vil_sobel_3x3.cxx File Reference

Apply gradient operator to 2D planes of data. More...

#include "vil_sobel_3x3.h"

Go to the source code of this file.

Functions
template<>
void	vil_sobel_3x3_1plane (const unsigned char *src, std::ptrdiff_t s_istep, std::ptrdiff_t s_jstep, float *gi, std::ptrdiff_t gi_istep, std::ptrdiff_t gi_jstep, float *gj, std::ptrdiff_t gj_istep, std::ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 3x3 Sobel filters. More...
template<>
void	vil_sobel_3x3_1plane (const unsigned char *src, std::ptrdiff_t s_istep, std::ptrdiff_t s_jstep, double *gi, std::ptrdiff_t gi_istep, std::ptrdiff_t gi_jstep, double *gj, std::ptrdiff_t gj_istep, std::ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 3x3 Sobel filters. More...
template<>
void	vil_sobel_3x3_1plane (const float *src, std::ptrdiff_t s_istep, std::ptrdiff_t s_jstep, float *gi, std::ptrdiff_t gi_istep, std::ptrdiff_t gi_jstep, float *gj, std::ptrdiff_t gj_istep, std::ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 3x3 Sobel filters. More...
template<>
void	vil_sobel_3x3_1plane (const double *src, std::ptrdiff_t s_istep, std::ptrdiff_t s_jstep, double *gi, std::ptrdiff_t gi_istep, std::ptrdiff_t gi_jstep, double *gj, std::ptrdiff_t gj_istep, std::ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 3x3 Sobel filters. More...

Detailed Description

Apply gradient operator to 2D planes of data.

Author

Tim Cootes

Definition in file vil_sobel_3x3.cxx.

Function Documentation

vil_sobel_3x3_1plane() [1/4]

template<>

void vil_sobel_3x3_1plane	(	const unsigned char *	src,
		std::ptrdiff_t	s_istep,
		std::ptrdiff_t	s_jstep,
		float *	gi,
		std::ptrdiff_t	gi_istep,
		std::ptrdiff_t	gi_jstep,
		float *	gj,
		std::ptrdiff_t	gj_istep,
		std::ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 3x3 Sobel filters.

Computes both i and j gradients of an ni x nj plane of data

Definition at line 11 of file vil_sobel_3x3.cxx.

vil_sobel_3x3_1plane() [2/4]

template<>

void vil_sobel_3x3_1plane	(	const unsigned char *	src,
		std::ptrdiff_t	s_istep,
		std::ptrdiff_t	s_jstep,
		double *	gi,
		std::ptrdiff_t	gi_istep,
		std::ptrdiff_t	gi_jstep,
		double *	gj,
		std::ptrdiff_t	gj_istep,
		std::ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 3x3 Sobel filters.

Computes both i and j gradients of an ni x nj plane of data

Definition at line 116 of file vil_sobel_3x3.cxx.

vil_sobel_3x3_1plane() [3/4]

template<>

void vil_sobel_3x3_1plane	(	const float *	src,
		std::ptrdiff_t	s_istep,
		std::ptrdiff_t	s_jstep,
		float *	gi,
		std::ptrdiff_t	gi_istep,
		std::ptrdiff_t	gi_jstep,
		float *	gj,
		std::ptrdiff_t	gj_istep,
		std::ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 3x3 Sobel filters.

Computes both x and j gradients of an nx x nj plane of data

Definition at line 221 of file vil_sobel_3x3.cxx.

vil_sobel_3x3_1plane() [4/4]

template<>

void vil_sobel_3x3_1plane	(	const double *	src,
		std::ptrdiff_t	s_istep,
		std::ptrdiff_t	s_jstep,
		double *	gi,
		std::ptrdiff_t	gi_istep,
		std::ptrdiff_t	gi_jstep,
		double *	gj,
		std::ptrdiff_t	gj_istep,
		std::ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 3x3 Sobel filters.

Computes both x and j gradients of an nx x nj plane of data

Definition at line 322 of file vil_sobel_3x3.cxx.