Canny.c File Reference

Functions
void	VCanny3d (VImage src, int dim, VImage *gradb, VImage *gradr, VImage *gradc)
void	VCanny2d (VImage src, int dim, VImage *gradr, VImage *gradc)

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Detailed Description

3D Canny edge detection

Reference:

J. Canny (1986). "A computational approach to edge detection", IEEE-PAMI, Vol.8, No.6. pp.679--698.

Author:

Gabriele Lohmann, MPI-CBS

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Function Documentation

void VCanny3d	(	VImage	src,
		int	wsize,
		VImage *	gradb,
		VImage *	gradr,
		VImage *	gradc
	)

Parameters:

src	input image
*gradb	output gradient in slice direction (float repn)
*gradr	output gradient in row direction (float repn)
*gradc	output gradient in column direction (float repn)
wsize	dimension of convolution kernel

void VCanny2d	(	VImage	src,
		int	wsize,
		VImage *	gradr,
		VImage *	gradc
	)

Parameters:

src	input image
*gradr	output gradient in row direction (float repn)
*gradc	output gradient in column direction (float repn)
wsize	dimension of convolution kernel