contrib/mul/vimt/vimt_sample_grid_bilin.h File Reference

Grid sampling functions for 2D images. More...

#include <vimt/vimt_image_2d_of.h>
#include <vnl/vnl_fwd.h>
#include <vgl/vgl_fwd.h>

Go to the source code of this file.

Functions
template<class imType , class vecType >
void	vimt_sample_grid_bilin (vnl_vector< vecType > &vec, const vimt_image_2d_of< imType > &image, const vgl_point_2d< double > &p, const vgl_vector_2d< double > &u, const vgl_vector_2d< double > &v, int n1, int n2)
	Sample grid from image, using bilinear interpolation.
template<class imType , class vecType >
void	vimt_sample_grid_bilin_edgena (vnl_vector< vecType > &vec, const vimt_image_2d_of< imType > &image, const vgl_point_2d< double > &p, const vgl_vector_2d< double > &u, const vgl_vector_2d< double > &v, int n1, int n2)
	Sample grid from image, using bilinear interpolation.

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Detailed Description

Grid sampling functions for 2D images.

Author:

Tim Cootes

Definition in file vimt_sample_grid_bilin.h.

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Function Documentation

template<class imType , class vecType >

void vimt_sample_grid_bilin	(	vnl_vector< vecType > &	vec,
		const vimt_image_2d_of< imType > &	image,
		const vgl_point_2d< double > &	p0,
		const vgl_vector_2d< double > &	u,
		const vgl_vector_2d< double > &	v,
		int	n1,
		int	n2
	)

Sample grid from image, using bilinear interpolation.

Grid points are p+i.u+j.v where i=[0..n1-1], j=[0..n2-1] Vector vec is resized to n1*n2*np elements, where np=image.nplanes(). vec[0]..vec[np-1] are the values from point p Samples are taken along direction v first, then along u. Points outside image return zero.

Grid points are p+i.u+j.v where i=[0..n1-1], j=[0..n2-1] Vector vec is resized to n1*n2*np elements, where np=image.nplanes(). vec[0]..vec[np-1] are the values from point p0 Samples are taken along direction v first, then along u. Points outside image return zero.

Definition at line 34 of file vimt_sample_grid_bilin.txx.

template<class imType , class vecType >

void vimt_sample_grid_bilin_edgena	(	vnl_vector< vecType > &	vec,
		const vimt_image_2d_of< imType > &	image,
		const vgl_point_2d< double > &	p0,
		const vgl_vector_2d< double > &	u,
		const vgl_vector_2d< double > &	v,
		int	n1,
		int	n2
	)

Sample grid from image, using bilinear interpolation.

Grid points are p+i.u+j.v where i=[0..n1-1], j=[0..n2-1] Vector vec is resized to n1*n2*np elements, where np=image.nplanes(). vec[0]..vec[np-1] are the values from point p Samples are taken along direction v first, then along u. Points outside image return NA.

Grid points are p+i.u+j.v where i=[0..n1-1], j=[0..n2-1] Vector vec is resized to n1*n2*np elements, where np=image.nplanes(). vec[0]..vec[np-1] are the values from point p0 Samples are taken along direction v first, then along u. Points outside image return NA.

Definition at line 148 of file vimt_sample_grid_bilin.txx.