Steganalysis of JPEG2000 Steganography Based on Hilbert-Huang Transform
Tan Shun, Ji Quan Huang, Zhi Xiang Yang · Chinese Journal of Computers · 2006
In this paper,the authors present a steganalytic method to attack JPEG2000 lazy-mode steganography proposed by Su et al.With theoretical analysis and experiments,the authors discover that the vibrations of the code-block noise variance sequences of stego images generated by lazy-mode steganography are different from those of images without hiding message.So the key issue of the proposed steganalytic method is the analysis of these two categories of code-block noise variance sequences,which can distill the differences of the vibrations of them.The Hilbert transform based characteristic vectors are constructed via empirical mode decomposition of the sequences.The SVM classifier is applied to classification.The experimental results have demonstrated the correct rate to detect the hiding message achieves 90.6%.According to the best knowledge,there have not been any reports about successful attack against the JPEG2000 lazy-mode steganography before.