enhance.c File Reference

#include "magick/studio.h"
#include "magick/accelerate-private.h"
#include "magick/artifact.h"
#include "magick/attribute.h"
#include "magick/cache.h"
#include "magick/cache-view.h"
#include "magick/channel.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/colorspace.h"
#include "magick/colorspace-private.h"
#include "magick/composite-private.h"
#include "magick/enhance.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/fx.h"
#include "magick/gem.h"
#include "magick/geometry.h"
#include "magick/histogram.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/memory_.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/opencl.h"
#include "magick/opencl-private.h"
#include "magick/option.h"
#include "magick/pixel-accessor.h"
#include "magick/pixel-private.h"
#include "magick/quantum.h"
#include "magick/quantum-private.h"
#include "magick/resample.h"
#include "magick/resample-private.h"
#include "magick/resource_.h"
#include "magick/statistic.h"
#include "magick/string_.h"
#include "magick/string-private.h"
#include "magick/thread-private.h"
#include "magick/threshold.h"
#include "magick/token.h"
#include "magick/xml-tree.h"

Include dependency graph for enhance.c:

Go to the source code of this file.

Macros
#define	BrightnessContastImageTag   "BrightnessContast/Image"
#define	ColorDecisionListCorrectImageTag   "ColorDecisionList/Image"
#define	ClutImageTag   "Clut/Image"
#define	ContrastImageTag   "Contrast/Image"
#define	MaxRange(color)   ((MagickRealType) ScaleQuantumToMap((Quantum) (color)))
#define	ContrastStretchImageTag   "ContrastStretch/Image"
#define	EnhancePixel(weight)
#define	EnhanceImageTag   "Enhance/Image"
#define	EqualizeImageTag   "Equalize/Image"
#define	GammaImageTag   "Gamma/Image"
#define	GrayscaleImageTag   "Grayscale/Image"
#define	HaldClutImageTag   "Clut/Image"
#define	LevelImageTag   "Level/Image"
#define	LevelizeImageTag   "Levelize/Image"
#define	LevelizeValue(x)
#define	LinearStretchImageTag   "LinearStretch/Image"
#define	ModulateImageTag   "Modulate/Image"
#define	NegateImageTag   "Negate/Image"
#define	Sigmoidal(a, b, x)   ( 1.0/(1.0+exp((a)*((b)-(x)))) )
#define	ScaledSigmoidal(a, b, x)
#define	SigmoidalContrastImageTag   "SigmoidalContrast/Image"

