A robust block-based image watermarking scheme using fast Hadamard transform and singular value decomposition

@article{Abdallah2006ARB,
  title={A robust block-based image watermarking scheme using fast Hadamard transform and singular value decomposition},
  author={Emad Eddien Abdallah and A. Ben Hamza and Prabir Bhattacharya},
  journal={18th International Conference on Pattern Recognition (ICPR'06)},
  year={2006},
  volume={3},
  pages={673-676}
}
We present a new approach for transparent and high rate embedding of watermarks into digital images using fast Hadamard transform (FHT) and singular value decomposition (SVD). The proposed algorithm consists of three main steps: dividing the cover image into small blocks, applying the FHT to each block, and distributing the singular values of the visual watermark image over the transformed cover blocks. The main attractive features of this approach are simplicity, flexibility in data embedding… CONTINUE READING
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