Wavelet tree quantization for copyright protection watermarking.

Shih-Hao Wang; Yuan-Pei Lin

doi:10.1109/tip.2004.823822

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Wavelet tree quantization for copyright protection watermarking.

Shih-Hao Wang·Yuan-Pei Lin

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Abstract

This paper proposes a wavelet-tree-based blind watermarking scheme for copyright protection. The wavelet coefficients of the host image are grouped into so-called super trees. The watermark is embedded by quantizing super trees. The trees are so quantized that they exhibit a large enough statistical difference, which will later be used for watermark extraction. Each watermark bit is embedded in perceptually important frequency bands, which renders the mark more resistant to frequency based attacks. Also, the watermark is spread throughout large spatial regions. This yields more robustness against time domain geometric attacks. Examples of various attacks will be given to demonstrate the robustness of the proposed technique.

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Algorithms Computer Security Data Compression Hypermedia Image Enhancement Image Interpretation, Computer-Assisted Patents as Topic Pattern Recognition, Automated Product Labeling Quality Control Signal Processing, Computer-Assisted Comparative Study Evaluation Study Journal Article Research Support, Non-U.S. Gov't Validation Study

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Shih-Hao Wang, Yuan-Pei Lin. 2004. Wavelet tree quantization for copyright protection watermarking.. https://doi.org/10.1109/tip.2004.823822

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