Keying poorly lit green screen on dv

[Don Days]

Well of course the best solution is to re-shoot it correctly. I’ve dealt with alot of bad keys from people who think they can just stand 2 feet in front of a wrinkled green tarp and magic is gonna happen. Hopefully your situation isn’t that bad. Do you have Keylight installed? If so use that for starters. Worst case scenario you might try duplicating your layer and messing with levels and saturation until you have a pretty solid green background. Then apply your keyer and set the output to show matte. then set your bottom layers track matte to luma. Blur and choke your matte layer as needed and dont forget to use garbage mattes.
Good luck and have fun!

[Mark]

I find using the change color filter (select color and play with matching tolerance), setting it to view matte, then applying levels and blur can achieve a decent matte. From their, use this as a track matte for you original source and use the choker as needed. I have pulled keys from this method even when keylight wouldn’t touch it.

Mark

[Espnetboy3]

Whats the main purpose of a track matte. Any big difference between a mask and a matte?

[Steve Roberts]

Search the COW posts for “mask” and “track matte”. Look for my name.

Steve

[Josh Miller]

Try using multiple mattes with masks. If you can seperate the different shades of green and use the matte choker you might be able to get a good key without reshooting. Worse case scenario you could always roto it out =P

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