contrib/mul/vil3d/algo/vil3d_normalised_correlation_3d.h File Reference

3D normalised correlation More...

#include <vcl_compiler.h>
#include <vcl_cassert.h>
#include <vcl_cmath.h>
#include <vil3d/vil3d_image_view.h>

Go to the source code of this file.

Functions
template<class srcT , class kernelT , class accumT >
accumT	vil_norm_corr_2d_at_pt (const srcT *src_im, vcl_ptrdiff_t s_istep, vcl_ptrdiff_t s_jstep, vcl_ptrdiff_t s_kstep, vcl_ptrdiff_t s_pstep, const vil3d_image_view< kernelT > &kernel, accumT)
	Evaluate dot product between kernel and src_im.
template<class srcT , class destT , class kernelT , class accumT >
void	vil3d_normalised_correlation_3d (const vil3d_image_view< srcT > &src_im, vil3d_image_view< destT > &dest_im, const vil3d_image_view< kernelT > &kernel, accumT ac)
	Normalised cross-correlation of (pre-normalised) kernel with srcT.

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Detailed Description

3D normalised correlation

Author:

Tim Cootes

Definition in file vil3d_normalised_correlation_3d.h.

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Function Documentation

template<class srcT , class destT , class kernelT , class accumT >

void vil3d_normalised_correlation_3d	(	const vil3d_image_view< srcT > &	src_im,
		vil3d_image_view< destT > &	dest_im,
		const vil3d_image_view< kernelT > &	kernel,
		accumT	ac
	)		[inline]

Normalised cross-correlation of (pre-normalised) kernel with srcT.

Each dimension of dest is resized to (1+src_im.nX()-kernel.nX()) (a one plane image). On exit dest(x,y,z) = sum_ijk src_im(x+i,y+j,y+k)*kernel(i,j,k)/sd_under_region

Assumes that the kernel has been normalised to have zero mean and unit variance

Definition at line 79 of file vil3d_normalised_correlation_3d.h.

template<class srcT , class kernelT , class accumT >

accumT vil_norm_corr_2d_at_pt	(	const srcT *	src_im,
		vcl_ptrdiff_t	s_istep,
		vcl_ptrdiff_t	s_jstep,
		vcl_ptrdiff_t	s_kstep,
		vcl_ptrdiff_t	s_pstep,
		const vil3d_image_view< kernelT > &	kernel,
		accumT
	)		[inline]

Evaluate dot product between kernel and src_im.

Assumes that the kernel has been normalised to have zero mean and unit variance

Definition at line 19 of file vil3d_normalised_correlation_3d.h.