Functions
MagickExport MagickBooleanType	AutoGammaImage (Image *image)
MagickExport MagickBooleanType	AutoGammaImageChannel (Image *image, const ChannelType channel)
MagickExport MagickBooleanType	AutoLevelImage (Image *image)
MagickExport MagickBooleanType	AutoLevelImageChannel (Image *image, const ChannelType channel)
MagickExport MagickBooleanType	BrightnessContrastImage (Image *image, const double brightness, const double contrast)
MagickExport MagickBooleanType	BrightnessContrastImageChannel (Image *image, const ChannelType channel, const double brightness, const double contrast)
MagickExport MagickBooleanType	ColorDecisionListImage (Image *image, const char *color_correction_collection)
MagickExport MagickBooleanType	ClutImage (Image *image, const Image *clut_image)
MagickExport MagickBooleanType	ClutImageChannel (Image *image, const ChannelType channel, const Image *clut_image)
static void	Contrast (const int sign, Quantum *red, Quantum *green, Quantum *blue)
MagickExport MagickBooleanType	ContrastImage (Image *image, const MagickBooleanType sharpen)
MagickExport MagickBooleanType	ContrastStretchImage (Image *image, const char *levels)
MagickExport MagickBooleanType	ContrastStretchImageChannel (Image *image, const ChannelType channel, const double black_point, const double white_point)
MagickExport Image *	EnhanceImage (const Image *image, ExceptionInfo *exception)
MagickExport MagickBooleanType	EqualizeImage (Image *image)
MagickExport MagickBooleanType	EqualizeImageChannel (Image *image, const ChannelType channel)
static double	gamma_pow (const double value, const double gamma)
MagickExport MagickBooleanType	GammaImage (Image *image, const char *level)
MagickExport MagickBooleanType	GammaImageChannel (Image *image, const ChannelType channel, const double gamma)
MagickExport MagickBooleanType	GrayscaleImage (Image *image, const PixelIntensityMethod method)
MagickExport MagickBooleanType	HaldClutImage (Image *image, const Image *hald_image)
MagickExport MagickBooleanType	HaldClutImageChannel (Image *image, const ChannelType channel, const Image *hald_image)
MagickExport MagickBooleanType	LevelImage (Image *image, const char *levels)
static double	LevelPixel (const double black_point, const double white_point, const double gamma, const MagickRealType pixel)
MagickExport MagickBooleanType	LevelImageChannel (Image *image, const ChannelType channel, const double black_point, const double white_point, const double gamma)
MagickExport MagickBooleanType	LevelizeImage (Image *image, const double black_point, const double white_point, const double gamma)
MagickExport MagickBooleanType	LevelizeImageChannel (Image *image, const ChannelType channel, const double black_point, const double white_point, const double gamma)
MagickExport MagickBooleanType	LevelColorsImage (Image *image, const MagickPixelPacket *black_color, const MagickPixelPacket *white_color, const MagickBooleanType invert)
MagickExport MagickBooleanType	LevelColorsImageChannel (Image *image, const ChannelType channel, const MagickPixelPacket *black_color, const MagickPixelPacket *white_color, const MagickBooleanType invert)
MagickExport MagickBooleanType	LinearStretchImage (Image *image, const double black_point, const double white_point)
static void	ModulateHCL (const double percent_hue, const double percent_chroma, const double percent_luma, Quantum *red, Quantum *green, Quantum *blue)
static void	ModulateHCLp (const double percent_hue, const double percent_chroma, const double percent_luma, Quantum *red, Quantum *green, Quantum *blue)
static void	ModulateHSB (const double percent_hue, const double percent_saturation, const double percent_brightness, Quantum *red, Quantum *green, Quantum *blue)
static void	ModulateHSI (const double percent_hue, const double percent_saturation, const double percent_intensity, Quantum *red, Quantum *green, Quantum *blue)
static void	ModulateHSL (const double percent_hue, const double percent_saturation, const double percent_lightness, Quantum *red, Quantum *green, Quantum *blue)
static void	ModulateHSV (const double percent_hue, const double percent_saturation, const double percent_value, Quantum *red, Quantum *green, Quantum *blue)
static void	ModulateHWB (const double percent_hue, const double percent_whiteness, const double percent_blackness, Quantum *red, Quantum *green, Quantum *blue)
static void	ModulateLCHab (const double percent_luma, const double percent_chroma, const double percent_hue, Quantum *red, Quantum *green, Quantum *blue)
static void	ModulateLCHuv (const double percent_luma, const double percent_chroma, const double percent_hue, Quantum *red, Quantum *green, Quantum *blue)
MagickExport MagickBooleanType	ModulateImage (Image *image, const char *modulate)
MagickExport MagickBooleanType	NegateImage (Image *image, const MagickBooleanType grayscale)
MagickExport MagickBooleanType	NegateImageChannel (Image *image, const ChannelType channel, const MagickBooleanType grayscale)
MagickExport MagickBooleanType	NormalizeImage (Image *image)
MagickExport MagickBooleanType	NormalizeImageChannel (Image *image, const ChannelType channel)
static double	InverseScaledSigmoidal (const double a, const double b, const double x)
MagickExport MagickBooleanType	SigmoidalContrastImage (Image *image, const MagickBooleanType sharpen, const char *levels)
MagickExport MagickBooleanType	SigmoidalContrastImageChannel (Image *image, const ChannelType channel, const MagickBooleanType sharpen, const double contrast, const double midpoint)

Macro Definition Documentation

BrightnessContastImageTag

#define BrightnessContastImageTag   "BrightnessContast/Image"

ClutImageTag

#define ClutImageTag   "Clut/Image"

ColorDecisionListCorrectImageTag

#define ColorDecisionListCorrectImageTag   "ColorDecisionList/Image"

ContrastImageTag

#define ContrastImageTag   "Contrast/Image"

ContrastStretchImageTag

#define ContrastStretchImageTag   "ContrastStretch/Image"

EnhanceImageTag

#define EnhanceImageTag   "Enhance/Image"

EnhancePixel

#define EnhancePixel

(

weight

)

Value:

  mean=QuantumScale*((double) GetPixelRed(r)+pixel.red)/2.0; \
  distance=QuantumScale*((double) GetPixelRed(r)-pixel.red); \
  distance_squared=(4.0+mean)*distance*distance; \
  mean=QuantumScale*((double) GetPixelGreen(r)+pixel.green)/2.0; \
  distance=QuantumScale*((double) GetPixelGreen(r)-pixel.green); \
  distance_squared+=(7.0-mean)*distance*distance; \
  mean=QuantumScale*((double) GetPixelBlue(r)+pixel.blue)/2.0; \
  distance=QuantumScale*((double) GetPixelBlue(r)-pixel.blue); \
  distance_squared+=(5.0-mean)*distance*distance; \
  mean=QuantumScale*((double) GetPixelOpacity(r)+pixel.opacity)/2.0; \
  distance=QuantumScale*((double) GetPixelOpacity(r)-pixel.opacity); \
  distance_squared+=(5.0-mean)*distance*distance; \
  if (distance_squared < 0.069) \
    { \
      aggregate.red+=(weight)*GetPixelRed(r); \
      aggregate.green+=(weight)*GetPixelGreen(r); \
      aggregate.blue+=(weight)*GetPixelBlue(r); \
      aggregate.opacity+=(weight)*GetPixelOpacity(r); \
      total_weight+=(weight); \
    } \
  r++;

EqualizeImageTag

#define EqualizeImageTag   "Equalize/Image"

GammaImageTag

#define GammaImageTag   "Gamma/Image"

