Compression of pictures (e.g. star fields)

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From: phys169
Date: Wed, 26 Aug 1992 02:53

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Is there a name for the method of compressing video signals where the distance
before a certain amount of brightness change is stored, instead of the
brightness at regular points? And, any books/papers/etc about it, especially
relating to astronomical pictures.

Thanks for any help,
Mark Aitchison, University of Canterbury, New Zealand.

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Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!wupost!waikato.ac.nz!canterbury.ac.nz!phys169
Newsgroups: comp.compression.research
Subject: Compression of pictures (e.g. star fields)
Message-ID: <1992Aug26.145343.534@csc.canterbury.ac.nz>
From: phys169@csc.canterbury.ac.nz
Date: 26 Aug 92 14:53:43 +1200
Organization: University of Canterbury, Christchurch, New Zealand
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