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From: dhesi@bsu-cs.UUCP (Rahul Dhesi)
Newsgroups: sci.physics,comp.graphics,comp.sys.ibm.pc
Subject: Re: Color questions: color systems, "black bodies", EGB palette
Message-ID: <725@bsu-cs.UUCP>
Date: Wed, 27-May-87 11:58:52 EDT
Article-I.D.: bsu-cs.725
Posted: Wed May 27 11:58:52 1987
Date-Received: Sat, 30-May-87 06:31:29 EDT
References: <1937@druhi.ATT.COM>
Reply-To: dhesi@bsu-cs.UUCP (Rahul Dhesi)
Distribution: comp
Organization: CS Dept, Ball St U, Muncie, Indiana
Lines: 16
Summary: Claims of computer graphics displays with more than 3 colors are  advertising hype
Xref: mnetor sci.physics:1474 comp.graphics:687 comp.sys.ibm.pc:4389

Keywords:


In article <1937@druhi.ATT.COM> neal@druhi.ATT.COM (Neal D. McBurnett) writes:
>5) As I understand it, the color palatte of the IBM CGA standard is really
>	limited to 8 colors with 2 intensities of each.  On the other hand,
>	the EGA standard allows for a "64 color palatte".  Which 64 colors?
>	2 bits per primary?

This problem of terminology comes up again and again.  People, the human eye 
needs only three distinct hues for full effect.  This business of 8 colors, or 
64 colors, or 4096 colors, is advertising hype.  Your typical printer will 
tell you he or she uses only three colors, with a little black thrown in.  The 
rest is all a question of INTENSITY.

Remember, THREE colors, and a large number (or 16, or 64, or 4096) of
INTENSITIES.
-- 
Rahul Dhesi         UUCP:  {ihnp4,seismo}!{iuvax,pur-ee}!bsu-cs!dhesi