GrayscaleImageTag

#define GrayscaleImageTag   "Grayscale/Image"

HaldClutImageTag

#define HaldClutImageTag   "Clut/Image"

LevelImageTag

#define LevelImageTag   "Level/Image"

LevelizeImageTag

#define LevelizeImageTag   "Levelize/Image"

LevelizeValue

#define LevelizeValue

(

x

)

Value:

  ClampToQuantum(((MagickRealType) gamma_pow((double) \
  (QuantumScale*(x)),gamma))*(white_point-black_point)+black_point)

LinearStretchImageTag

#define LinearStretchImageTag   "LinearStretch/Image"

MaxRange

#define MaxRange

(

color

)

((MagickRealType) ScaleQuantumToMap((Quantum) (color)))

ModulateImageTag

#define ModulateImageTag   "Modulate/Image"

NegateImageTag

#define NegateImageTag   "Negate/Image"

ScaledSigmoidal

#define ScaledSigmoidal	(		a,
			b,
			x
	)

Value:

  (                    \
  (Sigmoidal((a),(b),(x))-Sigmoidal((a),(b),0.0)) / \
  (Sigmoidal((a),(b),1.0)-Sigmoidal((a),(b),0.0)) )

Definition at line 4315 of file enhance.c.

Sigmoidal

#define Sigmoidal	(		a,
			b,
			x
	)		( 1.0/(1.0+exp((a)*((b)-(x)))) )

Definition at line 4296 of file enhance.c.

SigmoidalContrastImageTag

#define SigmoidalContrastImageTag   "SigmoidalContrast/Image"

Function Documentation

AutoGammaImage()

MagickExport MagickBooleanType AutoGammaImage

(

Image *

image

)

Definition at line 115 of file enhance.c.

References AutoGammaImageChannel(), and DefaultChannels.

AutoGammaImageChannel()

MagickExport MagickBooleanType AutoGammaImageChannel	(	Image *	image,
		const ChannelType	channel
	)

Definition at line 120 of file enhance.c.

References BlueChannel, CMYKColorspace, _Image::colorspace, _Image::exception, GetImageChannelMean(), GreenChannel, IndexChannel, LevelImageChannel(), MagickFalse, MagickTrue, _Image::matte, OpacityChannel, QuantumRange, QuantumScale, RedChannel, and SyncChannels.

Referenced by AutoGammaImage().

AutoLevelImage()

MagickExport MagickBooleanType AutoLevelImage

(

Image *

image

)

Definition at line 221 of file enhance.c.

References AutoLevelImageChannel(), and DefaultChannels.

Referenced by AdaptiveBlurImageChannel(), and AdaptiveSharpenImageChannel().

AutoLevelImageChannel()

MagickExport MagickBooleanType AutoLevelImageChannel	(	Image *	image,
		const ChannelType	channel
	)

Definition at line 226 of file enhance.c.

References MinMaxStretchImage().

Referenced by AutoLevelImage().

BrightnessContrastImage()

MagickExport MagickBooleanType BrightnessContrastImage	(	Image *	image,
		const double	brightness,
		const double	contrast
	)

Definition at line 270 of file enhance.c.

References BrightnessContrastImageChannel(), and DefaultChannels.

BrightnessContrastImageChannel()

MagickExport MagickBooleanType BrightnessContrastImageChannel	(	Image *	image,
		const ChannelType	channel,
		const double	brightness,
		const double	contrast
	)

Definition at line 281 of file enhance.c.

References _Image::exception, _Image::filename, FunctionImageChannel(), GetMagickModule, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickPI, PolynomialFunction, _Image::signature, and TraceEvent.

Referenced by BrightnessContrastImage().

ClutImage()

MagickExport MagickBooleanType ClutImage	(	Image *	image,
		const Image *	clut_image
	)

Definition at line 739 of file enhance.c.

References ClutImageChannel(), and DefaultChannels.

ClutImageChannel()

MagickExport MagickBooleanType ClutImageChannel	(	Image *	image,
		const ChannelType	channel,
		const Image *	clut_image
	)

Definition at line 744 of file enhance.c.

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), ActivateAlphaChannel, adjust(), BlueChannel, ClampPixelBlue, ClampPixelGreen, ClampPixelOpacity, ClampPixelRed, ClampToQuantum(), ClutImageTag, CMYKColorspace, _Image::colorspace, _Image::columns, DestroyCacheView(), DirectClass, _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetMagickPixelPacket(), GetPixelAlpha, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelOpacity, GetPixelRed, GreenChannel, IndexChannel, IntegerInterpolatePixel, _Image::interpolate, InterpolateMagickPixelPacket(), IsEventLogging(), IsGrayColorspace(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickPixelIntensity(), MagickPixelIntensityToQuantum(), MagickTrue, _Image::matte, MaxMap, OpacityChannel, _Image::progress_monitor, RedChannel, RelinquishMagickMemory(), ResourceLimitError, _Image::rows, SetImageAlphaChannel(), SetImageColorspace(), SetImageProgress(), SetImageStorageClass(), SetMagickPixelPacket(), SetPixelAlpha, SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelOpacity, SetPixelRed, _Image::signature, sRGBColorspace, SyncCacheViewAuthenticPixels(), ThrowBinaryException, TraceEvent, and UndefinedInterpolatePixel.

