dist.c File Reference

distance transform (external) More...

Detailed Description

distance transform (external)

Usage: dist in.pgm mode out.pgm

Description: Distance to the object X defined by the binary image in.pgm . The result function DX(x) is defined by: DX(x) = min {d(x,y), y in X}.

The distance d used depends on the parameter mode :

0: approximate euclidean distance (truncated)
1: approximate quadratic euclidean distance
2: chamfer distance
3: exact quadratic euclidean distance
4: 4-distance in 2d
5: exact euclidean distance (float)
8: 8-distance in 2d
6: 6-distance in 3d
18: 18-distance in 3d
26: 26-distance in 3d
40: 4-distance in 2d (byte coded ouput)
80: 8-distance in 2d (byte coded ouput)
60: 6-distance in 3d (byte coded ouput)
180: 18-distance in 3d (byte coded ouput)
260: 26-distance in 3d (byte coded ouput)

The output out.pgm is of type long for modes < 40, of type byte for other modes.

Types supported: byte 2d, byte 3d

Category: morpho

Author:: Michel Couprie, Xavier Daragon

Generated on Fri Dec 17 11:59:37 2004 for Pink by

1.2.18