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HD Uncompressed Color Shift
Hey there,
I am experiencing color shift when I render back out of AE. I am bringing the footage in uncompressed and exporting uncompressed so this shouldn’t be happening. I’m curious if its a codec thing. I have tried eporting out as many different uncompressed or lossless formats and all of them have different types of color shifts. My source clips are Uncompressed 10bit YUV quicktimes. This is probably why but is there a way to render out YUV instead of RGB? Thanks in advance.
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4 Replies
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also i have color management turned off. i have never used it.
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[Jason McKee] “This is probably why but is there a way to render out YUV instead of RGB? Thanks in advance.”
AE is capable of rendering out to “YUV” codecs. All you have to do is select one of these codecs in your output module. However, AE does all of its work in RGB.
If you’re striking out without color management… why not try giving it a whirl? In your case you’ll probably want to set your Working Space to either SDTV or HDTV (Rec. 709). I’ve heard that it’s best to default to HDTV (Rec. 709) because it has a larger gamut but is otherwise similar enough to SDTV to suffice. I can’t say without a doubt whether that’s the case or not.
Try rendering a short test segment. Also, out of curiosity what is your Legacy QuickTime adjustments checkbox set to?
Darby Edelen
NVIDIA
Santa Clara, CA -
I thought I should also ask: what are you using to view your rendered file and your original file? Can you describe the shift at all?
Darby Edelen
NVIDIA
Santa Clara, CA -
first off, there’s no such thing as YUV lossless. it averages the rgb into overall brightness. second, interpret your incoming files so that they have correct color management into another correct project setting. Many files get saved with wrong color metatags in video imports. This goes for AE as well as quicktime players.
and also, moving from SDTV to HDTV color is lossy, it goes from YUV to YCbCr.
The main rule is: keep in same color space, color codec, and color bits.
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