distort.c File Reference

#include "MagickCore/studio.h"
#include "MagickCore/artifact.h"
#include "MagickCore/cache.h"
#include "MagickCore/cache-view.h"
#include "MagickCore/channel.h"
#include "MagickCore/colorspace-private.h"
#include "MagickCore/composite-private.h"
#include "MagickCore/distort.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/gem.h"
#include "MagickCore/image.h"
#include "MagickCore/linked-list.h"
#include "MagickCore/list.h"
#include "MagickCore/matrix.h"
#include "MagickCore/matrix-private.h"
#include "MagickCore/memory_.h"
#include "MagickCore/monitor-private.h"
#include "MagickCore/option.h"
#include "MagickCore/pixel.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/pixel-private.h"
#include "MagickCore/resample.h"
#include "MagickCore/resample-private.h"
#include "MagickCore/registry.h"
#include "MagickCore/resource_.h"
#include "MagickCore/semaphore.h"
#include "MagickCore/shear.h"
#include "MagickCore/string_.h"
#include "MagickCore/string-private.h"
#include "MagickCore/thread-private.h"
#include "MagickCore/token.h"
#include "MagickCore/transform.h"

Defines
#define	DistortResizeImageTag   "Distort/Image"
#define	DistortImageTag   "Distort/Image"
#define	InitalBounds(p)
#define	ExpandBounds(p)
#define	ScaleFilter(F, A, B, C, D)
#define	SparseColorTag   "Distort/SparseColor"
Functions
static void	AffineArgsToCoefficients (double *affine)
static void	CoefficientsToAffineArgs (double *coeff)
static void	InvertAffineCoefficients (const double *coeff, double *inverse)
static void	InvertPerspectiveCoefficients (const double *coeff, double *inverse)
static size_t	poly_number_terms (double order)
static double	poly_basis_fn (ssize_t n, double x, double y)
static const char *	poly_basis_str (ssize_t n)
static double	poly_basis_dx (ssize_t n, double x, double y)
static double	poly_basis_dy (ssize_t n, double x, double y)
MagickExport Image *	AffineTransformImage (const Image *image, const AffineMatrix *affine_matrix, ExceptionInfo *exception)
static double	MagickRound (double x)
static double *	GenerateCoefficients (const Image *image, DistortMethod *method, const size_t number_arguments, const double *arguments, size_t number_values, ExceptionInfo *exception)
MagickExport Image *	DistortResizeImage (const Image *image, const size_t columns, const size_t rows, ExceptionInfo *exception)
MagickExport Image *	DistortImage (const Image *image, DistortMethod method, const size_t number_arguments, const double *arguments, MagickBooleanType bestfit, ExceptionInfo *exception)
MagickExport Image *	RotateImage (const Image *image, const double degrees, ExceptionInfo *exception)
MagickExport Image *	SparseColorImage (const Image *image, const SparseColorMethod method, const size_t number_arguments, const double *arguments, ExceptionInfo *exception)

---

Define Documentation

#define DistortImageTag   "Distort/Image"

Referenced by DistortImage().

#define DistortResizeImageTag   "Distort/Image"

#define ExpandBounds

(

p

)

Value:

{ \
  /* printf("%lg,%lg -> %lg,%lg\n", s.x,s.y, d.x,d.y); */ \
  min.x = MagickMin(min.x,p.x); \
  max.x = MagickMax(max.x,p.x); \
  min.y = MagickMin(min.y,p.y); \
  max.y = MagickMax(max.y,p.y); \
}

Referenced by DistortImage().

#define InitalBounds

(

p

)

Value:

{ \
  /* printf("%lg,%lg -> %lg,%lg\n", s.x,s.y, d.x,d.y); */ \
  min.x = max.x = p.x; \
  min.y = max.y = p.y; \
}

Referenced by DistortImage().

#define ScaleFilter	(	F,
		A,
		B,
		C,
		D		)

Value:

ScaleResampleFilter( (F), \
      output_scaling*(A), output_scaling*(B), \
      output_scaling*(C), output_scaling*(D) )

Referenced by DistortImage().

#define SparseColorTag   "Distort/SparseColor"

Referenced by SparseColorImage().

---

Function Documentation

static void AffineArgsToCoefficients

(

double *

affine

)

[inline, static]

Referenced by GenerateCoefficients().

MagickExport Image* AffineTransformImage	(	const Image *	image,
		const AffineMatrix *	affine_matrix,
		ExceptionInfo *	exception
	)

References AffineProjectionDistortion, _Image::debug, DistortImage(), _Image::filename, GetMagickModule, LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, _AffineMatrix::rx, _AffineMatrix::ry, _ExceptionInfo::signature, _Image::signature, _AffineMatrix::sx, _AffineMatrix::sy, TraceEvent, _AffineMatrix::tx, and _AffineMatrix::ty.

