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Question about superblacks and superwhites in AE 5.5

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Bill Ravens
Question about superblacks and superwhites in AE 5.5
on Aug 8, 2011 at 1:15:39 pm

I've tried to search for an answer to this, but, it seems to be such a huge source of confusion that I can't understand what I've read.
My question relates to the color space used within AE 5.5. When bringing a Sony MXF file into AE, it is tagged with the YCrCb color space.I've imported a REC709 Color Bar pattern with pluge bars. No matter what I do, AE clips the pluge bars below 0%. If I import the same REC709 color bar pattern in to Media Composer, I can perform a CC to recover the super blacks. Because AE clips the superblacks when I import, I can't recover the shadow detail info.Even if I check "Preserve RGB" the superblack values are clipped.
Is there a way around clipping superblack and superwhite values?

edit: it would appear AE maps the imported color bars to RGB0-255, clipping values below zero and above 255. Media Composer imports the same color bars to RGB16-235, allowing access to the superblacks and whites.


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Darby Edelen
Re: Question about superblacks and superwhites in AE 5.5
on Aug 8, 2011 at 8:34:15 pm

Are you working in a project that is set to a 32bpc color depth?

Darby Edelen


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Bill Ravens
Re: Question about superblacks and superwhites in AE 5.5
on Aug 9, 2011 at 4:11:20 am

no, this is a standard 8-bit.



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Darby Edelen
Re: Question about superblacks and superwhites in AE 5.5
on Aug 9, 2011 at 4:44:06 am

[Bill Ravens] "no, this is a standard 8-bit."

Touché, I should've phrased that differently: You should try working in 32bpc.

Darby Edelen


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Bill Ravens
Re: Question about superblacks and superwhites in AE 5.5
on Aug 9, 2011 at 12:12:49 pm

AHAH!
Many thanx, Darby! I'm not a wise-axx...just thickheaded, sometimes. That worked.



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