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

["akram mohamed" <akram_salama@hotmail.com>]

regarding question 3, i have one more application to add

licensing: a date can be inserted in a version of software. the software detects expiry of this date and disable its use till new license is purchased

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From: Le Thi Hoang Ngan <lthngan_qn@yahoo.com>
To: <watermarking@watermarkingworld.org>
Subject: [WM]: Why do watermarking algorithms develop in image than in audio?
Date: Wed, 14 Mar 2007 04:49:02 -0700 (PDT)
>Hi all,
>I have some wonders in watermarking field:
>
>1. why do watermarking algorithms develop in image
>than in audio?
>2. How can I measure (evaluate) the effect of
>watermarking algorithm (in image and audio). If you
>can, share me your documents.
>3. How is the watemarking applied in the practice?
>Tell me more applications besides authentication,
>secret information communication.
>
>Thanks a lot.
>Have a good day.
>
>
>
>
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