graphics

[Joe Malin]

True, but lossy TIFF is (as you say) quite rare. That's why I avoided
mentioning it LOL!

Just so everyone knows, my spiel was meant to be an *introduction* to
image file formats and computer graphics. The full reference is
available to anyone who wants it, for an outrageously expensive fee and
the surrendering of major body parts as insurance against copyright
infringement <grin>.

I don't *think* you can go wrong following my reference, but if
something *does* go wrong, then you'll know that you should have listed
to Paul, and not me! 


Joe Malin
Technical Writer
(408)625-1623
jmalin at tuvox.com 
www.tuvox.com
The views expressed in this document are those of the sender, and do not
necessarily reflect those of TuVox, Inc.	

-----Original Message-----
From: techwr-l-bounces+jmalin=tuvox.com at lists.techwr-l.com
[mailto:techwr-l-bounces+jmalin=tuvox.com at lists.techwr-l.com] On Behalf
Of Paul Goble
Sent: Tuesday, May 02, 2006 3:42 PM
To: TECHWR-L
Subject: Re: graphics

Just a very minor correction, to muddy the waters:

On 5/2/06, Joe Malin <jmalin at tuvox.com> wrote:
> In contrast, TIFF uses non-lossy compression.

While in practice TIFF usually uses non-lossy compression, it *can* be
lossy.  TIFF files can use a variety of compression schemes, one of
which is JPEG!  Fortunately, lossy TIFF files are quite rare.

Some of you probably won't believe me, so here are a few references:

http://partners.adobe.com/public/developer/en/tiff/TIFF6.pdf
http://partners.adobe.com/public/developer/en/tiff/TIFFphotoshop.pdf
http://en.wikipedia.org/wiki/Image_file_formats
http://www.biij.org/2006/1/e6/e6.pdf

The last two URLs, by the way, are fairly good introductions to file
formats in general.

--
Paul Goble
Colorado Springs, Colorado
techwr-l: pgcommunication at gmail.com
everything else: pg at pgcommunication.com