The Volume Convolve 3×3×3 operation convolves the voxels of a volume.
This takes each 3×3×3 neighbourhood of a voxel, multiplies it by a set of coefficients, and combines the result into a total. This can be used as a basic primitive for doing edge detection or neighbourhood counting.
The volume primitives to be convolved.
Z-1, Z=0, Z+1 Kernel
The coefficients for the 3×3×3 neighbourhood are split into separate 3×3 arrays, specifying the x/y coefficients for each z-plane.
The coefficients will be divided by the average of all of the coefficients, resulting in an operation that preserves magnitude.
How to combine the voxels after they've been multiplied by the coefficients. Add Abs will take the absolute value of each voxel-coeffecient product prior to adding them up.