C:/Users/Malcolm/Documents/temp/binaryimagelibrary/hausdorff.c File Reference

#include <stdlib.h>
#include <string.h>

Functions
int	binaryhausdorff (unsigned char *imagea, unsigned char *imageb, int width, int height, int *halfa, int *halfb)

Detailed Description

Binary Hausdorff routine

Function Documentation

int binaryhausdorff	(	unsigned char *	imagea,
		unsigned char *	imageb,
		int	width,
		int	height,
		int *	halfa,
		int *	halfb
	)

Binary Hausdorff distance.

The Hausforff distance is the maximum distance from the pixels in A not in B to the nearest pixel in B, and vice versa. So it is a measure of image similarity. The half-Hausdorff distance just considers A to B or B to A, and the Hausdorff distance is trivally the maximum of the two.

Parameters

[in]	imagea	- the first image
[in]	imageb	- the second image
	width	- image width
	height	- image height
[out]	halfa	- return for half-Hausdorff distance a to b
[out]	halfb	- return for half-Hausdorff distance b to a

Returns

The Hausdorff distance between image a and image b.

Note

Diagonal steps = 1, not Euclidean distance.

return -1 if either image empty.