From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Thu, 27 Apr 2006 14:53:58 +0300
From: Harri Haataja <harriha@mail.student.oulu.fi>
Subject: Re: [9fans] PNG and APE (cntd)
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On Thu, Apr 27, 2006 at 01:43:05PM +0200, Llu=EDs Batlle wrote:
> 2006/4/27, andrey mirtchovski <mirtchovski@gmail.com>:
> > i don't care much about gif, but JPG achieves the small file size by
> > being lossy. for a test open up a JPG image in gimp or whatever
> > editor and save it again, but increase the level to 100% (instead of
> > the usual 85 or 90):
> >
> > -rw-r--r--   1 andrey  andrey  1125261 Apr 27 00:28 IMG_3735-1.jpg
> > -rw-r--r--   1 andrey  andrey   446941 Apr 26 17:18 IMG_3735.JPG
> >
> > (the images are otherwise unaltered)
>=20
> Keep on mind that jpeg with 100% quality is also lossy.

There's also lossless but informed formats. Less so for images because
the often builtin major formats won't leave room for competition.

Fair bit of info on JPEG (and more) can be found at
http://www.faqs.org/faqs/jpeg-faq/

--=20
Energizer Bunny arrested - charged with battery.