Volume 28 Issue 5
May  2003
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SHAO Haimei, MEI Tiancan, QIN Qianqing. Spread Spectrum Watermark Based on Wavelet Transform for Digital Image[J]. Geomatics and Information Science of Wuhan University, 2003, 28(5): 626-629.
Citation: SHAO Haimei, MEI Tiancan, QIN Qianqing. Spread Spectrum Watermark Based on Wavelet Transform for Digital Image[J]. Geomatics and Information Science of Wuhan University, 2003, 28(5): 626-629.
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Spread Spectrum Watermark Based on Wavelet Transform for Digital Image

  • 1 School of Mathematics and Statistics, Wuhan University, Luojia Hill, Wuhan, China, 430072;

  • 2 School of Electronic Information, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079;

  • 3 State Key Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079

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  • Received Date: April 04, 2003
  • Published Date: May 04, 2003
    Graphical Abstract
    • Abstract
  • In this paper,we propose to insert a watermark into the spectral components of the data using techniques analogous to spread sprectrum communications,hiding a narrow band signal in a wideband channel.The watermark is difficult for an attacker to remove.It is also robust to common signal and geometric distortion such as JPEG compression cropping and scaling.
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