A wavelet-based semi-fragile watermarking with recovery mechanism

Min-Jen Tsai*, Chih Cheng Chien

*此作品的通信作者

研究成果: Conference contribution同行評審

16 引文 斯高帕斯(Scopus)

摘要

This paper studied the wavelet transformation based watermarking tamper detection and recovery scheme. By the property of discrete wavelet transform, we design the semi-fragile watermark from low-frequency band and embedding the watermark into the high-frequency band by the help of Human Visual System (HVS). The watermarked image still preserves high image quality after the embedding of the semi-fragile watermark and the image authentication system is able to locate precisely any malicious alteration made to the image. Our novel design can restore the altered or destroyed regions from the attacked images and allow the users to know what the original content was in the manipulated areas. We also analyze the robustness for mild modification like JPEG compression and channel additive white Gaussian noise (AWGN) and fragility to malicious attack. In summary, this scheme can resist the mild modifications of digital image and be able to detect the malicious modifications precisely.

原文English
主出版物標題2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
頁面3033-3036
頁數4
DOIs
出版狀態Published - 2008
事件2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008 - Seattle, WA, United States
持續時間: 18 5月 200821 5月 2008

出版系列

名字Proceedings - IEEE International Symposium on Circuits and Systems
ISSN(列印)0271-4310

Conference

Conference2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
國家/地區United States
城市Seattle, WA
期間18/05/0821/05/08

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