medialaxis.c File Reference

medial axis transform More...

Detailed Description

medial axis transform

Usage: medialaxis in.pgm distance out.pgm

Description: Medial axis of the binary image X. If x is the center of a maximal ball included in X, then the result R(x) is equal to the smallest distance between x and a point outside X, otherwise it is equal to 0 . The distance is indicated by the parameter distance :

0: approximate euclidean distance
1: exact quadratic euclidean distance (Saito-Toriwaki's skeleton)
2: exact quadratic euclidean distance (Coeurjolly's reduced axis)
3: exact quadratic euclidean distance (Rémy-Thiel - 2d only)
4: 4-distance in 2d
8: 8-distance in 2d
6: 6-distance in 3d
26: 26-distance in 3d

The usual discrete distances are denoted by 4, 8 (2D) and 6, 26 (3D). For the euclidean distance, set distance to 0.

Types supported: byte 2d, byte 3d

Category: morpho

Author:: Michel Couprie

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

1.2.18