``Ultimate_Erosion'' -- ultimate erosion

purpose:

Perform an ultimate erosion on an input volume.

The voxels in the final result are labelled. The label of a voxel refers to the number of erosions (under the connectivity conditions specified by the parameter ``option = '') needed to delete the voxel. For example, if a voxel is labelled 3 and the parameter ``option = 3-D 26-connected'', then it takes 3 3x3x3 erosions to have the voxel be eroded away.

input:

An 8-bit volume.

output:

An 8-bit volume.

parameters:

Default parameters menu is

option = 3-D 26-connected
input from vol # = 0
copy output to vol # = 0

The parameter ``option = '' specifies the type of morphological operations done during the ultimate erosion. The options are

1. 3-D 26-connected -- do 3x3x3 operations
2. 3-D 6 connected -- do 6-connected operations
3. 2-D 8 connected -- do 3x3x1 operations
4. 2-D 4 connected -- do 4-connected (x-y plane) operations

comments:

 

1. This operation can be slow, since a large number of operations may be needed to erode everything away.