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From: arctngnt@amiganet.chi.il.us (Bowie J Poag)
Newsgroups: comp.multimedia
Subject: Dithering..
Message-ID: <arctngnt.1470@amiganet.chi.il.us>
Date: 31 May 91 01:05:47 GMT
Organization: Amiga Network Information Systems
Lines: 27



Dithering is how to make a shade of color from two or more seperate colors. 
For instance, pick up a newspaper.. Youll see that greys are NOT infaCt grey
ink.. But rather black and white dots. This is an example of pretty simple
dithering..


You can simulate green by putting a yellow pixel, and a blue pixel next to
eachother... get up to your TV sometime, and look real close at it. All the
colors you see are represented by differing amounts of red, green abd blue
little lights. Every color in the spectrum is composed of differing amounts of
red green and blue..


For instance, with a machine like an Amiga. You have 4096 basic shades.. You
can combine a combination of any two of those colors and create another, so in
effect, you can simulate 16.7 million some odd colors.


Its all an optical illusion, really. Dithering is just the practice of
creating new shades from patterns of different colored pixels.


Arc
(Now, Whats quantifying? Even I dont know that one..Does it have room for
Jell-O?)