Bilinear profile sampling functions for 2D images. More...

#include "vil_sample_profile_bilin.h"
#include <vil/vil_bilin_interp.h>

Macros
#define	VIL_SAMPLE_PROFILE_BILIN_INSTANTIATE(imType, vecType)

Functions
bool	vil_profile_bilin_in_image (double x0, double y0, double x1, double y1, const vil_image_view_base &image)
	This function should not be the same in bicub and bilin. More...

template<class imType , class vecType >
void	vil_sample_profile_bilin (vecType *v, const vil_image_view< imType > &image, double x0, double y0, double dx, double dy, int n)
	Sample along profile, using safe bilinear interpolation. More...

template<class imType , class vecType >
void	vil_sample_profile_bilin_edgena (vecType *v, const vil_image_view< imType > &image, double x0, double y0, double dx, double dy, int n)
	Sample along profile, using bilinear interpolation. More...

Detailed Description

Bilinear profile sampling functions for 2D images.

Author: Tim Cootes

The vil bicub source files were derived from the corresponding vil bilin files, thus the vil bilin/bicub source files are very similar. If you modify something in this file, there is a corresponding bicub file that would likely also benefit from the same change.

Definition in file vil_sample_profile_bilin.hxx.

Macro Definition Documentation

◆ VIL_SAMPLE_PROFILE_BILIN_INSTANTIATE

#define VIL_SAMPLE_PROFILE_BILIN_INSTANTIATE	(	imType,
		vecType
	)

Value:

template void vil_sample_profile_bilin(vecType* v, \
                                       const vil_image_view<imType >& image, \
                                       double x0, double y0, \
                                       double dx, double dy, \
                                       int n); \
template void vil_sample_profile_bilin_edgena(vecType* v, \
                                              const vil_image_view<imType >& image, \
                                              double x0, double y0, \
                                              double dx, double dy, \
                                              int n)

Definition at line 149 of file vil_sample_profile_bilin.hxx.

Function Documentation

◆ vil_profile_bilin_in_image()

bool vil_profile_bilin_in_image	(	double	x0,
		double	y0,
		double	x1,
		double	y1,
		const vil_image_view_base &	image
	)

inline

This function should not be the same in bicub and bilin.

Definition at line 19 of file vil_sample_profile_bilin.hxx.

◆ vil_sample_profile_bilin()

template<class imType , class vecType >

void vil_sample_profile_bilin	(	vecType *	v,
		const vil_image_view< imType > &	image,
		double	x0,
		double	y0,
		double	dx,
		double	dy,
		int	n
	)

Sample along profile, using safe bilinear interpolation.

Sample along profile, using bilinear interpolation.

Profile points are along the line between p0 and p1 (in image co-ordinates). Vector v is resized to n*np elements, where np=image.n_planes(). v[0]..v[np-1] are the values from point p Points outside image return zero.

Definition at line 39 of file vil_sample_profile_bilin.hxx.

◆ vil_sample_profile_bilin_edgena()

template<class imType , class vecType >

void vil_sample_profile_bilin_edgena	(	vecType *	v,
		const vil_image_view< imType > &	image,
		double	x0,
		double	y0,
		double	dx,
		double	dy,
		int	n
	)

Sample along profile, using bilinear interpolation.

Profile points are along the line between p0 and p1 (in image co-ordinates). Vector v is resized to n*np elements, where np=image.n_planes(). v[0]..v[np-1] are the values from point p Points outside image return NA.

Definition at line 97 of file vil_sample_profile_bilin.hxx.

Macros