A Reversible Watermarking Scheme for High-Fidelity Applications

Authors:
Xiang Wang;Xiaolong Li;Bin Yang;Zongming Guo
Affiliations:
Institute of Computer Science and Technology, Peking University, Beijing, China 100871;Institute of Computer Science and Technology, Peking University, Beijing, China 100871;Institute of Computer Science and Technology, Peking University, Beijing, China 100871;Institute of Computer Science and Technology, Peking University, Beijing, China 100871
Venue:
PCM '09 Proceedings of the 10th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Year:
2009

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Abstract

In this paper, we present a reversible watermarking scheme for high-fidelity applications. An improved histogram shifting technique is employed in this method to increase the embedding capacity and ameliorate the visual quality of the watermarked image. The method ensures that the modification of each pixel value is at most 1 in single pass embedding. In addition, two criteria, "near-lossless" and "almost-lossless", are used to evaluate the fidelity of our method. Experimental results and performance comparison with other recently proposed reversible watermarking schemes clearly demonstrate that our method outperforms the previous ones.