pull the rgb edges of an image outwards based on it's a control channel.
EdgeExtend
Updated: 30 September 2011
Author: frank
Compatible Nuke versions: 6.0 or later
Compatibility:
The edge colour is achieved by repeatedly unpremultiplying and blurring the image which helps get some sort of colour information into motion blurred keys for example:
The control matte os typically an eroded version of the alpha channel
Check the tooltips for more info: