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Wobbly edges from keylight

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Yuta KomineWobbly edges from keylight
by on Mar 27, 2015 at 4:30:23 pm


I was wondering if there is a way to remove wobbly edges from the image below.
I tried to key this image with keylight but the edges on the shoulders and hair cannot be smoothed in any way. They become very clear when I watch the footage in 100% size in aftereffects.


[After adding keylight]

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Declan SmithRe: Wobbly edges from keylight
by on Mar 27, 2015 at 5:59:19 pm

Have you tried adding a refine matte effect with chatter enabled and altered the smoothing ? I have had good results stabilising mattes using this. Also It may be that your keying is on the edge. I would suggest using the status of key light and alter screen gain / balance to suit to ensure you have a solid key.

Declan Smith
After Effects CS6/ FCS3 / Canon XLH1 / Canon 7D / Reason / Cubase

"it's either binary or it's not"

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Yuta KomineRe: Wobbly edges from keylight
by on Mar 28, 2015 at 12:16:53 pm

Thank you very much.
Refine matte worked very well.

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jerry wiseRe: Wobbly edges from keylight
by on Mar 27, 2015 at 8:17:38 pm

our keys looked like this when we were using 4-2-0 cameras and recording on xd-cam. if you blow up the raw footage to 400% and examine the transition between his coat and the background you'll probably see a mess of pixels...nothing nice and smooth.

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