MagickCore  6.8.5
shear.c File Reference
Include dependency graph for shear.c:

Data Structures

struct  _RadonInfo

Macros

#define RotateImageTag   "Rotate/Image"
#define XShearImageTag   "XShear/Image"
#define YShearImageTag   "YShear/Image"

Typedefs

typedef struct _RadonInfo RadonInfo

Functions

static MagickBooleanType CropToFitImage (Image **image, const MagickRealType x_shear, const MagickRealType y_shear, const MagickRealType width, const MagickRealType height, const MagickBooleanType rotate, ExceptionInfo *exception)
static RadonInfoDestroyRadonInfo (RadonInfo *radon_info)
static MagickBooleanType ResetRadonCells (RadonInfo *radon_info)
static RadonInfoAcquireRadonInfo (const Image *image, const size_t width, const size_t height, ExceptionInfo *exception)
static size_t MagickMin (const size_t x, const size_t y)
static ssize_t ReadRadonCell (const RadonInfo *radon_info, const MagickOffsetType offset, const size_t length, unsigned char *buffer)
static ssize_t WriteRadonCell (const RadonInfo *radon_info, const MagickOffsetType offset, const size_t length, const unsigned char *buffer)
static unsigned short GetRadonCell (const RadonInfo *radon_info, const ssize_t x, const ssize_t y)
static MagickBooleanType SetRadonCell (const RadonInfo *radon_info, const ssize_t x, const ssize_t y, const unsigned short value)
static void RadonProjection (const Image *image, RadonInfo *source_cells, RadonInfo *destination_cells, const ssize_t sign, size_t *projection)
static MagickBooleanType RadonTransform (const Image *image, const double threshold, size_t *projection, ExceptionInfo *exception)
static void GetImageBackgroundColor (Image *image, const ssize_t offset, ExceptionInfo *exception)
MagickExport ImageDeskewImage (const Image *image, const double threshold, ExceptionInfo *exception)
MagickExport ImageIntegralRotateImage (const Image *image, size_t rotations, ExceptionInfo *exception)
static MagickBooleanType XShearImage (Image *image, const MagickRealType degrees, const size_t width, const size_t height, const ssize_t x_offset, const ssize_t y_offset, ExceptionInfo *exception)
static MagickBooleanType YShearImage (Image *image, const MagickRealType degrees, const size_t width, const size_t height, const ssize_t x_offset, const ssize_t y_offset, ExceptionInfo *exception)
MagickExport ImageShearImage (const Image *image, const double x_shear, const double y_shear, ExceptionInfo *exception)
MagickExport ImageShearRotateImage (const Image *image, const double degrees, ExceptionInfo *exception)

Macro Definition Documentation

#define RotateImageTag   "Rotate/Image"

Referenced by IntegralRotateImage().

#define XShearImageTag   "XShear/Image"

Referenced by XShearImage().

#define YShearImageTag   "YShear/Image"

Referenced by YShearImage().

Typedef Documentation

typedef struct _RadonInfo RadonInfo

Function Documentation

static unsigned short GetRadonCell ( const RadonInfo radon_info,
const ssize_t  x,
const ssize_t  y 
)
inlinestatic
static size_t MagickMin ( const size_t  x,
const size_t  y 
)
inlinestatic

Referenced by ReadRadonCell(), and WriteRadonCell().

static void RadonProjection ( const Image image,
RadonInfo source_cells,
RadonInfo destination_cells,
const ssize_t  sign,
size_t *  projection 
)
static
static ssize_t ReadRadonCell ( const RadonInfo radon_info,
const MagickOffsetType  offset,
const size_t  length,
unsigned char *  buffer 
)
inlinestatic

References _RadonInfo::file, and MagickMin().

Referenced by GetRadonCell().

static MagickBooleanType SetRadonCell ( const RadonInfo radon_info,
const ssize_t  x,
const ssize_t  y,
const unsigned short  value 
)
inlinestatic
static ssize_t WriteRadonCell ( const RadonInfo radon_info,
const MagickOffsetType  offset,
const size_t  length,
const unsigned char *  buffer 
)
inlinestatic

References _RadonInfo::file, and MagickMin().

Referenced by SetRadonCell().