Referenced by DeskewImage().

static void CoefficientsToAffineArgs

(

double *

coeff

)

[inline, static]

Referenced by DistortImage().

MagickExport Image* DistortImage	(	const Image *	image,
		DistortMethod	method,
		const size_t	number_arguments,
		const double *	arguments,
		MagickBooleanType	bestfit,
		ExceptionInfo *	exception
	)

References AcquireAuthenticCacheView(), AcquireQuantumMemory(), AcquireResampleFilterThreadSet(), AffineDistortion, _Image::alpha_trait, _PixelInfo::alpha_trait, ArcDistortion, _Image::background_color, BarrelDistortion, BarrelInverseDistortion, BilinearDistortion, BilinearForwardDistortion, BilinearReverseDistortion, BlendPixelTrait, CloneImage(), CoefficientsToAffineArgs(), _Image::colorspace, _Image::columns, CompositePixelInfoBlend(), ConformPixelInfo(), Cylinder2PlaneDistortion, _Image::debug, DePolarDistortion, DestroyCacheView(), DestroyImage(), DestroyResampleFilterThreadSet(), DirectClass, DistortImageTag, DistortResizeImage(), ExpandBounds, _Image::filename, FormatLocaleFile(), FormatLocaleString(), GenerateCoefficients(), GetImageArtifact(), GetMagickModule, GetMagickPrecision(), GetOpenMPThreadId(), GetPixelChannels(), GetPixelInfo(), _RectangleInfo::height, InitalBounds, InvertAffineCoefficients(), InvertPerspectiveCoefficients(), IsGrayColorspace(), IsPixelInfoGray(), IsStringTrue(), LogMagickEvent(), Magick2PI, magick_restrict, MagickCoreSignature, MagickEpsilon, MagickFalse, MagickPathExtent, MagickPI, MagickPI2, MagickRound(), MagickTrue, _Image::matte_color, NoValue, OptionError, OptionWarning, _Image::page, ParseAbsoluteGeometry(), PerceptibleReciprocal(), PerspectiveDistortion, Plane2CylinderDistortion, PolarDistortion, poly_basis_dx(), poly_basis_dy(), poly_basis_fn(), poly_basis_str(), PolynomialDistortion, _Image::progress_monitor, QueueCacheViewAuthenticPixels(), RelinquishMagickMemory(), ResamplePixelColor(), ResizeDistortion, ResourceLimitError, _Image::rows, ScaleFilter, SetImageColorspace(), SetImageProgress(), SetImageStorageClass(), SetPixelViaPixelInfo(), ShepardsDistortion, _ExceptionInfo::signature, _Image::signature, sRGBColorspace, StringToDouble(), SyncCacheViewAuthenticPixels(), ThrowMagickException(), TraceEvent, UndefinedPixelTrait, UndefinedVirtualPixelMethod, _RectangleInfo::width, _PointInfo::x, _RectangleInfo::x, _PointInfo::y, and _RectangleInfo::y.

Referenced by AffineTransformImage(), DistortResizeImage(), and RotateImage().

MagickExport Image* DistortResizeImage	(	const Image *	image,
		const size_t	columns,
		const size_t	rows,
		ExceptionInfo *	exception
	)

References AffineDistortion, _Image::alpha_trait, CloneImage(), _Image::columns, _Image::compose, CompositeImage(), CopyAlphaCompositeOp, CropImage(), DeactivateAlphaChannel, _Image::debug, DestroyImage(), DistortImage(), ExtractAlphaChannel, _Image::filename, GetImageVirtualPixelMethod(), GetMagickModule, _RectangleInfo::height, LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, OffAlphaChannel, OpaqueAlphaChannel, _Image::page, _Image::rows, SetAlphaChannel, SetImageAlphaChannel(), SetImageVirtualPixelMethod(), _ExceptionInfo::signature, _Image::signature, TraceEvent, TransparentVirtualPixelMethod, UndefinedPixelTrait, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

Referenced by DistortImage().

static double* GenerateCoefficients	(	const Image *	image,
		DistortMethod *	method,
		const size_t	number_arguments,
		const double *	arguments,
		size_t	number_values,
		ExceptionInfo *	exception
	)			[static]

