J4

• 研究论文 • 上一篇    

基于Hermit矩阵扰动特性的图像数字水印

张博1;李小斌2;侯彪3
  

  1. (1. 西北大学 数学系,陕西 西安 710069;
    2. 西北工业大学 应用数学系,陕西 西安 710072;
    3. 西安电子科技大学 智能信息处理研究所,陕西 西安 710071)

  • 收稿日期:2007-10-10 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20
  • 通讯作者: 张博

Digital image watermark algorithm based on Hermit matrix perturbation

ZHANG Bo1;LI Xiao-bin2;HOU Biao3
  

  1. (1. Dept. of Mathematics, NWU, Xi’an 710069, China;
    2. Dept. of Applied Mathematics, NWPU, Xi’an 710072, China;
    3. Research Inst. of Intelligent Information Processing, Xidian Univ., Xi’an 710071, China)
  • Received:2007-10-10 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20
  • Contact: ZHANG Bo

摘要: 为解决图像数字水印中透明性和稳健性之间的矛盾,提出了一种图像数字水印的新方法.该方法根据Hermit矩阵的较大特征值对应的特征向量对扰动不敏感的特性,选取宿主图像的较大特征值作为水印. 这样的水印是完全透明的,而且能够很好地抵抗对图像的噪声、几何、滤波等攻击.

关键词: 矩阵扰动, 数字水印, 透明性, 稳健性

Abstract: In order to solve the contradiction between the robustness and invisibility of the digital image watermark, a new digital image watermarking algorithm is presented. Based on the character that the greater singular value of the Hermit matrix is not sensitive under some perturbation, the algorithm chooses the greater singular value of the original image as the watermark, which is both invisible and has better resistivity to the attack of noise, geometry and filt on the image.

Key words: matrix perturbation, digital watermark, invisibility, robustness

中图分类号: 

  • TN918