Dear Johan--

Johan Henriksson wrote:

>        compression does NOT imply reduced image quality
 >
> but it does for sure increase the speed of disk transfer, and if you
> know what you are doing, some but not all compression algorithms can
> *optionally* trade high frequency information (noise) for disk space.
> avoid using the terminology that "compression" destroys images because
> it confuses non-experts into thinking they should be storing the images
> uncompressed. there's a factor 2-10 to gain in disk space/speed for
> normal images.

Could you please elaborate about storing images compressed?  Are you 
talking about lossless compression or (as it sounds like from the 
context) lossy compression?

Thanks--

Martin Wessendorf
-- 
Martin Wessendorf, Ph.D.                   office: (612) 626-0145
Assoc Prof, Dept Neuroscience                 lab: (612) 624-2991
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