Re: [WM]: Why do watermarking algorithms develop in image than in audio?

[Umut Topkara <utopkara@cs.purdue.edu>]

Le Thi Hoang Ngan wrote:
3. How is the watemarking applied in the practice?
> Tell me more applications besides authentication, secret information 
> communication.

I was pleased with the application mentioned in this BBC article:

http://news.bbc.co.uk/go/em/fr/-/2/hi/technology/6361891.stm
User takes a photo of the printed advertisement with a cell phone which decodes web page addresses or other personalized material
that were embedded in the image with a watermark.

I think we can generalize such applications as "metadata binding" (which was promoted as a promising application of watermarking by
Professor Delp of Purdue University at his talk in MMSEC 2004).

-umut

PS: The article refers to the information hiding in this scenario as steganography. But I would rather call it watermarking as the
process of taking a picture with a cell phone camera would most probably act similar to an active adversary.


______________________________________________________________________________

Watermarking Mailing List - http://www.watermarkingworld.org/ml.html
To unsubscribe send email to "majordomo@watermarkingworld.org" with
"unsubscribe watermarking YOURMAIL" in the body.
______________________________________________________________________________