newbie:how to make color correction only on matte element

Making headway in this great program, but haven't figured out how to adjust only the beauty element of my image and not the greenscreen matte too. I'm sure this is really simple, but poking around through docs and videos haven't seen it.

Many thanks,
Rick

what about adding a alpha multiply after cc, before merge?

Making headway in this great program, but haven't figured out how to adjust only the beauty element of my image and not the greenscreen matte too. I'm sure this is really simple, but poking around through docs and videos haven't seen it.

Many thanks,
Rick

What is the setup you have right now? Which keyer are you using, are you doing the composit straight inside the keyer or are you using a seperate merge. You'll need to provide a little more info so that we can help you better.

In most nodes (for instance CC) there is a set of checkboxes to toggle which channels you want the node to operate on. You can just untoggle Alpha:



Edit: oh, and I should say for nodes that don't feature this option you can usually pre-divide and then post-multiply your alpha to get around whatever corrections are being made to the RGB channels.