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>but is it possible to reverse the color correction in this
Why would you even want to? Sorry, but you are simply employing the wrong methodology. All you should need to do is use your keyed footage as a matte for the original footage.
could you tell me a little more
i could grasp your concept
how do i use the keyed footage as a matt for the original footage?
Create a key the best way possible, ignoring the results of the color correction - doesn't matter how purple the skin tones are.
When you are happy with the key, precompose it. Then re-add the original footage as the bottom layer. Use the pre-comp as an Alpha Matte, ie Layer 1 is original footage, layer 2 is precomped key. Set Track Matte of Layer 1 to Alpha Matte.
This will use the alpha (transparency) levels of your keyed footage to cut out the shape from the original footage.
Read more about Mattes here:
hey thank u that must be a great way to do it
i got it
can you clear one little detail?
what is happing when i do this alpha matte?
the color image sort of just merges with the puprle keyed image
so could you explain the thing that alpha matt does