Multipurpose image watermarking based on the wavelet tree contrast level transformation

Min-Jen Tsai*, Chang Hsing Shen, Jung Liu

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

Multipurpose image watermarking algorithms can achieve the goal of content authentication and copyright protection simultaneously. In this paper, we propose a wavelet tree based blind watermarking algorithm using contrast level transformation. The wavelet coefficients of the host image are grouped into trees. The robust watermark and the semifragile watermark are embedded by quantizing one tree and resetting the other. With level change compensation, the watermarked image has high fidelity to the original one since the difference is minimized. Both of the watermarks can be independently extracted without the original image. The simulation results have demonstrated the effectiveness of the proposed algorithm in terms of robustness compared with other wavelet tree based technique.

原文English
主出版物標題Proceedings - 2009 IEEE International Conference on Communications, ICC 2009
DOIs
出版狀態Published - 19 11月 2009
事件2009 IEEE International Conference on Communications, ICC 2009 - Dresden, Germany
持續時間: 14 6月 200918 6月 2009

出版系列

名字IEEE International Conference on Communications
ISSN(列印)0536-1486

Conference

Conference2009 IEEE International Conference on Communications, ICC 2009
國家/地區Germany
城市Dresden
期間14/06/0918/06/09

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