Color Keying Problem

[Stefan Hinze]

hey,

i think its a problem of the codec.
how ever, try this to solve the problem:

use the AlphaMask of the key and aply it to the duplicated footage (on the dulicate you dont need a keyer!)

dublicate the clip
keep the clips at the same time // synced
remove the key from the lower copy
set the lower clip to get the alpha from the upper one
if it dosn´t work – precompose the upper one

hope this helps
stefan

[Ben G unguren]

I concur with Stefan’s suggestion. One addition: go ahead and use the key on the bottom layer, but tell it not to use the alpha. If you’re using Keylight, there is a view setting called “Color Corrected Footage” — this allows Keylight to remove all the spill, etc, but doesn’t actually do any cutting. I suggest you use the simplest (that is, default-est) settings possible for this lower layer. The color problems you’re experiencing are probably from the keyer trying to remove spill while simultaneously keying a substantial range of the image….

Ben Unguren
Motion Graphics & Editing
http://www.mostlydocumentary.com

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[Mostafa Talebi]

Hey man Thank you

your solution got to work, but it continues to have a transparent green bg instead of a full transparent bg.
I’m using Primatte Keyer plugin.
In fact with key light plugin I go completely O.K with no cutting-in error and everything looks fine.

[Ben G unguren]

Sounds like keylight is the solution to use for this particular shot! Glad you got it to work.

Ben Unguren
Motion Graphics & Editing
http://www.mostlydocumentary.com

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