计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (13): 133-135.DOI: 10.3778/j.issn.1002-8331.2009.13.039

• 网络、通信、安全 • 上一篇    下一篇

利用HVS特性与混沌映射的图像水印算法

杨恒伏1,伍雁鹏2,田祖伟1   

  1. 1.湖南第一师范学院 信息技术系,长沙 410205
    2.邵阳学院 网络中心,湖南 邵阳 422000
  • 收稿日期:2008-03-11 修回日期:2008-05-30 出版日期:2009-05-01 发布日期:2009-05-01
  • 通讯作者: 杨恒伏

Digital image watermarking algorithm using HVS masking characteristics and chaotic maps

YANG Heng-fu1,WU Yan-peng2,TIAN Zu-wei3   

  1. 1.Information Technology Department,Hunan First Normal College,Changsha 410205,China
    2.Campus Network Center,Shaoyang University,Shaoyang,Hunan 422000,China
  • Received:2008-03-11 Revised:2008-05-30 Online:2009-05-01 Published:2009-05-01
  • Contact: YANG Heng-fu

摘要: 提出一种基于混沌序列的图像空域水印算法。首先通过亮度、边缘、纹理特性计算出每象素视觉因子;然后由视觉因子和混沌映射确定每象素水印嵌入比特位;最后通过替换方式嵌入水印。水印提取时不需原始图像的参与,实验表明算法具有较好的水印透明性,并对一般信号处理攻击是鲁棒的。

关键词: 图像水印技术, 混沌映射, 人类视觉系统

Abstract: A spatial domain image watermarking algorithm based on chaotic maps is proposed.Fist,the visual factor of each pixel is computed by the use of luminance,edge,texture characteristics of the host image,and then the embedding bit can be determined by the visual factor and chaotic maps,and finally the watermark bit is embedded into the image by simple bit substitution.The watermark extraction needn’t resort to the original image.Simulation results demonstrate that the embedded watermark is invisible and the watermarking scheme is robust to common signal processing operations.

Key words: digital image watermarking, chaotic map, human visual system