W.-G. Kwak and R.-H. Park (Korea)
Data hiding, bit repetition,significant tree structure, digital watermarking, wavelettransform.
Data hiding is the technique of invisibly embedding information into host data such as image, video, and audio without degrading the perceptual quality of the host data. Data hiding techniques in the wavelet domain have advantages of multiresolution analysis. We present and analyze a novel data hiding method using bit repetition in the wavelet significant tree structure. The wavelet significant tree structure is constructed by the wavelet coding method such as the embedded zero-tree wavelet algorithm. Message bits are repetitively embedded in the wavelet band to increase the robustness. Experimental results show that the proposed algorithm is robust in practical environments.
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