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A blind watermarking algorithm resisting to geometric transforms based on SVD |
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| Authors: | Xiuguang Li Xiaoyuan Yang |
| Affiliation: | (1) Department of Electrical and Computer Engineering, University of Windsor, Windsor, ON, Canada, N9C 1M2;(2) Department of Mathematics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India |
| Abstract: | A new watermarking algorithm resisting to geometric transformation based on singular value decomposition (SVD) in logarithm polar coordinate is proposed. The log-polar mapping (LPM) is used to resist rotation and scaling attacks, and the odd-even quantization algorithm is used to embed watermark so it can be extracted without the original host image. The experiments show that the proposed algorithm not only resists various geometric attacks but also is robust enough to the common signal processing. |
| Keywords: | blind watermarking singular value decomposition(SVD) logarithm polar coordinate resist to geometric transform |
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