openingfunction.c File Reference

opening function More...

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Detailed Description

opening function

Usage: openingfunction in.pgm [dist] out.pgm

Description: This operator associates, to each point x of the input object X, the radius of the biggest ball included in X that includes x. The distance used depends on the optional parameter dist (default is 0) :

• 0: Euclidean distance (truncated)
• 1: approximate quadratic Euclidean distance
• 2: chamfer distance
• 3: exact quadratic Euclidean distance
• 4: 4-distance in 2d
• 8: 8-distance in 2d
• 6: 6-distance in 3d
• 18: 18-distance in 3d
• 26: 26-distance in 3d

Warning:

The input image in.pgm must be a binary image. No test is done.

Types supported: byte 2D, byte 3D

Category: morpho

Author:

Michel Couprie 2009