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Something about keying effect in AECS4

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Jacky Lam
Something about keying effect in AECS4
on Aug 9, 2009 at 5:27:27 am

I wanna capture one person's actions with background in a video. I know AE's keing effect can help doing this, but what I have read is that all those keying processes needs to have a pure color background behind the moving object, is there any methods suitable for my below situation? Thanks for you guys attention~

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The person in the middle is moving , I wanna capture only the man's action by removing the background.


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Todd Kopriva
Re: Something about keying effect in AECS4
on Aug 9, 2009 at 4:07:16 pm

This requires rotoscoping, not color keying.

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Todd Kopriva, Adobe Systems Incorporated
putting the 'T' back in 'RTFM' : After Effects Help on the Web
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Jacky Lam
Re: Something about keying effect in AECS4
on Aug 9, 2009 at 4:29:10 pm

Thanks for your kind suggestions~~And can I know the actual use of the keying in AE?


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Todd Kopriva
Re: Something about keying effect in AECS4
on Aug 9, 2009 at 11:54:50 pm

> And can I know the actual use of the keying in AE?


Color keying is used to make a background transparent (remove a background) when it is a solid color. This usually occurs because you deliberately shot the subject against a background of a solid color (like a green screen).

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Todd Kopriva, Adobe Systems Incorporated
putting the 'T' back in 'RTFM' : After Effects Help on the Web
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