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Improving the performance of wavelet domain spread spectrum watermarking systems using space-time block codes

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3 Author(s)
Sutunc, M. ; Fac. of Eng. & Natural Sci., Sabanci Univ., Istanbul, Turkey ; Keskinoz, M. ; Karabat, C.

In this paper, we propose to use Alamouti's orthogonal space-time block code to improve the performance and the robustness of the spread spectrum watermarking systems. After employing a space-time block code, we embed the coded watermark sequence into the host image in discrete wavelet transform domain. Simulation results show that the use of the space-time block codes considerably increases the robustness of the spead spectrum watermarking system under various attacks.

Published in:

Signal Processing and Communications Applications Conference, 2009. SIU 2009. IEEE 17th

Date of Conference:

9-11 April 2009