mS_RestoreGrain

This gizmo lets you preserve the original grain from your plate after keying.

Sometimes making a matte after Denoising then copying it into your RGB plate just doesnt cut it. I usually like the fine edges result I get from the IBK keyer and would like to get back that original grain i removed from my foreground elements after keying.  

How to install:

Extract the contents to your .nuke folder then put these lines in your menu.py

#mS_RestoreGrain
toolbar = nuke.menu('Nodes')
mS_Tools = toolbar.addMenu('mS_Tools', icon='LittleHelpers.png')
mS_Tools.addCommand('mS_RestoreGrain', 'nuke.nodes.mS_RestoreGrain()', icon='Grain.png')