Mailing List AE-List@media-motion.tv ? Message #48077
From: Chris Meyer <chris@crishdesign.com>
Subject: Re: [AE] spill suppression
Date: Sat, 9 Mar 2013 09:36:56 -0700
To: After Effects Mail List <AE-List@media-motion.tv>
I have found the edge decontamination of Refine Matte very useful in some situations, but not all. The two shots causing me grief this week have 1) a large amount of spill across the bare shoulder/upper arm of an actress, and 2) more than half way across the shirt on the back of an actor who is turning. Unfortunately, when I increase the decontamination range on Refine Matte, it does something very ugly to the color channel information - what looks like a edge pixel repeat, instead of a simple removing of color from otherwise detailed pixels that I wish to keep. 

 - Chris

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Chris Meyer | Crish Design
http://www.crishdesign.com


On Mar 9, 2013, at 12:41 AM, Todd Kopriva wrote:

Check out the Refine Matte effect for the motion blur color decontamination.

On Friday, March 8, 2013, Chris Zwar wrote:


I don't know if it's technically 'spill', but motion blur is the tricky thing to deal with when keying.  If the key isn't set up well then you can end up with footage that looks like it has a spill problem in moving areas - actually the screen is showing through semi-transparent regions.  


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Todd Kopriva
1510 E Alder St
Seattle, WA 98122
(206)437-2296
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"Ultimately, all knowledge is self-knowledge."
   - Bruce Lee

 
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