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Wavelet-Based Semi-Fragile Watermarking with Tamper Detection
Ke DING Chen HE Ling-ge JIANG Hong-xia WANG
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/03/01
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Information Security
watermarking, semi-fragile, wavelet, tamper detection,
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In this letter, a novel wavelet-based semi-fragile watermarking scheme is presented which exploiting the time-frequency feature of discrete wavelet transform (DWT) and high sensitivity on initial value of chaotic map. We also analyze the robustness to mild modification and fragility to malicious attack of our scheme. Its application includes tamper detection, image verification and copyright protection of multimedia content. Simulation results show the scheme can detect and localize malicious attacks with high peak signal-to-noise ratio (PSNR), while tolerating certain degree of JPEG compression and channel additive white Gaussian noise (AWGN).