Alpha with convolution matrix
CLG_AlphaMatrix
Updated: 21 May 2025
Author: Claudio Greco
Compatible Nuke versions: 11.0 or later
Compatibility:
CLG_AlphaMatrix v1.2
Generates an alpha channel using only convolution matrix operations.
The output is clamped in 0-1 range and black/white inversion is available.
This tool is also very useful when applied multiplicatively over a background to recover details.
The 'Influence' parameter allows you to control how much each of the red, green, and blue channels contributes to the result of the matrix operations