东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (2): 193-196.DOI: -

• 论著 • 上一篇    下一篇

一种小波域图像水印算法

陈东明;朱志良;姜慧研;常桂然;   

  1. 东北大学软件学院;东北大学软件学院;东北大学计算中心;东北大学计算中心 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-02-15 发布日期:2013-06-24
  • 通讯作者: Chen, D.-M.
  • 作者简介:-
  • 基金资助:
    辽宁省自然科学基金资助项目(20042020)

Digital watermarking algorithm based on wavelet for images

Chen, Dong-Ming (1); Zhu, Zhi-Liang (1); Jiang, Hui-Yan (2); Chang, Gui-Ran (2)   

  1. (1) School of Software, Northeastern University, Shenyang 110004, China; (2) Computing Center, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-02-15 Published:2013-06-24
  • Contact: Chen, D.-M.
  • About author:-
  • Supported by:
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摘要： 提出了一种基于小波域的图像数字水印算法.该算法将相互正交的两种水印(鲁棒水印和参考水印)同时添加到经过DWT后的载体图像小波系数中,然后用小波反变换得到添加了水印的图像.用提取出的参考水印来估计图像所受到的攻击,由于提取出的鲁棒水印所受的攻击与参考水印受到的攻击一样,因此可以估计出原始的鲁棒水印.通过对嵌入水印的图像进行加入噪声、滤波、压缩以及裁剪等大量图像处理等试验,均能正确检测出水印,表明该算法具有很好的感知效果和鲁棒性.

关键词: 数字水印图像, 人类视觉系统(HVS), 小波, 离散小波变换(DWT), 阈值

Abstract: A new digital watermarking algorithm based on wavelet was proposed for images. In the algorithm the two kinds of orthogonal watermarkings, i.e., robustness and reference watermarkings, are added to the wavelet coefficients of carrier images simultaneously after discrete wavelet transform (DWT) and then the images with watermarkings are obtained by inverse discrete wavelet transform (IDWT). The extracted reference watermarkings are used to estimate the attacks on the images so as to estimate further the original robustness watermarkings, since the attacks on both extracted robustness and reference watermarkings are the same. Test results showed the good sensitivity and robustness of the algorithm for the best-known attacks such as noise interference, filtration, image compression/clipping and other image processing actions.

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