Re: [WM]: robustness vs. decomposition level of wavelet transform

Hello,

I did experiments concerning the same issue; robustness versus decomposition level.

whenever the decomposition level increases, the technique used gets more robust...

but this is true up to a certain level, since whenever the decomposition level increases, the payload decreases, meaning that the space left for watermarking decreases, so u can not embed a large watermark.

hope u get a clew,

regards,

Suhad Butros Hajjara

----- Original Message ----
From: Piotr Boryszek <pboryszek@wi.ps.pl>
To: watermarking@watermarkingworld.org
Sent: Thursday, May 3, 2007 10:08:21 AM
Subject: [WM]: robustness vs. decomposition level of wavelet transform

Hi,

Could You tell me what is right:

How robustness of an DWT method (KIM) depanding on wavelet decomposition level ?

Is this that higher value of decomposition is forcing better robustness or lower?

BRGRDS

Piotr Boryszek

+48 888 150 371

(0-91) 418 51 44

GG - 2656354

http://pokusa.org

kontakt@pokusa.org

pboryszek@wi.ps.pl

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