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Blind image watermarking based onsample rotation with optimal detector

Sahraeian, S. M. E ; Sharif University of Technology

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  1. Type of Document: Article
  2. Abstract:
  3. This paper present a simple watermarking approach based on the rotation of low frequency components of image blocks. The rotation process is performed with less distortion by projection of the samples on specific lines according to message bit. To have optimal detection Maximum Likelihood criteria has been used. Thus, by computing the distribution of rotated noisy samples the optimum decoder is presented and its performance is analytically investigated. The privilege of this proposed algorithm is its inherent robustness against gain attack as well as its simplicity. Experimental results confirm the validity of the analytical derivations and also high robustness against common attacks. © EURASIP, 2009
  4. Keywords:
  5. High robustness ; Image blocks ; Low-frequency components ; Maximum likelihood criteria ; Optimal detection ; Optimal detectors ; Optimum decoder ; Algorithms ; Optimization ; Rotation ; Signal processing ; Image watermarking
  6. Source: European Signal Processing Conference, 24 August 2009 through 28 August 2009, Glasgow ; 2009 , Pages 278-282 ; 22195491 (ISSN)
  7. URL: http://ieeexplore.ieee.org/document/7077765