I've found the Green Limited by the Average of Red and Blue technique very useful and has given me the best spill suppression results so far:

http://ae.tutsplus.com/tutorials/workflow/advanced-spill-suppression-methods/

Daniel Griffin
www.kubikafilms.com

2013/3/9 Chris Meyer <chris@crishdesign.com>

Many thanks, and absolutely nothing personal, but I have a client confidentiality issue on these particular shots that I don't want to tread anywhere near.

 - Chris

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

On Mar 9, 2013, at 12:48 PM, Andrew Embury wrote:

I'd love to have a crack at that too Chris!

Cheers. 

- Andrew

On 2013-03-09, at 2:13 PM, Jack Tunnicliffe <jack@javapost.ca> wrote:

Chris:

Can you send me a frame. I'd be curious if I could focus in on the area you're talking about. Maybe a screen grab with some arrows or pointers showing me the area as well as a frame of the original, like a tiff.

Jack Tunnicliffe

Java Post Production

402, 2206 Dewdney ave.

Regina, SK

Canada

S4R 1H3

P. 306-777-0150

cell. 306-536-4321

www.javapost.ca

______________

On Mar 9, 2013, at 10:36 AM, Chris Meyer <chris@crishdesign.com> wrote:

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

________________________________________________
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.  

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