Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!dali.cs.montana.edu!milton!wiml
From: wiml@milton.u.washington.edu (William Lewis)
Newsgroups: alt.sources.d
Subject: Re: Compressing alt.sex.pictures files
Message-ID: <6888@milton.u.washington.edu>
Date: 30 Aug 90 19:57:46 GMT
References: <1990Aug29.154719.17301@zorch.SF-Bay.ORG> <1990Aug29.211755.15899@murdoch.acc.Virginia.EDU> <1990Aug30.100256.14356@zorch.SF-Bay.ORG>
Organization: University of Washington, Seattle
Lines: 18

In article <1990Aug30.100256.14356@zorch.SF-Bay.ORG> xanthian@zorch.SF-Bay.ORG (Kent Paul Dolan) writes:
> 2) (for the adaptive method) a penalty in that the start-up unit
>    frequency estimate is incorrect and all units are initially
>    considered equally likely;

   Well, since with a differenced image we already know it's going to
have lots of small values and fewer large values, this could be coded
into the algorithm as a default startup table ...

> 6) an explicit EOF unit 257th encoding (in the case of encoding
  
  If the image size is stored in the header, this is not necessary as
the decoder can simply stop reading when it's filled its buffer.


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