I have a video where the yellow wall above the green screen is visible. Is it possible to do two alpha channels, one that covers the strip of yellow wall, and the other for the green screen. Note when I have used the colour selector in alpha channel advanced, it also wants to put the green screen on my face as my skin colour is quite close to the wall colour I guess. So I am wondering if you can force an area that the alpha channel must looks at and not go out of? And then use a second alpha channel for the green screen. Is this possible please?
Thanks so much.