Referenced by ClutImage().

ColorDecisionListImage()

MagickExport MagickBooleanType ColorDecisionListImage	(	Image *	image,
		const char *	color_correction_collection
	)

Definition at line 357 of file enhance.c.

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), _PixelPacket::blue, ClampToQuantum(), ColorDecisionListCorrectImageTag, _Image::colormap, _Image::colors, _Image::columns, _Image::debug, DestroyCacheView(), DestroyXMLTree(), _Image::exception, _Image::filename, GetCacheViewAuthenticPixels(), GetMagickModule, GetNextToken(), GetPixelBlue, GetPixelGreen, GetPixelRed, GetXMLTreeChild(), GetXMLTreeContent(), _PixelPacket::green, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, MaxMap, MaxTextExtent, NewXMLTree(), _Image::progress_monitor, PseudoClass, _PixelPacket::red, RelinquishMagickMemory(), ResourceLimitError, _Image::rows, SetImageProgress(), SetPixelBlue, SetPixelGreen, SetPixelRed, _Image::signature, _Image::storage_class, StringToDouble(), SyncCacheViewAuthenticPixels(), ThrowBinaryException, TraceEvent, and TransformEvent.

Contrast()

static void Contrast ( const int  sign, Quantum *  red, Quantum *  green, Quantum *  blue  )

static

Definition at line 917 of file enhance.c.

References ConvertHSBToRGB(), ConvertRGBToHSB(), and MagickPI.

Referenced by ContrastImage().

ContrastImage()

MagickExport MagickBooleanType ContrastImage	(	Image *	image,
		const MagickBooleanType	sharpen
	)

Definition at line 944 of file enhance.c.

References AcquireAuthenticCacheView(), _PixelPacket::blue, _Image::colormap, _Image::colors, _Image::columns, Contrast(), ContrastImageTag, DestroyCacheView(), _Image::exception, _Image::filename, GetCacheViewAuthenticPixels(), GetMagickModule, GetPixelBlue, GetPixelGreen, GetPixelRed, _PixelPacket::green, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, _Image::progress_monitor, PseudoClass, _PixelPacket::red, _Image::rows, SetImageProgress(), SetPixelBlue, SetPixelGreen, SetPixelRed, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), and TraceEvent.

Referenced by PreviewImage(), and SepiaToneImage().

ContrastStretchImage()

MagickExport MagickBooleanType ContrastStretchImage	(	Image *	image,
		const char *	levels
	)

Definition at line 1092 of file enhance.c.

References _Image::columns, ContrastStretchImageChannel(), DefaultChannels, MagickFalse, ParseGeometry(), PercentValue, QuantumRange, RhoValue, _Image::rows, and SigmaValue.

ContrastStretchImageChannel()

MagickExport MagickBooleanType ContrastStretchImageChannel	(	Image *	image,
		const ChannelType	channel,
		const double	black_point,
		const double	white_point
	)

Definition at line 1130 of file enhance.c.

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), _MagickPixelPacket::blue, _PixelPacket::blue, _QuantumPixelPacket::blue, BlueChannel, ClampToQuantum(), CMYKColorspace, _Image::colormap, _Image::colors, _Image::colorspace, _Image::columns, ContrastStretchImageTag, DestroyCacheView(), DirectClass, _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetCacheViewVirtualPixels(), GetMagickModule, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelIntensity(), GetPixelOpacity, GetPixelRed, GRAYColorspace, _MagickPixelPacket::green, _PixelPacket::green, _QuantumPixelPacket::green, GreenChannel, _MagickPixelPacket::index, _QuantumPixelPacket::index, IndexChannel, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, MaxMap, MaxRange, _MagickPixelPacket::opacity, _PixelPacket::opacity, _QuantumPixelPacket::opacity, OpacityChannel, _Image::progress_monitor, PseudoClass, QuantumRange, _MagickPixelPacket::red, _PixelPacket::red, _QuantumPixelPacket::red, RedChannel, RelinquishMagickMemory(), ResourceLimitError, _Image::rows, SetImageColorspace(), SetImageGray(), SetImageProgress(), SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelOpacity, SetPixelRed, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), SyncChannels, ThrowBinaryException, and TraceEvent.

Referenced by ContrastStretchImage(), and NormalizeImageChannel().

EnhanceImage()

MagickExport Image * EnhanceImage	(	const Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 1580 of file enhance.c.

References AcquireAuthenticCacheView(), _MagickPixelPacket::blue, CloneImage(), _Image::columns, DestroyCacheView(), DestroyImage(), DirectClass, EnhanceImageTag, EnhancePixel, _Image::exception, _Image::filename, GetCacheViewVirtualPixels(), GetMagickModule, _MagickPixelPacket::green, InheritException(), IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickEpsilon, MagickFalse, MagickTrue, _MagickPixelPacket::opacity, _Image::progress_monitor, QueueCacheViewAuthenticPixels(), _MagickPixelPacket::red, _Image::rows, SetImageProgress(), SetImageStorageClass(), SetPixelBlue, SetPixelGreen, SetPixelOpacity, SetPixelRed, _ExceptionInfo::signature, _Image::signature, SyncCacheViewAuthenticPixels(), and TraceEvent.

