IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Multimedia Tools and Applications
Cryptanalysis of “wavelet tree quantization” watermarking scheme
IWDC'04 Proceedings of the 6th international conference on Distributed Computing
Cryptanalysis of optimal differential energy watermarking (DEW) and a modified robust scheme
IEEE Transactions on Signal Processing
Multirate filter banks and transform coding gain
IEEE Transactions on Signal Processing
Cocktail watermarking for digital image protection
IEEE Transactions on Multimedia
Analysis of linear prediction, coding, and spectral estimation from subbands
IEEE Transactions on Information Theory
Joint wavelet and spatial transformation for digital watermarking
IEEE Transactions on Consumer Electronics
Some general methods for tampering with watermarks
IEEE Journal on Selected Areas in Communications
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
Optimal differential energy watermarking of DCT encoded images and video
IEEE Transactions on Image Processing
Wavelet tree quantization for copyright protection watermarking
IEEE Transactions on Image Processing
Peak Transform for Efficient Image Representation and Coding
IEEE Transactions on Image Processing
A new, fast, and efficient image codec based on set partitioning in hierarchical trees
IEEE Transactions on Circuits and Systems for Video Technology
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Wavelet tree based watermarking algorithms are generally using the wavelet coefficient energy difference for copyright protection and ownership verification. Since there are cryptanalysis-based methods addressed for successfully attacking wavelet tree based watermarking algorithm of wavelet tree quantization (WTQ), it is the motivation in this research to devise a scheme to improve WTQ's robustness. Furthermore, the combination of wavelet tree based watermarking techniques, chaotic system for block based scrambling techniques have not been seen or few discussed in the literatures. The study in this paper has presented such research findings and contribution for the academic and industry fields. Therefore, a chaotic system is adopted for WTQ to counteract the attacks in this paper. The digital image is first split into many blocks and the chaotic system is applied to scramble the image before the implementation of WTQ. The experimental results demonstrate the effectiveness of using chaotic system to enhance the security of WTQ, especially, to resist cryptanalysis attack. In addition, such mechanism also works for other advanced wavelet tree based algorithms like wavelet tree group modulation (WTGM) and dynamic energy enabled differentiation (called DEED) watermarking techniques.