Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!motcsd!lance
From: lance@motcsd.csd.mot.com (lance.norskog)
Newsgroups: comp.graphics
Subject: Re: Alchemy on PC (JPEG compression): some findings
Message-ID: <2650@motcsd.csd.mot.com>
Date: 25 Jan 91 02:36:45 GMT
References: <1115@accucx.cc.ruu.nl>
Organization: Motorola CSD, Cupertino CA
Lines: 12

For my ray-trace experiments, I found that the system V 'pack' program
(which uses Huffman compression, not LZW, thus evading patent restrictions :-)
does quite a good job on GIFs.  It's possible that the GIFizer programs,
pgmtogif and a couple libraries, were lazy.  But, you can give it a shot.

The freed Berkeley program suite might include the 'compact' and 'uncompact'
programs, which are also Huffman-based.  

Huffman compression, as you all know, was the first commonly used 
data compression algorithm and doesn't drop any bits.

Enjoy.