EqualizeImage()

MagickExport MagickBooleanType EqualizeImage

(

Image *

image

)

Definition at line 1781 of file enhance.c.

References DefaultChannels, and EqualizeImageChannel().

EqualizeImageChannel()

MagickExport MagickBooleanType EqualizeImageChannel	(	Image *	image,
		const ChannelType	channel
	)

Definition at line 1786 of file enhance.c.

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), AcquireVirtualCacheView(), _MagickPixelPacket::blue, _PixelPacket::blue, _QuantumPixelPacket::blue, BlueChannel, ClampToQuantum(), CMYKColorspace, _Image::colormap, _Image::colors, _Image::colorspace, _Image::columns, DestroyCacheView(), EqualizeImageTag, _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetCacheViewVirtualIndexQueue(), GetCacheViewVirtualPixels(), GetMagickModule, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelIntensity(), GetPixelOpacity, GetPixelRed, _MagickPixelPacket::green, _PixelPacket::green, _QuantumPixelPacket::green, GreenChannel, _MagickPixelPacket::index, _QuantumPixelPacket::index, IndexChannel, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, MaxMap, _MagickPixelPacket::opacity, _PixelPacket::opacity, _QuantumPixelPacket::opacity, OpacityChannel, _Image::progress_monitor, PseudoClass, _MagickPixelPacket::red, _PixelPacket::red, _QuantumPixelPacket::red, RedChannel, RelinquishMagickMemory(), ResourceLimitError, _Image::rows, SetImageProgress(), SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelOpacity, SetPixelRed, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), SyncChannels, ThrowBinaryException, and TraceEvent.

Referenced by EmbossImage(), and EqualizeImage().

gamma_pow()

static double gamma_pow ( const double  value, const double  gamma  )

inlinestatic

Definition at line 2121 of file enhance.c.

Referenced by GammaImageChannel(), and LevelPixel().

GammaImage()

MagickExport MagickBooleanType GammaImage	(	Image *	image,
		const char *	level
	)

Definition at line 2126 of file enhance.c.

References _MagickPixelPacket::blue, BlueChannel, _Image::filename, GammaImageChannel(), GetMagickModule, _MagickPixelPacket::green, GreenChannel, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, ParseGeometry(), _MagickPixelPacket::red, RedChannel, _GeometryInfo::rho, RhoValue, _GeometryInfo::sigma, SigmaValue, _Image::signature, TraceEvent, _GeometryInfo::xi, and XiValue.

GammaImageChannel()

MagickExport MagickBooleanType GammaImageChannel	(	Image *	image,
		const ChannelType	channel,
		const double	gamma
	)

Definition at line 2168 of file enhance.c.

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), _PixelPacket::blue, BlueChannel, ClampToQuantum(), CMYKColorspace, _Image::colormap, _Image::colors, _Image::colorspace, _Image::columns, DestroyCacheView(), _Image::exception, _Image::filename, _Image::gamma, gamma_pow(), GammaImageTag, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetPixelAlpha, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelOpacity, GetPixelRed, _PixelPacket::green, GreenChannel, IndexChannel, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, _Image::matte, MaxMap, _PixelPacket::opacity, OpacityChannel, PerceptibleReciprocal(), _Image::progress_monitor, PseudoClass, QuantumRange, QuantumScale, _PixelPacket::red, RedChannel, RelinquishMagickMemory(), ResourceLimitError, _Image::rows, SetImageProgress(), SetPixelAlpha, SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelOpacity, SetPixelRed, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), SyncChannels, ThrowBinaryException, and TraceEvent.

Referenced by GammaImage(), and PreviewImage().

GrayscaleImage()

MagickExport MagickBooleanType GrayscaleImage	(	Image *	image,
		const PixelIntensityMethod	method
	)

Definition at line 2408 of file enhance.c.

References AcquireAuthenticCacheView(), AveragePixelIntensityMethod, BrightnessPixelIntensityMethod, ClampToQuantum(), _Image::colorspace, _Image::columns, DecodePixelGamma(), DestroyCacheView(), DirectClass, EncodePixelGamma(), _Image::exception, _Image::filename, GetCacheViewAuthenticPixels(), GetMagickModule, GRAYColorspace, GrayscaleImageTag, GrayscaleType, _Image::intensity, IsEventLogging(), LightnessPixelIntensityMethod, LinearGRAYColorspace, LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickMax, MagickMin, MagickTrue, MSPixelIntensityMethod, _Image::progress_monitor, PseudoClass, QuantumRange, Rec601LumaPixelIntensityMethod, Rec601LuminancePixelIntensityMethod, Rec709LumaPixelIntensityMethod, Rec709LuminancePixelIntensityMethod, RGBColorspace, RMSPixelIntensityMethod, _Image::rows, SetImageColorspace(), SetImageProgress(), SetImageStorageClass(), SetPixelGray, _Image::signature, sRGBColorspace, _Image::storage_class, SyncCacheViewAuthenticPixels(), SyncImage(), TraceEvent, and _Image::type.

