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From: jim@baroque.Stanford.EDU (James Helman)
Newsgroups: comp.graphics
Subject: Re: Info Request--Image Compression by Discrete Cosine Xform
Message-ID: <JIM.90Apr11193553@baroque.Stanford.EDU>
Date: 12 Apr 90 02:35:53 GMT
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In-reply-to: nitzberg@brauer.harvard.edu's message of 11 Apr 90 15:51:33 GMT


A image compression method which uses discrete cosine transforms was
adopted by JPEG (Joint Photographic Expert Group) under the CCITT.
There's even a startup company, called C-Cube which implements it on a
chip.  C-Cube sells a development board for the Machintosh.  One of
the founders gave a talk out here last week.  Quite impressive.   NTSC
video resolution images compressed 20:1 in real time by a $150 chip.

Jim Helman
Department of Applied Physics			6 Trillium Lane
Stanford University				San Carlos, CA 94070
(jim@thrush.stanford.edu) 			(415) 723-9127