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Re: [OM] Re:OT, Jpg, was: Lordly Com..........

Subject: Re: [OM] Re:OT, Jpg, was: Lordly Com..........
From: Richard Ross <richard@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 13 Jan 1999 17:38:26 +0000
At 14:35 13/01/99 +0100, OMer wrote:
>GIF sucks. It is indeed a very lossy coder. It codes only 256 colors with 
>a stupid color quantizer, therefore your image gets dithered and has the 
>un-appealing look.

Yeah - it's hopeless for photos I agree, but I was thinking more from the
point of view of whether any *more* information is lost on repeated saves.

>I strongly recommend the SPIHT coder (a wavelet based very 
>smart and fast coder) for coding your images for your own backup. It is 
>really visually transparent at 1:4 to 1:8 compression ratios. Furthermore 
>they provide a truly lossless coder on their web site, as well.

Thanks for the info and links, I'll check them out :-)

Regards
Richard



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