A new wavelet based logo-watermarking scheme
Pattern Recognition Letters
Adaptive watermark mechanism for rightful ownership protection
Journal of Systems and Software
A Semi-fragile Watermarking Tolerant of Laplacian Sharpening
CSSE '08 Proceedings of the 2008 International Conference on Computer Science and Software Engineering - Volume 03
A novel CRT-based watermarking technique for authentication of multimedia contents
Digital Signal Processing
Analysis and design of secure watermark-based authentication systems
IEEE Transactions on Information Forensics and Security
Reversible data embedding using a difference expansion
IEEE Transactions on Circuits and Systems for Video Technology
Robust Lossless Image Data Hiding Designed for Semi-Fragile Image Authentication
IEEE Transactions on Circuits and Systems for Video Technology
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Reversible watermarking can be applied to the protection for important digital media, such as medical and military image, it allows the watermark to be extracted and the original image to be restored completely, but reversible watermarking with stronger robustness is seldom discussed in existing literature. In this paper, a novel reversible watermarking algorithm based on chaotic system is proposed; chaotic system is not only used to search space of reversibility of the scheme, but also used to randomly select the position of watermarking embedding. Consequently, the proposed scheme achieves larger threshold space of reversibility and better performance of security. For some specific thresholds, the proposed algorithm is not only reversible, but also has stronger robustness against image compression. The experimental results show that the ergodicity and sensitivity to initial values of chaotic system play an important role in reversible watermarking algorithm, and the proposed scheme can achieve balance between reversibility and robustness with the help of chaotic system.