBImageTag   "Transform/Image"

Typedef Documentation

TransformPacket

typedef struct _TransformPacket TransformPacket

Function Documentation

ConvertCMYToRGB()

static void ConvertCMYToRGB ( const double  cyan, const double  magenta, const double  yellow, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 1573 of file colorspace.c.

References ClampToQuantum(), and QuantumRange.

Referenced by TransformRGBImage().

ConvertLabToRGB()

static void ConvertLabToRGB ( const double  L, const double  a, const double  b, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 1622 of file colorspace.c.

References ConvertLabToXYZ(), and ConvertXYZToRGB().

Referenced by TransformRGBImage().

ConvertLMSToRGB()

static void ConvertLMSToRGB ( const double  L, const double  M, const double  S, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 1589 of file colorspace.c.

References ConvertLMSToXYZ(), and ConvertXYZToRGB().

Referenced by TransformRGBImage().

ConvertLMSToXYZ()

static void ConvertLMSToXYZ ( const double  L, const double  M, const double  S, double *  X, double *  Y, double *  Z  )

inlinestatic

Definition at line 1581 of file colorspace.c.

Referenced by ConvertLMSToRGB().

ConvertLuvToRGB()

static void ConvertLuvToRGB ( const double  L, const double  u, const double  v, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 1601 of file colorspace.c.

References ConvertLuvToXYZ(), and ConvertXYZToRGB().

Referenced by TransformRGBImage().

ConvertRGBToCMY()

static void ConvertRGBToCMY ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  cyan, double *  magenta, double *  yellow  )

inlinestatic

Definition at line 162 of file colorspace.c.

References QuantumRange, and QuantumScale.

Referenced by RGBTransformImage().

ConvertRGBToLab()

static void ConvertRGBToLab ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  L, double *  a, double *  b  )

static

Definition at line 170 of file colorspace.c.

References ConvertRGBToXYZ(), and ConvertXYZToLab().

Referenced by RGBTransformImage().

ConvertRGBToLMS()

static void ConvertRGBToLMS ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  L, double *  M, double *  S  )

static

Definition at line 190 of file colorspace.c.

References ConvertRGBToXYZ(), and ConvertXYZToLMS().

Referenced by RGBTransformImage().

ConvertRGBToLuv()

static void ConvertRGBToLuv ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  L, double *  u, double *  v  )

static

Definition at line 202 of file colorspace.c.

References ConvertRGBToXYZ(), and ConvertXYZToLuv().

Referenced by RGBTransformImage().

ConvertRGBToxyY()

static void ConvertRGBToxyY ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  low_x, double *  low_y, double *  cap_Y  )

static

Definition at line 214 of file colorspace.c.

References ConvertRGBToXYZ(), and PerceptibleReciprocal().

Referenced by RGBTransformImage().

ConvertRGBToYCbCr()

static void ConvertRGBToYCbCr ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  Y, double *  Cb, double *  Cr  )

static

Definition at line 238 of file colorspace.c.

References ConvertRGBToYPbPr().

Referenced by RGBTransformImage().

ConvertRGBToYDbDr()

static void ConvertRGBToYDbDr ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  Y, double *  Db, double *  Dr  )

static

Definition at line 252 of file colorspace.c.

References QuantumScale.

Referenced by RGBTransformImage().

ConvertRGBToYIQ()

static void ConvertRGBToYIQ ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  Y, double *  I, double *  Q  )

static

Definition at line 260 of file colorspace.c.

References QuantumScale.

Referenced by RGBTransformImage().

ConvertRGBToYPbPr()

static void ConvertRGBToYPbPr ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  Y, double *  Pb, double *  Pr  )

static

Definition at line 230 of file colorspace.c.

References QuantumScale.

Referenced by ConvertRGBToYCbCr(), and RGBTransformImage().

ConvertRGBToYUV()

static void ConvertRGBToYUV ( const Quantum  red, const Quantum  green, const Quantum  blue, double *  Y, double *  U, double *  V  )

static

Definition at line 244 of file colorspace.c.

References QuantumScale.

Referenced by RGBTransformImage().

ConvertxyYToRGB()

static void ConvertxyYToRGB ( const double  low_x, const double  low_y, const double  cap_Y, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 1634 of file colorspace.c.

References ConvertXYZToRGB(), and PerceptibleReciprocal().

Referenced by TransformRGBImage().

