Robust DCT-SVD domain image watermarking for copyright protection: Embedding data in all frequencies

@article{Sverdlov2005RobustDD,
  title={Robust DCT-SVD domain image watermarking for copyright protection: Embedding data in all frequencies},
  author={Alexander Sverdlov and Scott D. Dexter and Ahmet M. Eskicioglu},
  journal={2005 13th European Signal Processing Conference},
  year={2005},
  pages={1-4}
}
Both Discrete Cosine Transform (DCT) and Singular Value Decomposition (SVD) have been used as mathematical tools for embedding data into an image. In this paper, we present a new robust hybrid watermarking scheme based on DCT and SVD. After applying the DCT to the cover image, we map the DCT coefficients in a zig-zag order into four quadrants, and apply the SVD to each quadrant. These four quadrants represent frequency bands from the lowest to the highest. The singular values in each quadrant… CONTINUE READING
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