Parent Topic: IMAGE COMMANDS
IF [n1,n2,...,n11] n1: Destination image plane <last image> n2: Source image plane <n1> n3-n11: Weights for filtering <see table>The weights and their defaults are as follows for a 3X3 matrix:
weights: defaults:
n3 n4 n5 -1 -1 -1
n6 n7 n8 -1 8 -1
n9 n10 n11 -1 -1 -1