Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!zaphod.mps.ohio-state.edu!wuarchive!uunet!mcsun!ukc!icdoc!gks From: gks@doc.ic.ac.uk (Gary K Smith) Newsgroups: comp.compression Subject: Best Algorithms? Message-ID: <1991May20.134224.22881@doc.ic.ac.uk> Date: 20 May 91 13:42:24 GMT Organization: Dept. of Computing, Imperial College, London, UK. Lines: 17 Nntp-Posting-Host: tcsun1.doc.ic.ac.uk Does anyone know of a fairly simple and quick way to decide which of the different algoritms is the best to compress a particular file - apart from the obvious of keep on trying different ones, and select the best? I have just discovered that using different bit widths for both input and output on LZW can make a very big difference to the size of the result. Does anyone know how to decide what bit sizes are likely to be best? Thanks Gary --