Image2Graph.c File Reference

Functions
VGraph	VImage2Graph (VImage src, VGraph dest, VDouble xmin, VDouble xmax, VBoolean link, VBoolean border)
	Convert a raster image to graph representation.

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Detailed Description

Convert a raster image to graph representation

Each foreground voxel is represented by a node in the output graph. Optionally, only border voxels are used. Optionally, 26-adjacent voxels are connected by arcs. Voxels of grey value '0' are assumed to be background voxels.

Author:

Gabriele Lohmann, MPI-CBS

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Function Documentation

VGraph VImage2Graph	(	VImage	src,
		VGraph	dest,
		VDouble	xmin,
		VDouble	xmax,
		VBoolean	link,
		VBoolean	border
	)

Convert a raster image to graph representation.

Parameters:

src	input image (any repn)
dest	output graph
xmin	voxels with values below 'xmin' are assumed to be background.
xmax	voxels with values above 'xmax' are assumed to be background. If both xmin and xmax equal zero then these thresholds are ignored.
link	if 'TRUE', then 26-adjacent voxels are linked by an arc.
border	if 'TRUE', convert only border voxels.