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A Multi-Watermarking Method Based on Wavelets Combined with the EZW Coder

Sabrina Chouchane 1 William Puech 2
2 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : In this paper, we present a new semi-blind watermarking method with secret key by embedding several watermarks in the same image. This embedding is done when the originale image is being coded by the Embedded Zerotree Wavelet (EZW) coder, a compression method based on the wavelets transform, proposed by Shapiro in 1993. Therefore, the detection processus is performed at the time of decoding the compressed watermarked image. Our algorithm, tested on several greyscale images of size 256 x 256 and for several compression rates, staies robust to intentional or unintentional image processing operation as long as the compressed watermarked image is stilling exploitable exploitable.
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Contributor : Christine Carvalho de Matos <>
Submitted on : Monday, October 16, 2006 - 8:29:43 AM
Last modification on : Wednesday, September 12, 2018 - 9:52:02 AM
Long-term archiving on: : Tuesday, April 6, 2010 - 7:44:44 PM



  • HAL Id : lirmm-00106489, version 1



Sabrina Chouchane, William Puech. A Multi-Watermarking Method Based on Wavelets Combined with the EZW Coder. IEEE ICSIT'05: International Computer Systems and Information Technology Conference, Jul 2005, Alger (Algerie). ⟨lirmm-00106489⟩



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