References AcquireMagickMatrix(), AcquireQuantumMemory(), AffineArgsToCoefficients(), AffineDistortion, AffineProjectionDistortion, ArcDistortion, BarrelDistortion, BarrelInverseDistortion, BilinearForwardDistortion, BilinearReverseDistortion, _Image::columns, CommandOptionToMnemonic(), Cylinder2PlaneDistortion, DegreesToRadians(), DePolarDistortion, GaussJordanElimination(), GetImageArtifact(), GetMagickModule, InvertAffineCoefficients(), InvertPerspectiveCoefficients(), LeastSquaresAddTerms(), Magick2PI, MagickDistortOptions, MagickEpsilon, MagickFalse, MagickMax, MagickMin, MagickPI, MagickPI2, MagickRound(), OptionError, _Image::page, PerspectiveDistortion, PerspectiveProjectionDistortion, Plane2CylinderDistortion, PolarDistortion, poly_basis_fn(), poly_number_terms(), PolynomialDistortion, RelinquishMagickMatrix(), RelinquishMagickMemory(), ResourceLimitError, _Image::rows, ScaleRotateTranslateDistortion, ShepardsDistortion, StringToDouble(), ThrowMagickException(), _RectangleInfo::x, and _RectangleInfo::y.

Referenced by DistortImage(), and SparseColorImage().

static void InvertAffineCoefficients	(	const double *	coeff,
		double *	inverse
	)			[static]

References PerceptibleReciprocal().

Referenced by DistortImage(), and GenerateCoefficients().

static void InvertPerspectiveCoefficients	(	const double *	coeff,
		double *	inverse
	)			[static]

References PerceptibleReciprocal().

Referenced by DistortImage(), and GenerateCoefficients().

static double MagickRound

(

double

x

)

[inline, static]

Referenced by DistortImage(), and GenerateCoefficients().

static double poly_basis_dx	(	ssize_t	n,
		double	x,
		double	y
	)			[static]

Referenced by DistortImage(), and poly_basis_dy().

static double poly_basis_dy	(	ssize_t	n,
		double	x,
		double	y
	)			[static]

References poly_basis_dx().

Referenced by DistortImage().

static double poly_basis_fn	(	ssize_t	n,
		double	x,
		double	y
	)			[static]

Referenced by DistortImage(), and GenerateCoefficients().

static const char* poly_basis_str

(

ssize_t

n

)

[static]

Referenced by DistortImage().

static size_t poly_number_terms

(

double

order

)

[static]

References MagickEpsilon.

Referenced by GenerateCoefficients().

MagickExport Image* RotateImage	(	const Image *	image,
		const double	degrees,
		ExceptionInfo *	exception
	)

References BackgroundVirtualPixelMethod, CloneImage(), _Image::debug, DegreesToRadians(), DestroyImage(), DistortImage(), _Image::filename, GetMagickModule, IntegralRotateImage(), LogMagickEvent(), MagickCoreSignature, MagickEpsilon, MagickFalse, MagickTrue, ScaleRotateTranslateDistortion, SetImageVirtualPixelMethod(), _ExceptionInfo::signature, _Image::signature, TraceEvent, _PointInfo::x, and _PointInfo::y.

Referenced by AutoOrientImage(), PolaroidImage(), PreviewImage(), XAnnotateImage(), and XDrawImage().

MagickExport Image* SparseColorImage	(	const Image *	image,
		const SparseColorMethod	method,
		const size_t	number_arguments,
		const double *	arguments,
		ExceptionInfo *	exception
	)

References AcquireAuthenticCacheView(), _PixelInfo::alpha, _Image::alpha_trait, BarycentricColorInterpolate, BilinearColorInterpolate, _PixelInfo::black, _PixelInfo::blue, ClampPixel(), CloneImage(), CMYKColorspace, _Image::colorspace, _Image::columns, _Image::debug, DestroyCacheView(), DestroyImage(), DirectClass, _Image::filename, FormatLocaleFile(), GenerateCoefficients(), GetCacheViewAuthenticPixels(), GetImageArtifact(), GetMagickModule, GetPixelAlphaTraits(), GetPixelBlackTraits(), GetPixelBlueTraits(), GetPixelChannels(), GetPixelGreenTraits(), GetPixelInfo(), GetPixelInfoPixel(), GetPixelRedTraits(), _PixelInfo::green, InverseColorInterpolate, IsStringTrue(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickMaximumValue, MagickTrue, ManhattanColorInterpolate, _Image::progress_monitor, QuantumRange, _PixelInfo::red, RelinquishMagickMemory(), _Image::rows, SentinelDistortion, SetImageProgress(), SetImageStorageClass(), SetPixelViaPixelInfo(), ShepardsColorInterpolate, ShepardsDistortion, _ExceptionInfo::signature, _Image::signature, SparseColorTag, SyncCacheViewAuthenticPixels(), TraceEvent, UndefinedPixelTrait, UpdatePixelTrait, and VoronoiColorInterpolate.