ConvertXYZToLMS()

static void ConvertXYZToLMS ( const double  x, const double  y, const double  z, double *  L, double *  M, double *  S  )

inlinestatic

Definition at line 182 of file colorspace.c.

Referenced by ConvertRGBToLMS().

ConvertYCbCrToRGB()

static void ConvertYCbCrToRGB ( const double  Y, const double  Cb, const double  Cr, Quantum *  red, Quantum *  green, Quantum *  blue  )

static

Definition at line 1661 of file colorspace.c.

References ConvertYPbPrToRGB().

Referenced by TransformRGBImage().

ConvertYDbDrToRGB()

static void ConvertYDbDrToRGB ( const double  Y, const double  Db, const double  Dr, Quantum *  red, Quantum *  green, Quantum *  blue  )

static

Definition at line 1667 of file colorspace.c.

References ClampToQuantum(), and QuantumRange.

Referenced by TransformRGBImage().

ConvertYIQToRGB()

static void ConvertYIQToRGB ( const double  Y, const double  I, const double  Q, Quantum *  red, Quantum *  green, Quantum *  blue  )

static

Definition at line 1678 of file colorspace.c.

References ClampToQuantum(), and QuantumRange.

Referenced by TransformRGBImage().

ConvertYPbPrToRGB()

static void ConvertYPbPrToRGB ( const double  Y, const double  Pb, const double  Pr, Quantum *  red, Quantum *  green, Quantum *  blue  )

static

Definition at line 1650 of file colorspace.c.

References ClampToQuantum(), and QuantumRange.

Referenced by ConvertYCbCrToRGB(), and TransformRGBImage().

ConvertYUVToRGB()

static void ConvertYUVToRGB ( const double  Y, const double  U, const double  V, Quantum *  red, Quantum *  green, Quantum *  blue  )

static

Definition at line 1689 of file colorspace.c.

References ClampToQuantum(), and QuantumRange.

Referenced by TransformRGBImage().

GetImageColorspaceType()

MagickExport ColorspaceType GetImageColorspaceType	(	const Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 112 of file colorspace.c.

References BilevelType, _Image::colorspace, _Image::filename, GetMagickModule, GRAYColorspace, GrayscaleMatteType, GrayscaleType, IdentifyImageType(), IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, _Image::signature, and TraceEvent.

RGBTransformImage()

MagickExport MagickBooleanType RGBTransformImage	(	Image *	image,
		const ColorspaceType	colorspace
	)

Definition at line 268 of file colorspace.c.

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), _MagickPixelPacket::blue, _PixelPacket::blue, ClampToQuantum(), CMYColorspace, CMYKColorspace, _Image::colormap, _Image::colors, ColorSeparationMatteType, ColorSeparationType, _Image::columns, ConvertRGBToCMY(), ConvertRGBToCMYK(), ConvertRGBToHCL(), ConvertRGBToHCLp(), ConvertRGBToHSB(), ConvertRGBToHSI(), ConvertRGBToHSL(), ConvertRGBToHSV(), ConvertRGBToHWB(), ConvertRGBToLab(), ConvertRGBToLCHab(), ConvertRGBToLCHuv(), ConvertRGBToLMS(), ConvertRGBToLuv(), ConvertRGBToxyY(), ConvertRGBToXYZ(), ConvertRGBToYCbCr(), ConvertRGBToYDbDr(), ConvertRGBToYIQ(), ConvertRGBToYPbPr(), ConvertRGBToYUV(), DecodePixelGamma(), DestroyCacheView(), DirectClass, DisplayGamma, _Image::exception, _Image::filename, FilmGamma, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetImageProperty(), GetMagickModule, GetMagickPixelPacket(), GetPixelBlue, GetPixelGreen, GetPixelRed, GRAYColorspace, GrayscaleType, _MagickPixelPacket::green, _PixelPacket::green, HCLColorspace, HCLpColorspace, HSBColorspace, HSIColorspace, HSLColorspace, HSVColorspace, HWBColorspace, IsEventLogging(), LabColorspace, LCHabColorspace, LCHColorspace, LCHuvColorspace, LinearGRAYColorspace, LMSColorspace, LogColorspace, LogMagickEvent(), LuvColorspace, magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, _Image::matte, MaxMap, OHTAColorspace, PerceptibleReciprocal(), _Image::progress_monitor, PseudoClass, QuantumRange, QuantumScale, Rec601LumaColorspace, Rec601YCbCrColorspace, Rec709LumaColorspace, Rec709YCbCrColorspace, _MagickPixelPacket::red, _PixelPacket::red, ReferenceBlack, ReferenceWhite, RelinquishMagickMemory(), ResourceLimitError, RGBColorspace, RGBTransformImageTag, _Image::rows, scRGBColorspace, SetImageColorspace(), SetImageProgress(), SetImageStorageClass(), SetMagickPixelPacket(), SetPixelBlue, SetPixelGray, SetPixelGreen, SetPixelPacket(), SetPixelRed, _Image::signature, sRGBColorspace, _Image::storage_class, StringToDouble(), SyncCacheViewAuthenticPixels(), SyncImage(), ThrowBinaryException, TraceEvent, TransparentColorspace, _Image::type, UndefinedColorspace, _TransformPacket::x, _PrimaryInfo::x, xyYColorspace, XYZColorspace, _TransformPacket::y, _PrimaryInfo::y, YCbCrColorspace, YCCColorspace, YDbDrColorspace, YIQColorspace, YPbPrColorspace, YUVColorspace, _TransformPacket::z, and _PrimaryInfo::z.

