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Keying and Color Correction: in which order?

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Stephen Norrington
Keying and Color Correction: in which order?
on Jun 22, 2013 at 3:49:29 pm

Hi there, when keying a series of green screen elements into a sequence of shots, should the elements be color matched and corrected before keying (for consistency but perhaps changing the green screen color) or after (when one can take a more global overview of the interplay of FG and BG for the whole sequence)?

Stephen Norrington

Artproject Independent Production


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Roland R. Kahlenberg
Re: Keying and Color Correction: in which order?
on Jun 22, 2013 at 5:07:29 pm

You shouldn't want to tweak the green's unless its meant to help in the keying process ... . So, it's best to key first then grade the footage.

HTH
RoRK

Intensive mocha & AE Training in Singapore and Other Dangerous Locations

Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects CS6 ACE


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Stephen Norrington
Re: Keying and Color Correction: in which order?
on Jun 22, 2013 at 5:17:27 pm

Thanks for the speedy response. I'll create a master reference grade and use that as a guide for grading all the elements after they've been keyed. Nice one, appreciated.

Stephen Norrington

Artproject Independent Production


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Todd Kopriva
Re: Keying and Color Correction: in which order?
on Jun 22, 2013 at 6:14:08 pm

I agree with Roland.

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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Tudor "Ted" Jelescu
Re: Keying and Color Correction: in which order?
on Jun 23, 2013 at 11:11:37 am

Like Roland and Todd I key first and grade after. I normally use at least two passes- one on the individual layers to bring everything to similar values and then a overall grade on an Adjustment layer on top to blend all elements.

Tudor "Ted" Jelescu
Senior VFX Artist


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Stephen Norrington
Re: Keying and Color Correction: in which order?
on Jun 23, 2013 at 4:51:18 pm

Thanks for the thoughts, I was confused by the elements I have because they are rather inconsistent (green screen color variations and the grading on the photographed content changes shot to shot) but seeing how my material "breaks down" a bit when color-corrected first then keyed I'm gonna do what you do: key first then use per-element CCs, then adjustment layers for overall shot CCs - cheers :-)

Stephen Norrington

Artproject Independent Production


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