JasPer Image Class. More...

#include <jasper/jas_config.h>
#include <jasper/jas_stream.h>
#include <jasper/jas_types.h>
#include <jasper/jas_seq.h>
#include <jasper/jas_cm.h>
#include <stdio.h>

Classes
struct	jas_image_cmpt_t
	Image component class. More...

struct	jas_image_t
	Image class. More...

struct	jas_image_cmptparm_t
	Component parameters class. More...

struct	jas_image_fmtops_t
	Image format-dependent operations. More...

struct	jas_image_fmtinfo_t
	Image format information. More...

Macros
#define	JAS_IMAGE_MAXFMTS 32
	The maximum number of image data formats supported. More...

#define	jas_image_width(image) ((image)->brx_ - (image)->tlx_)
	Get the width of the image in units of the image reference grid. More...

#define	jas_image_height(image) ((image)->bry_ - (image)->tly_)
	Get the height of the image in units of the image reference grid. More...

#define	jas_image_tlx(image) ((image)->tlx_)
	Get the x-coordinate of the top-left corner of the image bounding box on the reference grid. More...

#define	jas_image_tly(image) ((image)->tly_)
	Get the y-coordinate of the top-left corner of the image bounding box on the reference grid. More...

#define	jas_image_brx(image) ((image)->brx_)
	Get the x-coordinate of the bottom-right corner of the image bounding box on the reference grid (plus one). More...

#define	jas_image_bry(image) ((image)->bry_)
	Get the y-coordinate of the bottom-right corner of the image bounding box on the reference grid (plus one). More...

#define	jas_image_numcmpts(image) ((image)->numcmpts_)
	Get the number of image components. More...

#define	jas_image_clrspc(image) ((image)->clrspc_)
	Get the color model used by the image. More...

#define	jas_image_setclrspc(image, clrspc) ((image)->clrspc_ = (clrspc))
	Set the color model for an image. More...

#define	jas_image_cmptwidth(image, cmptno) ((image)->cmpts_[cmptno]->width_)
	Get the width of a component. More...

#define	jas_image_cmptheight(image, cmptno) ((image)->cmpts_[cmptno]->height_)
	Get the height of a component. More...

#define	jas_image_cmptsgnd(image, cmptno) ((image)->cmpts_[cmptno]->sgnd_)
	Get the signedness of the sample data for a component. More...

#define	jas_image_cmptprec(image, cmptno) ((image)->cmpts_[cmptno]->prec_)
	Get the precision of the sample data for a component. More...

#define	jas_image_cmpthstep(image, cmptno) ((image)->cmpts_[cmptno]->hstep_)
	Get the horizontal subsampling factor for a component. More...

#define	jas_image_cmptvstep(image, cmptno) ((image)->cmpts_[cmptno]->vstep_)
	Get the vertical subsampling factor for a component. More...

#define	jas_image_cmpttlx(image, cmptno) ((image)->cmpts_[cmptno]->tlx_)
	Get the x-coordinate of the top-left corner of a component. More...

#define	jas_image_cmpttly(image, cmptno) ((image)->cmpts_[cmptno]->tly_)
	Get the y-coordinate of the top-left corner of a component. More...

#define	jas_image_cmptbrx(image, cmptno)
	Get the x-coordinate of the bottom-right corner of a component (plus "one"). More...

#define	jas_image_cmptbry(image, cmptno)
	Get the y-coordinate of the bottom-right corner of a component (plus "one"). More...

#define	jas_image_cmprof(image) ((image)->cmprof_)
	Get the color management profile of an image. More...

#define	jas_image_setcmprof(image, cmprof) ((image)->cmprof_ = cmprof)
	Set the color management profile for an image. More...

Typedefs
typedef int_fast32_t	jas_image_coord_t
	Image coordinate. More...

typedef int_fast16_t	jas_image_colorspc_t
	Color space (e.g., RGB, YCbCr). More...

typedef int_fast32_t	jas_image_cmpttype_t
	Component type (e.g., color, opacity). More...

typedef int_fast16_t	jas_image_smpltype_t
	Component sample data format (e.g., real/integer, signedness, precision). More...

Functions
JAS_EXPORT jas_image_t *	jas_image_create (unsigned numcmpts, const jas_image_cmptparm_t *cmptparms, jas_clrspc_t clrspc)
	Create an image. More...

JAS_EXPORT jas_image_t *	jas_image_create0 (void)
	Create an "empty" image. More...

JAS_EXPORT jas_image_t *	jas_image_copy (jas_image_t *image)
	Clone an image. More...

JAS_EXPORT void	jas_image_destroy (jas_image_t *image)
	Deallocate any resources associated with an image. More...

JAS_ATTRIBUTE_PURE JAS_EXPORT bool	jas_image_cmpt_domains_same (const jas_image_t *image)
	Test if all components are specified at the same positions in space. More...

JAS_ATTRIBUTE_PURE JAS_EXPORT uint_fast32_t	jas_image_rawsize (const jas_image_t *image)
	Get the raw size of an image (i.e., the nominal size of the image without any compression. More...

