resize.c File Reference

#include "magick/studio.h"
#include "magick/artifact.h"
#include "magick/blob.h"
#include "magick/cache-view.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/draw.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/gem.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/list.h"
#include "magick/memory_.h"
#include "magick/pixel-private.h"
#include "magick/property.h"
#include "magick/monitor.h"
#include "magick/pixel.h"
#include "magick/option.h"
#include "magick/resample.h"
#include "magick/resize.h"
#include "magick/resize-private.h"
#include "magick/string_.h"
#include "magick/utility.h"
#include "magick/version.h"

Data Structures
struct	_ResizeFilter
struct	_ContributionInfo
Defines
#define	Alpha   6.5
#define	I0A   (1.0/I0(Alpha))
#define	AdaptiveResizeImageTag   "Resize/Image"
#define	ResampleImageTag   "Resample/Image"
#define	ResizeImageTag   "Resize/Image"
#define	SampleImageTag   "Sample/Image"
#define	ScaleImageTag   "Scale/Image"
Typedefs
typedef struct _ContributionInfo	ContributionInfo
Functions
static MagickRealType	I0 (MagickRealType x)
static MagickRealType	BesselOrderOne (MagickRealType)
static MagickRealType	Bessel (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Blackman (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Bohman (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Box (const MagickRealType magick_unused(x), const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	CubicBC (const MagickRealType x, const ResizeFilter *resize_filter)
static MagickRealType	Gaussian (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Hanning (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Hamming (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Kaiser (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Lagrange (const MagickRealType x, const ResizeFilter *resize_filter)
static MagickRealType	Quadratic (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Sinc (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Triangle (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
static MagickRealType	Welsh (const MagickRealType x, const ResizeFilter *magick_unused(resize_filter))
MagickExport ResizeFilter *	AcquireResizeFilter (const Image *image, const FilterTypes filter, const MagickRealType blur, const MagickBooleanType cylindrical, ExceptionInfo *exception)
MagickExport Image *	AdaptiveResizeImage (const Image *image, const unsigned long columns, const unsigned long rows, ExceptionInfo *exception)
static MagickRealType	J1 (MagickRealType x)
static MagickRealType	P1 (MagickRealType x)
static MagickRealType	Q1 (MagickRealType x)
MagickExport ResizeFilter *	DestroyResizeFilter (ResizeFilter *resize_filter)
MagickExport MagickRealType	GetResizeFilterSupport (const ResizeFilter *resize_filter)
MagickExport MagickRealType	GetResizeFilterWeight (const ResizeFilter *resize_filter, const MagickRealType x)
MagickExport Image *	MagnifyImage (const Image *image, ExceptionInfo *exception)
MagickExport Image *	MinifyImage (const Image *image, ExceptionInfo *exception)
MagickExport Image *	ResampleImage (const Image *image, const double x_resolution, const double y_resolution, const FilterTypes filter, const double blur, ExceptionInfo *exception)
MagickExport Image *	LiquidRescaleImage (const Image *image, const unsigned long magick_unused(columns), const unsigned long magick_unused(rows), const double magick_unused(delta_x), const double magick_unused(rigidity), ExceptionInfo *exception)
static double	MagickMax (const double x, const double y)
static double	MagickMin (const double x, const double y)
static MagickBooleanType	HorizontalFilter (const ResizeFilter *resize_filter, const Image *image, Image *resize_image, const MagickRealType x_factor, const MagickSizeType span, MagickOffsetType *quantum, ExceptionInfo *exception)
static MagickBooleanType	VerticalFilter (const ResizeFilter *resize_filter, const Image *image, Image *resize_image, const MagickRealType y_factor, const MagickSizeType span, MagickOffsetType *quantum, ExceptionInfo *exception)
MagickExport Image *	ResizeImage (const Image *image, const unsigned long columns, const unsigned long rows, const FilterTypes filter, const double blur, ExceptionInfo *exception)
MagickExport Image *	SampleImage (const Image *image, const unsigned long columns, const unsigned long rows, ExceptionInfo *exception)
MagickExport Image *	ScaleImage (const Image *image, const unsigned long columns, const unsigned long rows, ExceptionInfo *exception)
MagickExport void	SetResizeFilterSupport (ResizeFilter *resize_filter, const MagickRealType support)
MagickExport Image *	ThumbnailImage (const Image *image, const unsigned long columns, const unsigned long rows, ExceptionInfo *exception)
MagickExport Image *	ZoomImage (const Image *image, const unsigned long columns, const unsigned long rows, ExceptionInfo *exception)

---

Define Documentation

#define AdaptiveResizeImageTag   "Resize/Image"

