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From: nbvs@cl.cam.ac.uk (Nicko van Someren)
Newsgroups: comp.compression
Subject: Re: Compression for LINE DRAWINGS?
Message-ID: <1991Apr5.142013.3343@cl.cam.ac.uk>
Date: 5 Apr 91 14:20:13 GMT
References: <1991Mar30.210354.8076@cec1.wustl.edu> <2909@wn1.sci.kun.nl>
Reply-To: nbvs@cl.cam.ac.uk (Nicko van Someren)
Organization: U of Cambridge Comp Lab, UK
Lines: 20


>aj6818@cec1.wustl.edu (Albrecht!) writes:
>
>>I need some suggestions for compression of B/W line drawings for an on line
>>data base.  I don't care if the compression is slow, but I would like to 
>>do decompression on the fly and directly to the screen.  A slightly lossy
>>technique would be OK as the original images aren't all that good.  
>
>>With so much white space there has got to be something that will be fairly
>>compact!!

On real line drawings the best way to store it is probably as lines.
Why don't you vectorise the lines and store the vectors.  It should
decompress quite fast...



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| Nicko van Someren, nbvs@cl.cam.ac.uk, (44) 223 358707 or (44) 860 498903    |
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