Color channels vs. color IO channels

R
Posted By
ronviers
Aug 27, 2006
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1415
Replies
0
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Closed
What is the difference between changing the value of a color channel and changing the input/output value of a color channel? What is the source of the ‘input’ and what is the destination of the ‘output’?
I have been imagining the input/output in the ‘Levels’ dialog, among others, as a kind-of before and after transform but apparently there is more to it than that.

Thanks,
Ron

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