``Salt_and_Pepper_Removal'' - remove salt and pepper (spike) noise

VFX name:

iSP_Removal

IMPROMPTU Equivalent:

Salt_and_Pepper_Removal

purpose:

If a voxel deviates from its local-neighborhood's mean intensity by > (``spread''$\times$ %10) $\times$ mean, then change the voxel's intensity to the value of the mean. This is meant to reduce the noise from wildly diverging voxels (i.e., spikes).

input:

An 8-bit volume.

output:

An 8-bit volume.

parameters:

Default parameters menu is

x_filter_dimension = 3
y_filter_dimension = 3
z_filter_dimension = 3
spread(%x*10 from mean)= 1
iterations = 1

The parameters ``x_filter_dimension'', ``y_filter_dimension'', and ``z_filter_dimension'' specify the size of the local neighborhood.

comments:

1.

This is a moderately fast operation.

[VFX name:] iSP_Removal [IMPROMPTU Equivalent:] Salt_and_Pepper_Removal

purpose:

If a voxel deviates from its local-neighborhood's mean intensity by > (``spread''$\times$ %10) $\times$ mean, then change the voxel's intensity to the value of the mean. This is meant to reduce the noise from wildly diverging voxels (i.e., spikes).

input:

An 8-bit volume.

output:

An 8-bit volume.

parameters:

Default parameters menu is

x_filter_dimension = 3
y_filter_dimension = 3
z_filter_dimension = 3
spread(%x*10 from mean)= 1
iterations = 1

The parameters ``x_filter_dimension'', ``y_filter_dimension'', and ``z_filter_dimension'' specify the size of the local neighborhood.

comments:

1.

This is a moderately fast operation.