Re: Linear-light RAW 12bit vs R'G'B' 8bit: how much better is it really?
Re: Linear-light RAW 12bit vs R'G'B' 8bit: how much better is it really?
- Subject: Re: Linear-light RAW 12bit vs R'G'B' 8bit: how much better is it really?
- From: Mark <email@hidden>
- Date: Mon, 23 Jul 2007 22:44:03 +0200
Thanks for the inputs so far, I'll read the white-paper as suggested!
Given that 11 bits linear are equal in precision to 8 bit gamma
corrected [...]
How do you reach that determination? What is the equation?
I've taken it from Charles Poynton's "Digital Video and HDTV", page 15.
Quote "Perceptual uniformity allows as few as 8 bits to be used for
each R'G'B' component. Without perceptual uniformity, each component
would need 11 bits or more."
I'm not that good at math, but perhaps there's proof for that later
on the book. Right now I am just assuming it is correct.
Cheers
Mark
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