JAS_EXPORT jas_image_t *	jas_image_decode (jas_stream_t in, int fmt, const char optstr)
	Create an image from a stream in some specified format. More...

JAS_EXPORT int	jas_image_encode (jas_image_t image, jas_stream_t out, int fmt, const char *optstr)
	Write an image to a stream in a specified format. More...

JAS_EXPORT int	jas_image_readcmpt (jas_image_t image, unsigned cmptno, jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height, jas_matrix_t data)
	Read a rectangular region of an image component. More...

JAS_EXPORT int	jas_image_writecmpt (jas_image_t image, unsigned cmptno, jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height, const jas_matrix_t data)
	Write a rectangular region of an image component. More...

JAS_EXPORT void	jas_image_delcmpt (jas_image_t *image, unsigned cmptno)
	Delete a component from an image. More...

JAS_EXPORT int	jas_image_addcmpt (jas_image_t image, int cmptno, const jas_image_cmptparm_t cmptparm)
	Add a component to an image. More...

JAS_EXPORT int	jas_image_copycmpt (jas_image_t dstimage, unsigned dstcmptno, jas_image_t srcimage, unsigned srccmptno)
	Copy a component from one image to another. More...

JAS_EXPORT int	jas_image_depalettize (jas_image_t image, unsigned cmptno, unsigned numlutents, const int_fast32_t lutents, unsigned dtype, unsigned newcmptno)
	Depalettize an image. More...

JAS_EXPORT int	jas_image_readcmptsample (jas_image_t *image, unsigned cmptno, unsigned x, unsigned y)
	Read a component sample for an image. More...

JAS_EXPORT void	jas_image_writecmptsample (jas_image_t *image, unsigned cmptno, unsigned x, unsigned y, int_fast32_t v)
	Write a component sample for an image. More...

JAS_ATTRIBUTE_PURE JAS_EXPORT int	jas_image_getcmptbytype (const jas_image_t *image, jas_image_cmpttype_t ctype)
	Get an image component by its type. More...

JAS_EXPORT void	jas_image_clearfmts (void)
	Clear the table of image formats. More...

const JAS_EXPORT jas_image_fmtinfo_t *	jas_image_getfmtbyind (int index)
	Get a image format entry by its table index. More...

JAS_EXPORT int	jas_image_getnumfmts (void)
	Get the number of image format table entries. More...

JAS_EXPORT int	jas_image_setfmtenable (int index, int enabled)
	Get the number of image format table entries. More...

JAS_EXPORT int	jas_image_addfmt (int id, const char name, const char ext, const char desc, const jas_image_fmtops_t ops)
	Add entry to table of image formats. More...

JAS_ATTRIBUTE_PURE JAS_EXPORT int	jas_image_strtofmt (const char *s)
	Get the ID for the image format with the specified name. More...

JAS_ATTRIBUTE_CONST const JAS_EXPORT char *	jas_image_fmttostr (int fmt)
	Get the name of the image format with the specified ID. More...

JAS_ATTRIBUTE_CONST const JAS_EXPORT jas_image_fmtinfo_t *	jas_image_lookupfmtbyid (int id)
	Lookup image format information by the format ID. More...

JAS_ATTRIBUTE_PURE const JAS_EXPORT jas_image_fmtinfo_t *	jas_image_lookupfmtbyname (const char *name)
	Lookup image format information by the format name. More...

JAS_ATTRIBUTE_PURE JAS_EXPORT int	jas_image_fmtfromname (const char *filename)
	Guess the format of an image file based on its name. More...

JAS_ATTRIBUTE_PURE JAS_EXPORT int	jas_image_getfmt (jas_stream_t *in)
	Get the format of image data in a stream. More...

JAS_ATTRIBUTE_PURE JAS_EXPORT int	jas_image_ishomosamp (const jas_image_t *image)
	Test if the sampling of the image is homogeneous. More...

JAS_EXPORT int	jas_image_sampcmpt (jas_image_t *image, unsigned cmptno, unsigned newcmptno, jas_image_coord_t ho, jas_image_coord_t vo, jas_image_coord_t hs, jas_image_coord_t vs, int sgnd, unsigned prec)
	??? More...

JAS_EXPORT int	jas_image_writecmpt2 (jas_image_t image, unsigned cmptno, jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height, const long buf)
	Write sample data in a component of an image. More...

JAS_EXPORT int	jas_image_readcmpt2 (jas_image_t image, unsigned cmptno, jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height, long buf)
	Read sample data in a component of an image. More...

JAS_EXPORT jas_image_t *	jas_image_chclrspc (jas_image_t image, const jas_cmprof_t outprof, jas_cmxform_intent_t intent)
	Change the color space for an image. More...

JAS_EXPORT int	jas_image_dump (jas_image_t image, FILE out)
	Dump the information for an image (for debugging). More...

Detailed Description

JasPer Image Class.

Classes

Macros

Typedefs

Functions

Detailed Description