02 February 2005, 06:35 PM
well...when green/blue screen is not that good, i follow following steps:
if it is a NTSC video, the color output is 4:1:1, i take it to finalcut pro and export it as uncompressed 8bit 4:2:2, that way get more information about blue/green along the edge...if u dont have finalcut, ignore this step
now in shake, before matting, put a blur node and blur only the b(or green), instead of default rgba, that way it will smoothout the blue edge.
then matte it, but dont put backgroun now
give a final touch with with bluring the alpha now(blur node, this time only a)
put the background with a under node
it should work now
best of luck
02 February 2005, 04:32 PM
It seems I'm a bit bad with explaining things. And being a bit impatient. So, the answer to myself: Either put up constrast a great deal, multiple thousand percents like I did, or be smart and use the Inside node. That get's rid of the jagged edge on rotoshape. One more option is to invert the rotoshape and put it to Primattes garbage-matte input.
Sorry about the double posts, I put this reply to both of them just in case somebody else ever reads and ponders those things.
Edit: Thanks for the reply still. Even if I did not try it out and it seemed to answer another question about keying, my thanks about trying to help out. :)
02 February 2006, 05:00 PM
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