chromakey?

[smok3]

would it be possible to construct a proper chromakey using avisynth? (i have some greenscreen footage on DV - 25p)

if somebody has a 'DVchromakey' script handy and feels like sharing it that would be really nice ;)

[Wilbert]

Sure using ColorKeyMask: http://www.avisynth.org/Overlay

In v2.60 you can use Tweak for it, which will work a bit better I think.

[smok3]

should something like this work?
back = converttorgb32(directshowSource("lili-back.avi"))
front = converttorgb32(directshowSource("lili.avi"))

final = Overlay(back, front, mask=ColorKeyMask(front, $1AF00F, 0), mode="luma", opacity=100)

return (final)

well, it isn't...

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also iam unable to even see the mask alone, like:
maska=ColorKeyMask(front, $1AF00F, 0)
return(maska)
isn't working as well.
any clues?

[Wilbert]

Try highering the tolerance a bit:

maska = ColorKeyMask(front, $1AF00F, 10)
return maska