channel.c File Reference

#include "magick/studio.h"
#include "magick/cache-private.h"
#include "magick/channel.h"
#include "magick/color-private.h"
#include "magick/colorspace-private.h"
#include "magick/composite-private.h"
#include "magick/exception-private.h"
#include "magick/enhance.h"
#include "magick/image.h"
#include "magick/list.h"
#include "magick/log.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/option.h"
#include "magick/pixel-accessor.h"
#include "magick/resource_.h"
#include "magick/string-private.h"
#include "magick/thread-private.h"
#include "magick/token.h"
#include "magick/utility.h"
#include "magick/version.h"

Include dependency graph for channel.c:

Go to the source code of this file.

Macros
#define	CombineImageTag   "Combine/Image"
#define	SeparateImageTag   "Separate/Image"

Functions
MagickExport Image *	CombineImages (const Image *image, const ChannelType channel, ExceptionInfo *exception)
MagickExport MagickBooleanType	GetImageAlphaChannel (const Image *image)
MagickExport Image *	SeparateImage (const Image *image, const ChannelType channel, ExceptionInfo *exception)
MagickExport MagickBooleanType	SeparateImageChannel (Image *image, const ChannelType channel)
MagickExport Image *	SeparateImages (const Image *image, const ChannelType channel, ExceptionInfo *exception)
MagickExport MagickBooleanType	SetImageAlphaChannel (Image *image, const AlphaChannelType alpha_type)

Macro Definition Documentation

CombineImageTag

#define CombineImageTag   "Combine/Image"

SeparateImageTag

#define SeparateImageTag   "Separate/Image"

Function Documentation

CombineImages()

MagickExport Image * CombineImages	(	const Image *	image,
		const ChannelType	channel,
		ExceptionInfo *	exception
	)

Definition at line 93 of file channel.c.

References AcquireAuthenticCacheView(), AcquireVirtualCacheView(), BlueChannel, ClampToQuantum(), CloneImage(), CMYKColorspace, _Image::colorspace, _Image::columns, CombineImageTag, DestroyCacheView(), DestroyImage(), DirectClass, _Image::exception, _Image::filename, _Image::gamma, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetCacheViewVirtualPixels(), GetMagickModule, GetNextImageInList(), GetPixelIntensity(), GreenChannel, IndexChannel, InheritException(), IsEventLogging(), IsGrayColorspace(), IssRGBCompatibleColorspace(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickEpsilon, MagickFalse, MagickTrue, _Image::matte, OpacityChannel, OptionError, _Image::progress_monitor, RedChannel, RGBColorspace, _Image::rows, SetImageBackgroundColor(), SetImageColorspace(), SetImageProgress(), SetImageStorageClass(), SetPixelAlpha, SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelRed, _ExceptionInfo::signature, _Image::signature, sRGBColorspace, SyncCacheViewAuthenticPixels(), ThrowImageException, TraceEvent, and TransformImageColorspace().

GetImageAlphaChannel()

MagickExport MagickBooleanType GetImageAlphaChannel

(

const Image *

image

)

Definition at line 317 of file channel.c.

References GetMagickModule, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, _Image::matte, _Image::signature, and TraceEvent.

SeparateImage()

MagickExport Image * SeparateImage	(	const Image *	image,
		const ChannelType	channel,
		ExceptionInfo *	exception
	)

Definition at line 356 of file channel.c.

References CloneImage(), DestroyImage(), _Image::filename, GetMagickModule, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, SeparateImageChannel(), _ExceptionInfo::signature, _Image::signature, and TraceEvent.

SeparateImageChannel()

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

Definition at line 383 of file channel.c.

References AcquireAuthenticCacheView(), BlackChannel, BlueChannel, ClampToQuantum(), CMYKColorspace, _Image::colorspace, _Image::columns, DestroyCacheView(), DirectClass, _Image::exception, _Image::filename, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetPixelAlpha, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelIntensity(), GetPixelOpacity, GetPixelRed, GrayChannels, GRAYColorspace, GreenChannel, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, _Image::matte, OpacityChannel, OpaqueAlphaChannel, _Image::progress_monitor, PseudoClass, RedChannel, _Image::rows, SeparateImageTag, SetImageAlphaChannel(), SetImageColorspace(), SetImageProgress(), SetImageStorageClass(), SetPixelAlpha, SetPixelBlue, SetPixelGreen, SetPixelRed, _Image::signature, _Image::storage_class, SyncCacheViewAuthenticPixels(), TraceEvent, and TrueAlphaChannel.

Referenced by ChannelImage(), DistortResizeImage(), DrawClippingMask(), DrawCompositeMask(), SeparateImage(), SeparateImages(), and SetImageAlphaChannel().

SeparateImages()

MagickExport Image * SeparateImages	(	const Image *	image,
		const ChannelType	channel,
		ExceptionInfo *	exception
	)

Definition at line 577 of file channel.c.

References AlphaChannel, AppendImageToList(), BlackChannel, BlueChannel, CloneImage(), CMYKColorspace, _Image::colorspace, _Image::filename, GetMagickModule, GreenChannel, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, NewImageList(), RedChannel, SeparateImageChannel(), _Image::signature, TraceEvent, and TrueAlphaChannel.

SetImageAlphaChannel()

MagickExport MagickBooleanType SetImageAlphaChannel	(	Image *	image,
		const AlphaChannelType	alpha_type
	)

Definition at line 652 of file channel.c.

References AcquireAuthenticCacheView(), ActivateAlphaChannel, AssociateAlphaChannel, _Image::background_color, BackgroundAlphaChannel, _PixelPacket::blue, ClampToQuantum(), CMYKColorspace, _Image::colorspace, _Image::columns, ConvertRGBToCMYK(), CopyAlphaChannel, DeactivateAlphaChannel, DestroyCacheView(), DirectClass, DisassociateAlphaChannel, _Image::exception, ExtractAlphaChannel, FlattenAlphaChannel, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetMagickPixelPacket(), GetPixelAlpha, GetPixelBlue, GetPixelGreen, GetPixelRed, GrayChannels, _PixelPacket::green, IsEventLogging(), LevelColorsImage(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickOver_(), MagickTrue, _Image::matte, _PixelPacket::opacity, OpaqueAlphaChannel, OpaqueOpacity, PerceptibleReciprocal(), QuantumRange, QuantumScale, _PixelPacket::red, RemoveAlphaChannel, ResetAlphaChannel, _Image::rows, SeparateImageChannel(), SetAlphaChannel, SetImageOpacity(), SetImageStorageClass(), SetMagickPixelPacket(), SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelPacket(), SetPixelRed, ShapeAlphaChannel, _Image::signature, SyncCacheViewAuthenticPixels(), SyncImagePixelCache(), TraceEvent, TransparentAlphaChannel, TransparentOpacity, TrueAlphaChannel, and UndefinedAlphaChannel.

Referenced by CannyEdgeImage(), ClearBounds(), ClutImageChannel(), ColorFloodfillImage(), ColorizeImage(), CompareImageChannels(), CompositeImageChannel(), DistortResizeImage(), DrawPrimitive(), FloodfillPaintImage(), FrameImage(), HaldClutImageChannel(), MatteFloodfillImage(), MorphologyApply(), PolaroidImage(), RenderMVGContent(), RenderPostscript(), SeparateImageChannel(), SetImageBackgroundColor(), SetImageType(), ShadowImage(), ShearImage(), ShearRotateImage(), SimilarityMetricImage(), TransparentImage(), TransparentPaintImage(), and TransparentPaintImageChroma().