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From: dmmartindale@watcgl.UUCP (Dave Martindale)
Newsgroups: net.graphics
Subject: Re: Image processing articles?
Message-ID: <2423@watcgl.UUCP>
Date: Thu, 29-Aug-85 23:06:23 EDT
Article-I.D.: watcgl.2423
Posted: Thu Aug 29 23:06:23 1985
Date-Received: Sat, 31-Aug-85 05:43:55 EDT
References: <301@ur-laser.uucp> <274@aoa.UUCP>
Reply-To: dmmartindale@watcgl.UUCP (Dave Martindale)
Organization: U of Waterloo, Ontario
Lines: 18
Keywords: Image processing, computer graphics

A common way of dividing up the world of computers and pictures is:

computer graphics: producing an image from numbers. Examples: the picture may
		symbolically display something of interest about the numbers,
		or the numbers mathematically describe an image that is to
		be created.
	
image analysis: obtaining some sort of numbers from an image.  The image is
		usually obtained from the "real world", and the task at hand
		is to obtain information from it - how many blood cells are
		on the slide, whether anything has moved since the previous
		frame, how many acres of corn are in this picture?
	
image processing: processing an image in some way to produce another image.

Described this way, all three fields are disjoint.  The image analysis
and image processing people have a lot in common when it comes to obtaining
and processing their input images.