[argyllcms] Display calibration
- From: Roger Breton <graxx@xxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Mon, 16 May 2011 22:54:58 -0400
Hello all,
I'm writing some code for display LUT programming and I have a question, if
I may.
On the one hand, the 8-bit video card "gammaramp" memory holds 256 discrete
entries for all three RGB output, yet, the individual values stored in those
256 entries are 16-bit values. So, effectively, is the calibration done in
16 bit or 8 bit? Are monitors actually able to render 65,536 discrete
"levels"? Like, if I store the value 65280 in, say, LUT(256), or the value
65220 or 65315, is the video board actually capable of creating a signal
matching these subtly different drive levels?
Please forgive my hardware ignorance.
Best / Roger
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