Re: 24-bit displays

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#128

From: Mark Dobie
Date: Tue, 21 Jul 1992 15:11

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In <1992Jul15.044034.27437@ms.uky.edu> sean@ms.uky.edu (Sean Casey) writes:
>In article <BrEKwI.1nL@syd.dms.CSIRO.AU> chriss@dmssyd.syd.dms.CSIRO.AU (Chris Skelsey) writes:
>:Additionally, we would like to be able to alter the lookup tables for each of
>:the Red, Green and Blue channels.

>Hrm. I thought 24 bit color meant you didn't have lookup tables. Is
>that not the case?

Even with 24 bit colour, lookup tables between the frame store and
output are useful for previewing changes to an image. You can
interactively fiddle with colour, brightness, contrast etc and when
you are satisfied remap the image through the lookup tables back onto
the frame store. This is much easier (and faster) than changing the
actual image data all the time.

				Mark.
-- 
Mark Dobie                              M.R.Dobie@uk.ac.soton.ecs (JANET)
University of Southampton		M.R.Dobie@ecs.soton.ac.uk (The World)

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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!uknet!icdoc!sot-ecs!mrd
From: mrd@ecs.soton.ac.uk (Mark Dobie)
Newsgroups: sci.image.processing
Subject: Re: 24-bit displays
Message-ID: <12334@ecs.soton.ac.uk>
Date: 21 Jul 92 15:11:55 GMT
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