openball.c File Reference

morphological binary closing by a ball More...

Detailed Description

morphological binary closing by a ball

Usage: openball in.pgm r [dist] out.pgm

Description: The structuring element for this opening is a ball (or a disc) of radius r. The opening consists in a erosion (erosball) followed by an dilation (dilatball). The erosion and dilation are computed by thresholding a distance map. The distance used depends on the optional parameter dist (default is 0) :

0: approximate euclidean distance
2: chamfer 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 2002

Example:

openball cells 3 cells_openball

cells cells_openball

Generated on Fri Dec 17 11:59:38 2004 for Pink by

1.2.18