Color channel subtraction/manipulation
Hi there, I just wondered if there is a way to get color channels of a layer and perform operations on those. For example, to subtract (or add) the green channel from the red channel to get something like a Color Difference Mask that can be used as a basis for easier rotoscoping in Mocha.
I know about the RGB channel viewer in the Viewer window, but it is probably not suited for that purpose.
Does anyone have a hint for me how to perform this?