matlab/mex/distancetransform.c File Reference

Matlab wrapper for disttransform_deadreckoning(). More...

#include "mex.h"
#include "mex_utils.h"
#include <stdlib.h>
#include "array.h"
#include "distances.h"
#include "imageproc.h"

Go to the source code of this file.

Functions
void	mexFunction (int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])

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Detailed Description

Matlab wrapper for disttransform_deadreckoning().

This distance-transform (DT) of a binary image includes at each pixel the shortest distance to the closest nonzero point in the input image.

This implementation uses the dead-reckoning algorithm from

	 @article{grevera2004dead,
  	   title={{The" Dead reckoning" signed distance transform}},
	   author={Grevera, G.J.},
	   journal={Computer Vision and Image Understanding},
	   volume={95},
	   number={3},
	   pages={317--333},
	   year={2004}
	 }
	 

The MATLAB-interface is as follows:

[ dt ] = distancetransform( binarymatrix ); The input array is treated as binary, i.e. if a value is >0, it is assumed to be 1, else it is 0. Input must be double.

Definition in file distancetransform.c.

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Function Documentation

void mexFunction	(	int	nlhs,
		mxArray *	plhs[],
		int	nrhs,
		const mxArray *	prhs[]
	)

Definition at line 39 of file distancetransform.c.