Re: JPEG [JFIF, really] compression

[P3D Larry Berlin <lberlin@xxxxxxxxx>]

>Date: Sun, 31 Aug 1997
>From: P3D  Andy Beals (Ol' Three-Eyes)  <eyes3@xxxxxxxxxxxx>
>..................
>
>Actually, as someone has sort of noted recently, the final decompressed
>image will [should] come out the same, no matter which viewing/decompression
>engine you use.  

*******  No, there is significant and noticable detail loss if you compare
on a close level using existing compression routines. There are some
programs that use JPG in a much higher quality way than other programs, but
they all have a degree of loss associated with actual compression in JPG.

>
>The big largely unexplored area for jpeg is the matter of compression engines.
>You could easily make one that did decent compression of cartoons [sudden
>color boundaries instead of gradual changes] or ones that did a decent job
>of compressing side-by-side stereo images.  
>
>It's all a small matter of programming....
>

*****  I'd love to see your results. Yes, what you say is possible, though
whatever you come up with, faces the enormous world filled already with JPG
routines that are of far less quality. However, I would use your better
method JPG for stereo! When did you say it could be ready? ;-)

Larry Berlin

Email: lberlin@xxxxxxxxx
http://www.sonic.net/~lberlin/
http://3dzine.simplenet.com/


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