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Mask only things in foreground?

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Ken Maxwell
Mask only things in foreground?
on Feb 22, 2011 at 11:08:18 pm

So I have footage where the background is static and a person is moving in the foreground. I am going to be compositing objects into the background. The problem is they are moving quickly. Is there a way to just mask the elements that are moving within the shot?
Any ideas or do I just have to roto the mask?
Thanks!


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Dave LaRonde
Re: Mask only things in foreground?
on Feb 22, 2011 at 11:26:40 pm

What's moving quickly: the subject, or the objects in the background?

Without knowing precisely what you're dealing with, the only definite thing I can tell you to do is to roto the shot. It won't be fun, easy or fast, that's for sure! Most people equate rotoscoping with great pain, something to be avoided if at all possible.

Here's some information that might help:
http://help.adobe.com/en_US/aftereffects/cs/using/WS39e706a46ad531be1172e08...

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Ken Maxwell
Re: Mask only things in foreground?
on Feb 22, 2011 at 11:46:56 pm

Ah, the answer seems like it is the Rotobrush but I only have CS4 :(
Thanks though!


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Michael Szalapski
Re: Mask only things in foreground?
on Feb 23, 2011 at 7:39:25 pm

Here is a set of resources for rotoscoping with your version of AE:
http://help.adobe.com/en_US/AfterEffects/9.0/WS39e706a46ad531be1172e0812179...

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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Ken Maxwell
Re: Mask only things in foreground?
on Feb 23, 2011 at 7:46:23 pm

Awesome,Thank you!


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