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weird color shift when transcoding

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Sascha Engel
weird color shift when transcoding
on Jul 11, 2018 at 11:35:02 am

Hi Everybody,

Lately, I discovered a weird color shift (mainly more orange tones shift towards reddish), when
encoding my ProResHQ Masters to MOV files (H264).
It's quiet obvious and unpleasant.
Did a test run then with Compressor to see the difference:
Also in Compressor was a slight shift, but minimal compared to MC.

What is wrong?
A hefty Color Shift like this should not happen in a Pro Encoding App.

Thanx for any enlightenment into this issue.









Sascha Engel
KINO KITCHEN Studio
http://www.kinokitchen.co.il
http://www.youtube.com/taikang


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Chris Wright
Re: weird color shift when transcoding
on Jul 12, 2018 at 7:18:33 pm

do they shift when imported back into premiere?


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Sascha Engel
Re: weird color shift when transcoding
on Jul 13, 2018 at 4:40:00 am

Hi Chris,

No connection with PPro:
I export my final graded film from DaVinci as ProResHQ.
All colours still look like they should, one on one like in the reference monitor.
Then I use MC to transcode to MOV H264 with 25MB/sec.
This result then shows a clear colour shift towards red in all skin tons and a slight reduction of orange tone everywhere else.
Re importing this files back to DaVinci confirms this also as clear movement in the scopes when comparing to the original ProResHQ file.

When doing compression though with Compressor, it stays spot on same colours.
So, it's clearly a problem with MC.


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