Referenced by TransformImageColorspace().

RoundToYCC()

static ssize_t RoundToYCC ( const MagickRealType  value )

inlinestatic

Definition at line 1613 of file colorspace.c.

Referenced by TransformRGBImage().

SetImageColorspace()

MagickExport MagickBooleanType SetImageColorspace	(	Image *	image,
		const ColorspaceType	colorspace
	)

Definition at line 1251 of file colorspace.c.

References _ChromaticityInfo::blue_primary, _Image::chromaticity, _Image::colorspace, _Image::exception, _Image::filename, _Image::gamma, GetMagickModule, GrayscaleType, _ChromaticityInfo::green_primary, IsEventLogging(), IsGrayColorspace(), IsRGBColorspace(), LinearGRAYColorspace, LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, PerceptualIntent, _ChromaticityInfo::red_primary, _Image::rendering_intent, _Image::signature, SyncImagePixelCache(), TraceEvent, _Image::type, UndefinedIntent, _ChromaticityInfo::white_point, _PrimaryInfo::x, xyYColorspace, XYZColorspace, _PrimaryInfo::y, and _PrimaryInfo::z.

Referenced by AnnotateImage(), AppendImages(), BilevelImageChannel(), BlackThresholdImageChannel(), ClutImageChannel(), ColorizeImage(), CombineImages(), CompositeImageChannel(), ConsolidateCMYKImages(), ContrastStretchImageChannel(), DistortImage(), DrawPrimitive(), FloodfillPaintImage(), FrameImage(), GrayscaleImage(), HaldClutImageChannel(), ImportImagePixels(), LevelColorsImageChannel(), ModulateImage(), ProfileImage(), RGBTransformImage(), SeparateImageChannel(), SetImageProperty(), SetPixelCacheVirtualMethod(), ShadowImage(), SolarizeImageChannel(), StereoAnaglyphImage(), TintImage(), TransformImageColorspace(), TransformRGBImage(), and WhiteThresholdImageChannel().

SetImageGray()

MagickExport MagickBooleanType SetImageGray	(	Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 1329 of file colorspace.c.

References AcquireVirtualCacheView(), BilevelType, _Image::colorspace, _Image::columns, DestroyCacheView(), _Image::filename, GetCacheViewVirtualPixels(), GetImageProperty(), GetMagickModule, GRAYColorspace, GrayscaleMatteType, GrayscaleType, IsEventLogging(), IsGrayColorspace(), IsGrayPixel(), IsMonochromePixel(), IssRGBCompatibleColorspace(), IsStringNotFalse(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, _Image::matte, _Image::rows, _Image::signature, SyncImagePixelCache(), TraceEvent, _Image::type, and UndefinedType.

Referenced by ContrastStretchImageChannel(), GetMagickPropertyLetter(), and QuantizeImage().

SetImageMonochrome()

MagickExport MagickBooleanType SetImageMonochrome	(	Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 1423 of file colorspace.c.