Referenced by CharcoalImage().

HaldClutImage()

MagickExport MagickBooleanType HaldClutImage	(	Image *	image,
		const Image *	hald_image
	)

Definition at line 2629 of file enhance.c.

References DefaultChannels, and HaldClutImageChannel().

HaldClutImageChannel()

MagickExport MagickBooleanType HaldClutImageChannel	(	Image *	image,
		const ChannelType	channel,
		const Image *	hald_image
	)

Definition at line 2635 of file enhance.c.

References AcquireAuthenticCacheView(), _MagickPixelPacket::blue, BlueChannel, ClampToQuantum(), CMYKColorspace, _Image::colorspace, _Image::columns, DestroyCacheView(), DirectClass, _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetMagickPixelPacket(), GetPixelBlue, GetPixelGreen, GetPixelRed, _MagickPixelPacket::green, GreenChannel, HaldClutImageTag, _MagickPixelPacket::index, IndexChannel, _Image::interpolate, InterpolateMagickPixelPacket(), IsEventLogging(), IsGrayColorspace(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickMin, MagickPixelCompositeAreaBlend(), MagickTrue, _Image::matte, NearestNeighborInterpolatePixel, _MagickPixelPacket::opacity, OpacityChannel, OpaqueAlphaChannel, _Image::progress_monitor, QuantumScale, _MagickPixelPacket::red, RedChannel, _Image::rows, SetImageAlphaChannel(), SetImageColorspace(), SetImageProgress(), SetImageStorageClass(), SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelOpacity, SetPixelRed, _Image::signature, sRGBColorspace, SyncCacheViewAuthenticPixels(), TraceEvent, and UndefinedInterpolatePixel.

Referenced by HaldClutImage().

InverseScaledSigmoidal()

static double InverseScaledSigmoidal ( const double  a, const double  b, const double  x  )

inlinestatic

Definition at line 4327 of file enhance.c.

References MagickEpsilon, and Sigmoidal.

Referenced by SigmoidalContrastImageChannel().

LevelColorsImage()

MagickExport MagickBooleanType LevelColorsImage	(	Image *	image,
		const MagickPixelPacket *	black_color,
		const MagickPixelPacket *	white_color,
		const MagickBooleanType	invert
	)

Definition at line 3301 of file enhance.c.

References DefaultChannels, and LevelColorsImageChannel().

Referenced by SetImageAlphaChannel().

LevelColorsImageChannel()

MagickExport MagickBooleanType LevelColorsImageChannel	(	Image *	image,
		const ChannelType	channel,
		const MagickPixelPacket *	black_color,
		const MagickPixelPacket *	white_color,
		const MagickBooleanType	invert
	)

Definition at line 3313 of file enhance.c.

References _MagickPixelPacket::blue, BlueChannel, CMYKColorspace, _Image::colorspace, _MagickPixelPacket::colorspace, _Image::filename, GetMagickModule, _MagickPixelPacket::green, GreenChannel, _MagickPixelPacket::index, IndexChannel, IsEventLogging(), IsGrayColorspace(), LevelImageChannel(), LevelizeImageChannel(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, _Image::matte, _MagickPixelPacket::opacity, OpacityChannel, _MagickPixelPacket::red, RedChannel, SetImageColorspace(), _Image::signature, sRGBColorspace, and TraceEvent.

Referenced by LevelColorsImage(), and LevelImageColors().

LevelImage()

MagickExport MagickBooleanType LevelImage	(	Image *	image,
		const char *	levels
	)

Definition at line 2862 of file enhance.c.

References AspectValue, _Image::columns, DefaultChannels, LevelImageChannel(), LevelizeImage(), MagickFalse, ParseGeometry(), PercentValue, QuantumRange, _GeometryInfo::rho, RhoValue, _Image::rows, _GeometryInfo::sigma, SigmaValue, _GeometryInfo::xi, and XiValue.

LevelImageChannel()

MagickExport MagickBooleanType LevelImageChannel	(	Image *	image,
		const ChannelType	channel,
		const double	black_point,
		const double	white_point,
		const double	gamma
	)

Definition at line 2961 of file enhance.c.

References AcquireAuthenticCacheView(), _PixelPacket::blue, BlueChannel, ClampImage(), ClampToQuantum(), CMYKColorspace, _Image::colormap, _Image::colors, _Image::colorspace, _Image::columns, DestroyCacheView(), _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetPixelAlpha, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelRed, _PixelPacket::green, GreenChannel, IndexChannel, IsEventLogging(), LevelImageTag, LevelPixel(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, _Image::matte, _PixelPacket::opacity, OpacityChannel, _Image::progress_monitor, PseudoClass, QuantumRange, _PixelPacket::red, RedChannel, _Image::rows, SetImageProgress(), SetPixelAlpha, SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelRed, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), and TraceEvent.

