core/vil/algo/vil_sobel_1x3.h File Reference

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Detailed Description

Apply 1x3 sobel operator to image data.

Author:

Tim Cootes

Definition in file vil_sobel_1x3.h.

#include <vil/vil_image_view.h>

Go to the source code of this file.

Functions
template<class srcT, class destT>
void	vil_sobel_1x3_1plane (const srcT *src, vcl_ptrdiff_t s_istep, vcl_ptrdiff_t s_jstep, destT *gi, vcl_ptrdiff_t gi_istep, vcl_ptrdiff_t gi_jstep, destT *gj, vcl_ptrdiff_t gj_istep, vcl_ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 1x3 Sobel filters.
VCL_DEFINE_SPECIALIZATION void	vil_sobel_1x3_1plane (const unsigned char *src, vcl_ptrdiff_t s_istep, vcl_ptrdiff_t s_jstep, float *gi, vcl_ptrdiff_t gi_istep, vcl_ptrdiff_t gi_jstep, float *gj, vcl_ptrdiff_t gj_istep, vcl_ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 1x3 Sobel filters.
VCL_DEFINE_SPECIALIZATION void	vil_sobel_1x3_1plane (const unsigned char *src, vcl_ptrdiff_t s_istep, vcl_ptrdiff_t s_jstep, double *gi, vcl_ptrdiff_t gi_istep, vcl_ptrdiff_t gi_jstep, double *gj, vcl_ptrdiff_t gj_istep, vcl_ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 1x3 Sobel filters.
VCL_DEFINE_SPECIALIZATION void	vil_sobel_1x3_1plane (const float *src, vcl_ptrdiff_t s_istep, vcl_ptrdiff_t s_jstep, float *gi, vcl_ptrdiff_t gi_istep, vcl_ptrdiff_t gi_jstep, float *gj, vcl_ptrdiff_t gj_istep, vcl_ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 1x3 Sobel filters.
VCL_DEFINE_SPECIALIZATION void	vil_sobel_1x3_1plane (const double *src, vcl_ptrdiff_t s_istep, vcl_ptrdiff_t s_jstep, double *gi, vcl_ptrdiff_t gi_istep, vcl_ptrdiff_t gi_jstep, double *gj, vcl_ptrdiff_t gj_istep, vcl_ptrdiff_t gj_jstep, unsigned ni, unsigned nj)
	Compute gradients of single plane of 2D data using 1x3 Sobel filters.

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Function Documentation

VCL_DEFINE_SPECIALIZATION void vil_sobel_1x3_1plane	(	const double *	src,
		vcl_ptrdiff_t	s_istep,
		vcl_ptrdiff_t	s_jstep,
		double *	gi,
		vcl_ptrdiff_t	gi_istep,
		vcl_ptrdiff_t	gi_jstep,
		double *	gj,
		vcl_ptrdiff_t	gj_istep,
		vcl_ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 1x3 Sobel filters.

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

Definition at line 306 of file vil_sobel_1x3.cxx.

VCL_DEFINE_SPECIALIZATION void vil_sobel_1x3_1plane	(	const float *	src,
		vcl_ptrdiff_t	s_istep,
		vcl_ptrdiff_t	s_jstep,
		float *	gi,
		vcl_ptrdiff_t	gi_istep,
		vcl_ptrdiff_t	gi_jstep,
		float *	gj,
		vcl_ptrdiff_t	gj_istep,
		vcl_ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 1x3 Sobel filters.

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

Definition at line 209 of file vil_sobel_1x3.cxx.

VCL_DEFINE_SPECIALIZATION void vil_sobel_1x3_1plane	(	const unsigned char *	src,
		vcl_ptrdiff_t	s_istep,
		vcl_ptrdiff_t	s_jstep,
		double *	gi,
		vcl_ptrdiff_t	gi_istep,
		vcl_ptrdiff_t	gi_jstep,
		double *	gj,
		vcl_ptrdiff_t	gj_istep,
		vcl_ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 1x3 Sobel filters.

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

Definition at line 110 of file vil_sobel_1x3.cxx.

VCL_DEFINE_SPECIALIZATION void vil_sobel_1x3_1plane	(	const unsigned char *	src,
		vcl_ptrdiff_t	s_istep,
		vcl_ptrdiff_t	s_jstep,
		float *	gi,
		vcl_ptrdiff_t	gi_istep,
		vcl_ptrdiff_t	gi_jstep,
		float *	gj,
		vcl_ptrdiff_t	gj_istep,
		vcl_ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 1x3 Sobel filters.

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

Definition at line 11 of file vil_sobel_1x3.cxx.

template<class srcT, class destT>

void vil_sobel_1x3_1plane	(	const srcT *	src,
		vcl_ptrdiff_t	s_istep,
		vcl_ptrdiff_t	s_jstep,
		destT *	gi,
		vcl_ptrdiff_t	gi_istep,
		vcl_ptrdiff_t	gi_jstep,
		destT *	gj,
		vcl_ptrdiff_t	gj_istep,
		vcl_ptrdiff_t	gj_jstep,
		unsigned	ni,
		unsigned	nj
	)

Compute gradients of single plane of 2D data using 1x3 Sobel filters.

Computes both i and j gradients of an ni x nj plane of data 1 pixel border around grad images is set to zero

Definition at line 56 of file vil_sobel_1x3.txx.

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