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- Newsgroups: comp.sources.bugs
- Path: sparky!uunet!spool.mu.edu!yale.edu!jvnc.net!princeton!udel!louie!eplrx7!cristy
- From: cristy@eplrx7.es.duPont.com (Cristy)
- Subject: Re: Widespread bug in "compress" and GIF compressors
- Message-ID: <1992Dec19.081927.22648@eplrx7.es.duPont.com>
- Keywords: LZW, compress, GIF
- Organization: DuPont Central Research & Development
- References: <BzEzAM.3Gv.2@cs.cmu.edu>
- Date: Sat, 19 Dec 1992 08:19:27 GMT
- Lines: 11
-
- In article <BzEzAM.3Gv.2@cs.cmu.edu> tgl+@cs.cmu.edu (Tom Lane) writes:
- >I've discovered a small bug in the standard Unix compress(1) utility.
- >The bug is also present in many derived implementations of LZW compression,
- >notably common GIF graphics file writers such as ppmtogif and xv.
- >
-
- I posted a message about this bug last year. I discovered the bug when
- I was writing the GIF routines for ImageMagick. I wondered why
- ImageMagick produced smaller GIF files than ppmtogif...
- --
- cristy@dupont.com
-