References AcquireVirtualCacheView(), BilevelType, _Image::colorspace, _Image::columns, DestroyCacheView(), _Image::exception, _Image::filename, GetCacheViewVirtualPixels(), GetImageProperty(), GetMagickModule, GRAYColorspace, IsEventLogging(), IsGrayColorspace(), IsMonochromeImage(), IsMonochromePixel(), IssRGBCompatibleColorspace(), IsStringNotFalse(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, _Image::rows, _Image::signature, SyncImagePixelCache(), TraceEvent, _Image::type, and UndefinedType.

Referenced by SetGrayscaleImage().

TransformImageColorspace()

MagickExport MagickBooleanType TransformImageColorspace	(	Image *	image,
		const ColorspaceType	colorspace
	)

Definition at line 1510 of file colorspace.c.

References _Image::colorspace, DeleteImageProfile(), _Image::filename, GetMagickModule, IsEventLogging(), IssRGBColorspace(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, RGBTransformImage(), SetImageColorspace(), _Image::signature, TraceEvent, TransformRGBImage(), and UndefinedColorspace.

Referenced by AssignImageColors(), CannyEdgeImage(), ClassifyImageColors(), CombineImages(), ConformMagickPixelPacket(), GetImageChannelPerceptualHash(), SegmentImage(), SelectiveBlurImageChannel(), SetGrayscaleImage(), SetImageBackgroundColor(), SetImageType(), TextureImage(), TransformColorspace(), and VignetteImage().

TransformRGBImage()

MagickExport MagickBooleanType TransformRGBImage	(	Image *	image,
		const ColorspaceType	colorspace
	)

Definition at line 1700 of file colorspace.c.

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), _MagickPixelPacket::blue, _PixelPacket::blue, ClampToQuantum(), CMYColorspace, CMYKColorspace, _Image::colormap, _Image::colors, _Image::columns, ConvertCMYKToRGB(), ConvertCMYToRGB(), ConvertHCLpToRGB(), ConvertHCLToRGB(), ConvertHSBToRGB(), ConvertHSIToRGB(), ConvertHSLToRGB(), ConvertHSVToRGB(), ConvertHWBToRGB(), ConvertLabToRGB(), ConvertLCHabToRGB(), ConvertLCHuvToRGB(), ConvertLMSToRGB(), ConvertLuvToRGB(), ConvertxyYToRGB(), ConvertXYZToRGB(), ConvertYCbCrToRGB(), ConvertYDbDrToRGB(), ConvertYIQToRGB(), ConvertYPbPrToRGB(), ConvertYUVToRGB(), DestroyCacheView(), DirectClass, DisplayGamma, EncodePixelGamma(), _Image::exception, _Image::filename, FilmGamma, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetImageProperty(), GetMagickModule, GetMagickPixelPacket(), GetPixelBlue, GetPixelGreen, GetPixelRed, GRAYColorspace, _MagickPixelPacket::green, _PixelPacket::green, HCLColorspace, HCLpColorspace, HSBColorspace, HSIColorspace, HSLColorspace, HSVColorspace, HWBColorspace, IsEventLogging(), LabColorspace, LCHabColorspace, LCHColorspace, LCHuvColorspace, LinearGRAYColorspace, LMSColorspace, LogColorspace, LogMagickEvent(), LuvColorspace, magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, MaxMap, OHTAColorspace, PerceptibleReciprocal(), _Image::progress_monitor, PseudoClass, QuantumRange, QuantumScale, Rec601LumaColorspace, Rec601YCbCrColorspace, Rec709LumaColorspace, Rec709YCbCrColorspace, _MagickPixelPacket::red, _PixelPacket::red, ReferenceBlack, ReferenceWhite, RelinquishMagickMemory(), ResourceLimitError, RGBColorspace, RoundToYCC(), _Image::rows, scRGBColorspace, SetImageColorspace(), SetImageProgress(), SetImageStorageClass(), SetMagickPixelPacket(), SetPixelBlue, SetPixelGreen, SetPixelPacket(), SetPixelRed, _Image::signature, sRGBColorspace, _Image::storage_class, StringToDouble(), SyncCacheViewAuthenticPixels(), SyncImage(), ThrowBinaryException, TraceEvent, TransformRGBImageTag, _TransformPacket::x, xyYColorspace, XYZColorspace, _TransformPacket::y, YCbCrColorspace, YCCColorspace, YDbDrColorspace, YIQColorspace, YPbPrColorspace, YUVColorspace, and _TransformPacket::z.

Referenced by TransformImageColorspace().