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Re: [WM]: What is different bewteen watermarking and steganography



Huynh,

The primary difference between watermarking (WM) and steganography
(steg) is implementation and intent of use.

In short:

Under Steganography, the embedded message may have nothing to do with the carrier.  The carrier is simply a mechanism to pass the
message.  The object of the communication channel is the hidden message.

Under Watermarking, the embedded information can be considered an attribute of the carrier and conveys additional information or
properties about the carrier.  The primary object of the communication channel is the carrier itself.

--

Neil

Neil F. Johnson, Ph.D.
http://www.jjtc.com
nfj@jjtc.com

>
>Subject: [WM]: What is different bewteen watermarking and steganography
>   From: huynh hoc <huynhhoc@yahoo.com>
>   Date: Fri, 24 Feb 2006 18:49:21 -0800 (PST)
>     To: <watermarking@watermarkingworld.org>
>
>   Hi everyone,
>
>  I am confusing about the terminology "watermarking" and
> "steganography". Could you help me to classify these terminology. What is
>different bewteen watermarking and steganography?
>
>  I am looking forward to hearing from you.
>  Thank you very much
>
>  Huynh Thai Hoc
>
>  University of Technology - HCMC - VietNam
>


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