Re: 10bit LUTs was Colour calibration across CRT and LCD
Re: 10bit LUTs was Colour calibration across CRT and LCD
- Subject: Re: 10bit LUTs was Colour calibration across CRT and LCD
- From: William Hollingworth <email@hidden>
- Date: Wed, 17 Nov 2004 09:42:38 -0600
Rolf
While ATI boards may have 10bit DACs, that is now meaningless in a world of
digital interfaces (DVI and ADC) to LCD monitors. The interface to the
monitor is currently only 8 bits and that is where the bottleneck is. That
is why there is a big push for 10 bit LUTs in the monitor so that any LUT
corrections can be done in 10 bits instead of 8. Ideally you would have a
10 bit in->10 bit out LUT, but until a 10 bit digital interface is
standardized the best solution is 8 bit in ->10 bit out. A few monitors
like the Eizo and NEC-Mitsubishi high end models support this.
Will Hollingworth
Manager of OEM Product Design & Development Engineering
NEC-Mitsubishi Electronics Display of America, Inc.
http://www.necmitsubishi.com
At Tue, 16 Nov 2004 20:58:08 +0100, Rolf Gierling <email@hidden>
I simply can't resist, don't take it personal.
All ATI display cards have 10bit LUTs.
If you don't believe it, here is a starting point,
with programs to test on a mac.
http://www.princeton.edu/~bdsinger/Radeon10BitGamma/
It's sad that no one really uses this technology,
even Apple doesn't. (Take a look at the dates when
Ben Singer found that out)
Rolf Gierling
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