#define Alpha   6.5

#define I0A   (1.0/I0(Alpha))

#define ResampleImageTag   "Resample/Image"

#define ResizeImageTag   "Resize/Image"

#define SampleImageTag   "Sample/Image"

#define ScaleImageTag   "Scale/Image"

---

Typedef Documentation

typedef struct _ContributionInfo ContributionInfo

---

Function Documentation

MagickExport ResizeFilter* AcquireResizeFilter	(	const Image *	image,
		const FilterTypes	filter,
		const MagickRealType	blur,
		const MagickBooleanType	cylindrical,
		ExceptionInfo *	exception
	)

MagickExport Image* AdaptiveResizeImage	(	const Image *	image,
		const unsigned long	columns,
		const unsigned long	rows,
		ExceptionInfo *	exception
	)

static MagickRealType Bessel	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

static MagickRealType BesselOrderOne

(

MagickRealType

x

)

static MagickRealType Blackman	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

static MagickRealType Bohman	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

static MagickRealType Box	(	const MagickRealType	magick_unused(x),
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

static MagickRealType CubicBC	(	const MagickRealType	x,
		const ResizeFilter *	resize_filter
	)			[static]

MagickExport ResizeFilter* DestroyResizeFilter

(

ResizeFilter *

resize_filter

)

static MagickRealType Gaussian	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

MagickExport MagickRealType GetResizeFilterSupport

(

const ResizeFilter *

resize_filter

)

MagickExport MagickRealType GetResizeFilterWeight	(	const ResizeFilter *	resize_filter,
		const MagickRealType	x
	)

static MagickRealType Hamming	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

static MagickRealType Hanning	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

static MagickBooleanType HorizontalFilter	(	const ResizeFilter *	resize_filter,
		const Image *	image,
		Image *	resize_image,
		const MagickRealType	x_factor,
		const MagickSizeType	span,
		MagickOffsetType *	quantum,
		ExceptionInfo *	exception
	)			[static]

static MagickRealType I0

(

MagickRealType

x

)

[static]

static MagickRealType J1

(

MagickRealType

x

)

[static]

static MagickRealType Kaiser	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

static MagickRealType Lagrange	(	const MagickRealType	x,
		const ResizeFilter *	resize_filter
	)			[static]

MagickExport Image* LiquidRescaleImage	(	const Image *	image,
		const unsigned long	magick_unused(columns),
		const unsigned long	magick_unused(rows),
		const double	magick_unused(delta_x),
		const double	magick_unused(rigidity),
		ExceptionInfo *	exception
	)

static double MagickMax	(	const double	x,
		const double	y
	)			[inline, static]

static double MagickMin	(	const double	x,
		const double	y
	)			[inline, static]

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

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

static MagickRealType P1

(

MagickRealType

x

)

[static]

static MagickRealType Q1

(

MagickRealType

x

)

[static]

static MagickRealType Quadratic	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

MagickExport Image* ResampleImage	(	const Image *	image,
		const double	x_resolution,
		const double	y_resolution,
		const FilterTypes	filter,
		const double	blur,
		ExceptionInfo *	exception
	)

MagickExport Image* ResizeImage	(	const Image *	image,
		const unsigned long	columns,
		const unsigned long	rows,
		const FilterTypes	filter,
		const double	blur,
		ExceptionInfo *	exception
	)

MagickExport Image* SampleImage	(	const Image *	image,
		const unsigned long	columns,
		const unsigned long	rows,
		ExceptionInfo *	exception
	)

MagickExport Image* ScaleImage	(	const Image *	image,
		const unsigned long	columns,
		const unsigned long	rows,
		ExceptionInfo *	exception
	)

MagickExport void SetResizeFilterSupport	(	ResizeFilter *	resize_filter,
		const MagickRealType	support
	)

static MagickRealType Sinc	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

MagickExport Image* ThumbnailImage	(	const Image *	image,
		const unsigned long	columns,
		const unsigned long	rows,
		ExceptionInfo *	exception
	)

static MagickRealType Triangle	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

static MagickBooleanType VerticalFilter	(	const ResizeFilter *	resize_filter,
		const Image *	image,
		Image *	resize_image,
		const MagickRealType	y_factor,
		const MagickSizeType	span,
		MagickOffsetType *	quantum,
		ExceptionInfo *	exception
	)			[static]

static MagickRealType Welsh	(	const MagickRealType	x,
		const ResizeFilter *	magick_unused(resize_filter)
	)			[static]

MagickExport Image* ZoomImage	(	const Image *	image,
		const unsigned long	columns,
		const unsigned long	rows,
		ExceptionInfo *	exception
	)

---