Referenced by AutoGammaImageChannel(), LevelColorsImageChannel(), LevelImage(), LinearStretchImage(), and MinMaxStretchImage().

LevelizeImage()

MagickExport MagickBooleanType LevelizeImage	(	Image *	image,
		const double	black_point,
		const double	white_point,
		const double	gamma
	)

Definition at line 3129 of file enhance.c.

References DefaultChannels, and LevelizeImageChannel().

Referenced by LevelImage().

LevelizeImageChannel()

MagickExport MagickBooleanType LevelizeImageChannel	(	Image *	image,
		const ChannelType	channel,
		const double	black_point,
		const double	white_point,
		const double	gamma
	)

Definition at line 3140 of file enhance.c.

References AcquireAuthenticCacheView(), _PixelPacket::blue, BlueChannel, CMYKColorspace, _Image::colormap, _Image::colors, _Image::colorspace, _Image::columns, DestroyCacheView(), _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetPixelAlpha, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelRed, _PixelPacket::green, GreenChannel, IndexChannel, IsEventLogging(), LevelizeImageTag, LevelizeValue, LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, _Image::matte, _PixelPacket::opacity, OpacityChannel, _Image::progress_monitor, PseudoClass, QuantumRange, _PixelPacket::red, RedChannel, _Image::rows, SetImageProgress(), SetPixelAlpha, SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelRed, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), and TraceEvent.

Referenced by LevelColorsImageChannel(), and LevelizeImage().

LevelPixel()

static double LevelPixel ( const double  black_point, const double  white_point, const double  gamma, const MagickRealType  pixel  )

inlinestatic

Definition at line 2948 of file enhance.c.

References gamma_pow(), PerceptibleReciprocal(), and QuantumRange.

Referenced by LevelImageChannel().

LinearStretchImage()

MagickExport MagickBooleanType LinearStretchImage	(	Image *	image,
		const double	black_point,
		const double	white_point
	)

Definition at line 3403 of file enhance.c.

References AcquireQuantumMemory(), ClampToQuantum(), _Image::columns, DefaultChannels, _Image::exception, _Image::filename, GetPixelIntensity(), GetVirtualPixels(), LevelImageChannel(), magick_restrict, MagickCoreSignature, MaxMap, RelinquishMagickMemory(), ResourceLimitError, _Image::rows, _Image::signature, and ThrowBinaryException.

ModulateHCL()

static void ModulateHCL ( const double  percent_hue, const double  percent_chroma, const double  percent_luma, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3508 of file enhance.c.

References ConvertHCLToRGB(), and ConvertRGBToHCL().

Referenced by ModulateImage().

ModulateHCLp()

static void ModulateHCLp ( const double  percent_hue, const double  percent_chroma, const double  percent_luma, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3527 of file enhance.c.

References ConvertHCLpToRGB(), and ConvertRGBToHCLp().

Referenced by ModulateImage().

ModulateHSB()

static void ModulateHSB ( const double  percent_hue, const double  percent_saturation, const double  percent_brightness, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3546 of file enhance.c.

References ConvertHSBToRGB(), and ConvertRGBToHSB().

Referenced by ModulateImage().

ModulateHSI()

static void ModulateHSI ( const double  percent_hue, const double  percent_saturation, const double  percent_intensity, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3565 of file enhance.c.

References ConvertHSIToRGB(), and ConvertRGBToHSI().

Referenced by ModulateImage().

ModulateHSL()

static void ModulateHSL ( const double  percent_hue, const double  percent_saturation, const double  percent_lightness, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3584 of file enhance.c.

References ConvertHSLToRGB(), and ConvertRGBToHSL().

Referenced by ModulateImage().

ModulateHSV()

static void ModulateHSV ( const double  percent_hue, const double  percent_saturation, const double  percent_value, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3603 of file enhance.c.

References ConvertHSVToRGB(), and ConvertRGBToHSV().

Referenced by ModulateImage().

ModulateHWB()

static void ModulateHWB ( const double  percent_hue, const double  percent_whiteness, const double  percent_blackness, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3622 of file enhance.c.

References ConvertHWBToRGB(), and ConvertRGBToHWB().

Referenced by ModulateImage().

ModulateImage()

MagickExport MagickBooleanType ModulateImage	(	Image *	image,
		const char *	modulate
	)

Definition at line 3679 of file enhance.c.

