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From: tcs@usna.UUCP (Terry Slattery )
Newsgroups: net.graphics
Subject: Re: Difference between Computer Graphics and Image Processing
Message-ID: <113@usna.UUCP>
Date: Mon, 15-Jul-85 10:23:54 EDT
Article-I.D.: usna.113
Posted: Mon Jul 15 10:23:54 1985
Date-Received: Wed, 17-Jul-85 20:48:07 EDT
References: <305@ur-laser.uucp> <823@turtlevax.UUCP>
Organization: U.S. Naval Academy
Lines: 27

> In article <305@ur-laser.uucp> nitin@ur-laser.uucp (Nitin Sampat) writes:
> > at what point do you start separating computer
> > graphics from a field called image processing ? 

I prefer the quote made by Dr. Azriel Rosenfeld a few years ago on the
topic of computer graphics/processing/imaging:

The world can be broken into four pieces;  the first has nothing to
do with images.  The second is generally called computer graphics
and deals with generating visible images from numbers (display a line
drawn from 0,0 to 1,1).  The third, image processing, deals with
generating an image from another image, generally with certain
enhancements.  The fourth, computer vision, deals with generating
numbers from images (reading the numbers from bank checks).

So, we get:
1.	numbers -> computer -> image	(show me the line)
2.	image   -> computer -> image	(anti-alias this image)
3.	image   -> computer -> numbers	(what was that check number?)

For the net.graphics group, I think enough overlap in various areas
exist that a good number of the people will be subscribing to all
sub-groups.

	-tcs
	Terry Slattery	  U.S. Naval Academy	301-267-4413
	ARPA: tcs@brl-bmd     UUCP: decvax!brl-bmd!usna!tcs