On mer 19 décembre 2007, AnMaster wrote:

>
> Seems like someone compressed a jpeg compressed image instead of basing
> them all on a looseless original. The result is that the artifacts add up
> and the images look bad. For best result all the smaller images should be
> generated from a looseless image. And I think the full sized images should
> use png or very high quality jpeg.
>
> Regards,
>
> Arvid Norlander

That is the problem with JPEG, 
however we must choose, 
the available space is not infinite , 
for instance the original Rescue image was .ppm 1800x1440 7.4 Mo, 
the jpeg one 1600X1200 only 141 ko



-- 
Gérard
http://pagesperso-orange.fr/GRTux/


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