core/vil/algo/vil_dog_filter_5tap.h File Reference

Computes difference of gaussians (using a 5 tap filter). More...

#include <vil/algo/vil_gauss_filter.h>
#include <vil/vil_math.h>

Go to the source code of this file.

Functions
template<class T >
void	vil_dog_filter_5tap (const vil_image_view< T > &src_im, vil_image_view< T > &smooth_im, vil_image_view< T > &dog_im, double sigma)
	Smooth source with gaussian filter and compute difference.

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Detailed Description

Computes difference of gaussians (using a 5 tap filter).

Author:

Tim Cootes

Definition in file vil_dog_filter_5tap.h.

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Function Documentation

template<class T >

void vil_dog_filter_5tap	(	const vil_image_view< T > &	src_im,
		vil_image_view< T > &	smooth_im,
		vil_image_view< T > &	dog_im,
		double	sigma
	)

Smooth source with gaussian filter and compute difference.

Uses a 5-tap filter with gaussian width sigma.

Parameters:

sigma	Width of gaussian
smooth_im	Result of smoothing the src_im
dog_im	src_im - smooth_im

Definition at line 19 of file vil_dog_filter_5tap.h.