``Minimum'' - local minimum

VFX name:

iMin

IMPROMPTU Equivalent:

Minimum

purpose:

Perform a local minimum operation on an input volume. The parameters ``x_filter_dimension'', etc., define the dimensions of the local operator used.

input:

An 8-bit grayscale volume.

output:

An 8-bit grayscale volume.

parameters:

Default parameters menu is

x_filter_dimension = 3
y_filter_dimension = 3
z_filter_dimension = 3
option = rectilinear
iterations = 1

The same connectivity options are available as for erosion and dilation (see parameter ``option'').

comments:

1.

If the input volume is binary-valued, then the local minimum gives the same output as an erosion.

2.

This operation is moderately fast (similar to dilation, not erosion!).