30 September 2011 A robust blind watermarking method using quantization of distance between wavelet coefficients
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Proceedings Volume 8285, International Conference on Graphic and Image Processing (ICGIP 2011); 82851A (2011) https://doi.org/10.1117/12.913409
Event: 2011 International Conference on Graphic and Image Processing, 2011, Cairo, Egypt
Abstract
In this paper, we propose a robust blind watermarking algorithm based on quantization of distance between wavelet coefficients for copyright protection. We divide wavelet coefficients into some blocks and obtain the first, second, and third maximum coefficients in each block. Then we do quantization between the first, and second maximum coefficients according to binary watermark bits, which effectively makes watermark to be resist against attacks. Also, we need neither the original image nor watermark to extract the embedded watermark by using the block-based watermarking method. The algorithm as a watermarking system has appropriate performance duo to imperceptibility. In addition, experimental results also show that the proposed method is quite robust under either non-geometry or geometry attacks.
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Sedigheh Ghofrani, Sedigheh Ghofrani, Mohammad Javad Sahraee, Mohammad Javad Sahraee, "A robust blind watermarking method using quantization of distance between wavelet coefficients", Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82851A (30 September 2011); doi: 10.1117/12.913409; https://doi.org/10.1117/12.913409
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