A Digital Watermarking Algorithm for Color Images Based on DCT

  title={A Digital Watermarking Algorithm for Color Images Based on DCT},
  author={Ting Zhang and Yi Du},
  journal={2009 International Conference on Information Engineering and Computer Science},
  • Ting Zhang, Yi Du
  • Published 2009 in
    2009 International Conference on Information…
An algorithm, which is based on the DCT domain, embedding a watermarking color image into a host color image is proposed to protect the copyrights of color images. The coordinates of R,G and B components are scrambled by logistic mapping before those components are embedded. Then the scrambled R,G and B components in color spaces are used as watermarking sequences. The host image blocks are classified by the luminance, contrast and textures. The algorithm uses some characteristics of human… CONTINUE READING


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