Return-Path: Received: from cri.crishdesign.com ([198.57.142.178] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 4998543 for AE-List@media-motion.tv; Sat, 09 Mar 2013 17:30:07 +0100 Received: from 106-72-agavebb-nm.abq.nm.agavebb.net ([199.21.106.72]:49674 helo=[192.168.0.8]) by cri.crishdesign.com with esmtpa (Exim 4.80) (envelope-from ) id 1UEMlU-0000oA-Ty for AE-List@media-motion.tv; Sat, 09 Mar 2013 09:36:57 -0700 From: Chris Meyer Mime-Version: 1.0 (Apple Message framework v1283) Content-Type: multipart/alternative; boundary="Apple-Mail=_F5DE82D1-3686-4C8F-9CC7-C6AB1071006D" Subject: Re: [AE] spill suppression Date: Sat, 9 Mar 2013 09:36:56 -0700 In-Reply-To: To: "After Effects Mail List" References: Message-Id: <46B486BF-8AD8-4AD5-BE23-C87629C74170@crishdesign.com> X-Mailer: Apple Mail (2.1283) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cri.crishdesign.com X-AntiAbuse: Original Domain - media-motion.tv X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - crishdesign.com X-Get-Message-Sender-Via: cri.crishdesign.com: authenticated_id: chris@crishdesign.com --Apple-Mail=_F5DE82D1-3686-4C8F-9CC7-C6AB1071006D Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 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.=20 - Chris ________________________________________________ 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. >=20 > On Friday, March 8, 2013, Chris Zwar wrote: >=20 >=20 > 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. =20 >=20 >=20 > --=20 > -------------------------------- > Todd Kopriva > 1510 E Alder St > Seattle, WA 98122 > (206)437-2296 > -------------------------------- > "Ultimately, all knowledge is self-knowledge." > - Bruce Lee --Apple-Mail=_F5DE82D1-3686-4C8F-9CC7-C6AB1071006D Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=iso-8859-1 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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