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From: laser-lovers@uw-beaver
Newsgroups: fa.laser-lovers
Subject: Re: non-rectangular pixel tilings
Message-ID: <872@uw-beaver>
Date: Wed, 20-Feb-85 16:50:57 EST
Article-I.D.: uw-beave.872
Posted: Wed Feb 20 16:50:57 1985
Date-Received: Fri, 22-Feb-85 09:01:42 EST
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Organization: U of Washington Computer Science
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From: Lynch.ES@XEROX.ARPA

The Leitz TAS (Textur-Analyse-System) uses a hexagonal tiling, by
shifting rows a half-pixel.  This thing digitizes video images from a TV
camera looking through a microscope (usually) and applies various image
processing algorithms in firmware to them, so it can be programmed to
make a silk purse look like a sow's ear, etc.  Leitz has technical
literature on the properties and advantages of the hexagonal scheme.

Gene Lynch