morphological binary opening by a ball More...
Detailed Description
morphological binary opening 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: rounded 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
Example:
openball cells 3 cells_openball
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| cells | cells_openball |
