contrib/mul/vil3d/algo/vil3d_grad_1x3.txx File Reference

Apply grad gradient filter to an image. More...

#include "vil3d_grad_1x3.h"
#include <vil3d/vil3d_plane.h>
#include <vil3d/vil3d_slice.h>

Go to the source code of this file.

Defines
#define	vil3d_grad_1x3_txx_
#define	vil3d_GRAD_1X3_INSTANTIATE(srcT, destT)
Functions
template<class srcT , class gradT , class accumT >
void	vil3d_grad_1x3_1dir (const srcT *src, gradT *grad, vcl_ptrdiff_t delta_step, vcl_ptrdiff_t isrc, vcl_ptrdiff_t jsrc, vcl_ptrdiff_t ksrc, vcl_ptrdiff_t igrad, vcl_ptrdiff_t jgrad, vcl_ptrdiff_t kgrad, unsigned ni, unsigned nj, unsigned nk, accumT)
	Compute 1 gradient of single plane of 3D data using 1x3 grad filters.
template<class srcT , class destT >
void	vil3d_grad_1x3 (const vil3d_image_view< srcT > &src, vil3d_image_view< destT > &grad_ijk)
	Compute gradients of an image using (-0.5 0 0.5) grad filters.
template<class srcT , class destT >
void	vil3d_grad_1x3 (const vil3d_image_view< srcT > &src, vil3d_image_view< destT > &grad_i, vil3d_image_view< destT > &grad_j, vil3d_image_view< destT > &grad_k)
	Apply grad 1x3 gradient filter to 3D image.
template<class srcT , class destT >
void	vil3d_grad_1x3_mag_sq (const vil3d_image_view< srcT > &src, vil3d_image_view< destT > &grad_mag2)
	Compute square gradient magnitude of 3D image.

---

Detailed Description

Apply grad gradient filter to an image.

Author:

Tim Cootes

Definition in file vil3d_grad_1x3.txx.

---

Define Documentation

#define vil3d_GRAD_1X3_INSTANTIATE	(		srcT,
			destT
	)

Value:

template void vil3d_grad_1x3(const vil3d_image_view< srcT >& src, \
                                   vil3d_image_view<destT >& grad_ijk); \
template void vil3d_grad_1x3(const vil3d_image_view< srcT >& src, \
                                   vil3d_image_view<destT >& grad_i, \
                                   vil3d_image_view<destT >& grad_j, \
                                   vil3d_image_view<destT >& grad_k); \
template void vil3d_grad_1x3_mag_sq(const vil3d_image_view<srcT >& src, \
                                   vil3d_image_view<destT >& grad_mag2)

Definition at line 147 of file vil3d_grad_1x3.txx.

#define vil3d_grad_1x3_txx_

Definition at line 3 of file vil3d_grad_1x3.txx.

---

Function Documentation

template<class srcT , class destT >

void vil3d_grad_1x3	(	const vil3d_image_view< srcT > &	src,
		vil3d_image_view< destT > &	grad_ijk
	)

Compute gradients of an image using (-0.5 0 0.5) grad filters.

Compute gradients of an image using (-0.5 0 0.5) filters.

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

Definition at line 54 of file vil3d_grad_1x3.txx.

template<class srcT , class destT >

void vil3d_grad_1x3	(	const vil3d_image_view< srcT > &	src,
		vil3d_image_view< destT > &	grad_i,
		vil3d_image_view< destT > &	grad_j,
		vil3d_image_view< destT > &	grad_k
	)

Apply grad 1x3 gradient filter to 3D image.

Compute gradients of an image using (-0.5 0 0.5) Sobel filters.

Definition at line 91 of file vil3d_grad_1x3.txx.

template<class srcT , class gradT , class accumT >

void vil3d_grad_1x3_1dir	(	const srcT *	src,
		gradT *	grad,
		vcl_ptrdiff_t	delta_step,
		vcl_ptrdiff_t	isrc,
		vcl_ptrdiff_t	jsrc,
		vcl_ptrdiff_t	ksrc,
		vcl_ptrdiff_t	igrad,
		vcl_ptrdiff_t	jgrad,
		vcl_ptrdiff_t	kgrad,
		unsigned	ni,
		unsigned	nj,
		unsigned	nk,
		accumT
	)

Compute 1 gradient of single plane of 3D data using 1x3 grad filters.

Definition at line 20 of file vil3d_grad_1x3.txx.

template<class srcT , class destT >

void vil3d_grad_1x3_mag_sq	(	const vil3d_image_view< srcT > &	src,
		vil3d_image_view< destT > &	grad_mag2
	)

Compute square gradient magnitude of 3D image.

Use (-0.5,0,+0.5) filters in i,j,k

Definition at line 130 of file vil3d_grad_1x3.txx.