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Clone stamping to clean a green screen shot?
Hi,
I have a locked off green screen shot with excessive shadow in one area. Unfortunately the person being filmed walks through that area. I can clone stamp some green into the shadowy part, but when he walks though, I thought there was a way to tell AE to replace the pixels if they change dramatically…
I remember seeing a tutorial on this somewhere, with a guy walking down an alleyway past a car, but I can’t find it now! I realise I could animate a load of masks, but I thought there might be a better way?
Also, I’m using CS4, so I suspect that makes it harder (no rotoscoping tool?).
Anyway, any advice would really be appreciated. Screen grab below, with red circles around the problem area…
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1 Reply
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This page [link] has tons of useful info for rotoscoping in CS4 – which is what you’re going to have to do if you can’t reshoot with proper lighting.
You might also look into the tutorial on Super Tight Junk Mattes [link].
You could try a difference key, but unless you were shooting with a camera that records in 4:4:4 color resolution and was shot with very low grain this often doesn’t work well.
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(The ‘Great’ stands for ‘Not So Great, in fact, Extremely Humble’)No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.
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