References AcquireAuthenticCacheView(), _PixelPacket::blue, _Image::colormap, _Image::colors, _Image::colorspace, _Image::columns, DestroyCacheView(), _Image::exception, _Image::filename, GetCacheViewAuthenticPixels(), GetImageArtifact(), GetMagickModule, GetPixelBlue, GetPixelGreen, GetPixelRed, _PixelPacket::green, HCLColorspace, HCLpColorspace, HSBColorspace, HSIColorspace, HSLColorspace, HSVColorspace, HWBColorspace, IsEventLogging(), IssRGBCompatibleColorspace(), LCHabColorspace, LCHColorspace, LCHuvColorspace, LogMagickEvent(), magick_restrict, MagickColorspaceOptions, MagickCoreSignature, MagickFalse, MagickTrue, ModulateHCL(), ModulateHCLp(), ModulateHSB(), ModulateHSI(), ModulateHSL(), ModulateHSV(), ModulateHWB(), ModulateImageTag, ModulateLCHab(), ModulateLCHuv(), ParseCommandOption(), ParseGeometry(), _Image::progress_monitor, PseudoClass, _PixelPacket::red, _GeometryInfo::rho, RhoValue, _Image::rows, SetImageColorspace(), SetImageProgress(), SetPixelBlue, SetPixelGreen, SetPixelRed, _GeometryInfo::sigma, SigmaValue, _Image::signature, sRGBColorspace, _Image::storage_class, SyncCacheViewAuthenticPixels(), TraceEvent, UndefinedColorspace, _GeometryInfo::xi, and XiValue.

Referenced by PreviewImage().

ModulateLCHab()

static void ModulateLCHab ( const double  percent_luma, const double  percent_chroma, const double  percent_hue, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3641 of file enhance.c.

References ConvertLCHabToRGB(), and ConvertRGBToLCHab().

Referenced by ModulateImage().

ModulateLCHuv()

static void ModulateLCHuv ( const double  percent_luma, const double  percent_chroma, const double  percent_hue, Quantum *  red, Quantum *  green, Quantum *  blue  )

inlinestatic

Definition at line 3660 of file enhance.c.

References ConvertLCHuvToRGB(), and ConvertRGBToLCHuv().

Referenced by ModulateImage().

NegateImage()

MagickExport MagickBooleanType NegateImage	(	Image *	image,
		const MagickBooleanType	grayscale
	)

Definition at line 3973 of file enhance.c.

References DefaultChannels, and NegateImageChannel().

Referenced by CharcoalImage(), ClipImagePath(), DrawClippingMask(), DrawCompositeMask(), and SketchImage().

NegateImageChannel()

MagickExport MagickBooleanType NegateImageChannel	(	Image *	image,
		const ChannelType	channel,
		const MagickBooleanType	grayscale
	)

Definition at line 3983 of file enhance.c.

References AcquireAuthenticCacheView(), _PixelPacket::blue, BlueChannel, CMYKColorspace, _Image::colormap, _Image::colors, _Image::colorspace, _Image::columns, DefaultChannels, DestroyCacheView(), _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelOpacity, GetPixelRed, _PixelPacket::green, GreenChannel, IndexChannel, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, NegateImageTag, OpacityChannel, _Image::progress_monitor, PseudoClass, QuantumRange, _PixelPacket::red, RedChannel, _Image::rows, SetImageProgress(), SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelOpacity, SetPixelRed, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), and TraceEvent.

Referenced by MontageImageList(), and NegateImage().

NormalizeImage()

MagickExport MagickBooleanType NormalizeImage

(

Image *

image

)

Definition at line 4206 of file enhance.c.

References DefaultChannels, and NormalizeImageChannel().

Referenced by CharcoalImage(), SepiaToneImage(), SetImageType(), and SketchImage().

NormalizeImageChannel()

MagickExport MagickBooleanType NormalizeImageChannel	(	Image *	image,
		const ChannelType	channel
	)

Definition at line 4215 of file enhance.c.

References _Image::columns, ContrastStretchImageChannel(), and _Image::rows.

Referenced by NormalizeImage().

SigmoidalContrastImage()

MagickExport MagickBooleanType SigmoidalContrastImage	(	Image *	image,
		const MagickBooleanType	sharpen,
		const char *	levels
	)

Definition at line 4354 of file enhance.c.

References DefaultChannels, ParseGeometry(), PercentValue, QuantumRange, _GeometryInfo::rho, _GeometryInfo::sigma, SigmaValue, and SigmoidalContrastImageChannel().

SigmoidalContrastImageChannel()

MagickExport MagickBooleanType SigmoidalContrastImageChannel	(	Image *	image,
		const ChannelType	channel,
		const MagickBooleanType	sharpen,
		const double	contrast,
		const double	midpoint
	)

Definition at line 4376 of file enhance.c.

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), _PixelPacket::blue, BlueChannel, ClampToQuantum(), CMYKColorspace, _Image::colormap, _Image::colors, _Image::colorspace, _Image::columns, DestroyCacheView(), _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelOpacity, GetPixelRed, _PixelPacket::green, GreenChannel, IndexChannel, InverseScaledSigmoidal(), IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickEpsilon, MagickFalse, MagickTrue, MaxMap, _PixelPacket::opacity, OpacityChannel, _Image::progress_monitor, PseudoClass, QuantumScale, _PixelPacket::red, RedChannel, RelinquishMagickMemory(), ResourceLimitError, _Image::rows, ScaledSigmoidal, SetImageProgress(), SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelOpacity, SetPixelRed, SigmoidalContrastImageTag, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), ThrowBinaryException, and TraceEvent.

Referenced by SigmoidalContrastImage().