Color Image of Tamper Detection and Recovery Using Block-Based Watermarking

  title={Color Image of Tamper Detection and Recovery Using Block-Based Watermarking},
  author={Na Wang and Chung-Hwa Kim},
  journal={2009 Fourth International Conference on Embedded and Multimedia Computing},
in this paper, we propose a digital watermarking scheme about color image of tamper detection and recovery using block-based watermarking. Firstly, in our watermark embedding, each color channel (R, G, and B) is divided into 2×2 non-overlapping blocks. The embedding space is created by setting the three LSBs (least significant bits) of selected each block to zero, which will hold the authentication and recovery codes. The authentication codes are obtained through doing exclusive-or (XOR) both… CONTINUE READING
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