Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!cornell!rochester!rit!cci632!ritcsh!ultb!mds3399
From: mds3399@isc.rit.edu (M.D. Stokes )
Newsgroups: comp.graphics
Subject: Re: New color space
Summary: perceptual color spaces
Message-ID: <1991Jun10.124221.4374@isc.rit.edu>
Date: 10 Jun 91 12:42:21 GMT
References: <1991Jun8.002320.21449@agate.berkeley.edu>
Distribution: usa
Organization: Rochester Institute of Technology
Lines: 28

In article <1991Jun8.002320.21449@agate.berkeley.edu>, shirriff@sprite.berkeley.edu (Ken Shirriff) writes:
> I've come up with an idea for defining a color space, based on the 3 axes:
> red-neutral-green,
> blue-neutral-yellow, and
> white-neutral-black.
> 
> I reinvented the wheel?  (I checked Foley & Van Dam, but it only described
> RGB, YIQ, HSV, HLS.)
> 
yes, ANLAB was one of the first analytical perceptually uniform spaces 
to use such axes back in the early 1940's.  Other common empirical
spaces include Munsell and the Optical Society of America's color
space.  More to the point, the CIE (the international body for color 
standards) standardized CIELUV and CIELAB in 1976.  CIELAB specifically 
has the axes you discussed.  The gory reference if "Color Science" by 
Wyszecki and Stiles (Wiley, 1981).  A more palatable reference for all 
of this color stuff is "Color in Business, Science and Industry" by 
Judd and Wyszecki (Wiley, 1975) or as a quick computer graphics article 
the September 1988 issue of IEEE Computer Graphics.


Hope this helps, if not, I'll be happy to respond to any color science
questions by email.

Mike Stokes mds@judd.rit.edu
Munsell Color Science Laboratory, Center of Imaging Science
Rochester Institute of Technology
Rochester, NY 14623  (716)-475-7186