SimplePoint.c File Reference

Functions
int	VSimplePoint (VImage src, int b, int r, int c, int adj)

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Detailed Description

check if simple point.

check if the given voxel is a simple point. A point is simple, if its deletion does not alter the topology. This function is used in topological thinning (VThin3d). It returns 1, if simple point; it returns 0, otherwise.

Reference:

G. Bertrand, G. Malandain (1994): "A new characterization of three-dimensional simple points", Pattern Recognition Letters, Vol. 15, pp. 169--175.

Author:

Gabriele Lohmann, MPI-CBS

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Function Documentation

VBoolean VSimplePoint	(	VImage	src,
		int	b,
		int	r,
		int	c,
		int	adj
	)

Parameters:

src	input image (bit repn)
b	slice address
r	row address
c	column address
adj	neighbourhood type (6 or 26)