Re: digimarc question

Have a look here:
http://en.wikipedia.org/wiki/Digital_watermark

A digital watermark can be invisible. Its intent is to add hidden
information that one can use to prove creation (and thus copyright) of a
digital image.

Its part of the technology known as image steganography
http://en.wikipedia.org/wiki/Steganography

Steghide might work:
http://sourceforge.net/projects/steghide/

Its free, works on unix and windows

This technology has a bit of a bad name because of its alleged use by
terrorists.

http://www.wired.com/news/print/0,1294,41658,00.html

Gord

On Thu, 13 Jan 2005, Susan Huber wrote:

> Hello Marc,
> Can you tell me and the rest how one can access the digimarc process? Does it protect against illegal use of your images?
> Thanks, Susan
> ----- Original Message -----
> From: Mike Klemmer
> To: alt-photo-process-l@sask.usask.ca
> Sent: Thursday, January 13, 2005 5:19 PM
> Subject: Re: digimarc question
>
>
> I've heard of people putting a small watermark in the corner of just one of the color layers of their image. That way it is invisible yet can be used as proof of ownership if needed.
>
> Michael Klemmer
> ----- Original Message -----
> From: Barry Kleider
> To: alt-photo-process-l@skyway.usask.ca
> Sent: Thursday, January 13, 2005 5:53 PM
> Subject: digimarc question
>
>
> I'm getting ready to send some of my digital images out into the world and I'd like to at least protect my copyrights - even if I can't ensure they won't be borrowed/sampled/ripped...
>
> Big dogs pee on a tree to mark their spots. What's the best way to mark my images?
>
> I've thought about adding a visible text layer... That seems kinda tacky.
>
> I've looked at the digimarc website... Does anyone have experience using digimarc?
>
> Any other suggestions?
>
> Barry
>
>
>
> --------------------------------------------------------------------------------
>
>

---------------------------------------------------------
Gordon J. Holtslander Dept. of Biology
holtsg@duke.usask.ca 112 Science Place
http://duke.usask.ca/~holtsg University of Saskatchewan
Tel (306) 966-4433 Saskatoon, Saskatchewan
Fax (306) 966-4461 Canada S7N 5E2
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Received on Thu Jan 13 21:33:23 2005