EOS wrote:
> > Date: Thu, 4 Jan 2001 07:22:10 -0000
> > From: "Bob Talbot" <[EMAIL PROTECTED]>
> > Subject: Re: EOS 1.6x multiplier of D30
> >
> > > Those 8.9 MB are uncompressed. Tiffs will most assuredly
> > > be readable for a long time to come, but that is not
> > > so sure for any compression algorithm.
I somehow doubt that JPEG/EXIF will become unreadable any time soon (and
I'm particularly unconcerned because I've written a JPEG encoder/decoder
and therefore know how simple they really are).
> > With TIFFs the degree of compression down does depend
> > on the scene (it uses run-length encoding right).
>
> No, LZW as far as I understand.
Actually, either/both. TIFF packbits is essentially a modified run length
encoding scheme, but LZW is also (optionally) available. In either case,
the compression performance is indeed highly scene-dependent. LZW really
isn't such a good idea by the way, unless you LIKE paying royalties to
Unisys...
-- Patrick
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