core/vil/algo/vil_greyscale_erode.h File Reference

Perform greyscale erosion on images. More...

#include <vil/algo/vil_structuring_element.h>
#include <vil/vil_image_view.h>

Go to the source code of this file.

Functions
template<class T >
T	vil_greyscale_erode (const T *im, const vcl_ptrdiff_t *offset, unsigned n)
	Return minimum value of im[offset[k]].
template<class T >
T	vil_greyscale_erode (const vil_image_view< T > &image, unsigned plane, const vil_structuring_element &element, int i0, int j0)
	Return max of pixels under structuring element centred at (i0,j0).
template<class T >
void	vil_greyscale_erode (const vil_image_view< T > &src_image, vil_image_view< T > &dest_image, const vil_structuring_element &element)
	Erodes src_image to produce dest_image (assumed single plane).

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Detailed Description

Perform greyscale erosion on images.

Author:

Tim Cootes

Definition in file vil_greyscale_erode.h.

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Function Documentation

template<class T >

T vil_greyscale_erode	(	const T *	im,
		const vcl_ptrdiff_t *	offset,
		unsigned	n
	)		[inline]

Return minimum value of im[offset[k]].

Definition at line 13 of file vil_greyscale_erode.h.

template<class T >

T vil_greyscale_erode	(	const vil_image_view< T > &	image,
		unsigned	plane,
		const vil_structuring_element &	element,
		int	i0,
		int	j0
	)		[inline]

Return max of pixels under structuring element centred at (i0,j0).

Checks boundary overlap

Definition at line 26 of file vil_greyscale_erode.h.

template<class T >

void vil_greyscale_erode	(	const vil_image_view< T > &	src_image,
		vil_image_view< T > &	dest_image,
		const vil_structuring_element &	element
	)

Erodes src_image to produce dest_image (assumed single plane).

dest_image(i0,j0) is the minimum value of the pixels under the structuring element when it is centred on src_image(i0,j0)

dest_image(i0,j0) is the maximum value of the pixels under the structuring element when it is centred on src_image(i0,j0)

Definition at line 15 of file vil_greyscale_erode.txx.