北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2002, Vol. 25 ›› Issue (1): 17-21.

• 学术论文 • 上一篇    下一篇

基于中国剩余定理的数字水印分存技术

刘jun1,罗守山1,吴秋新2,钮心忻2,杨义先2   

  1. 1.北京邮电大学理学院, 北京 100876;
    2.北京邮电大学信息工程学院, 北京 100876
  • 收稿日期:2001-04-19 出版日期:2002-01-10
  • 作者简介: 刘jun(1976—),女,硕士生
  • 基金资助:
    国家重点基础研究发展规划资助项目(G1999035805);国家杰出青年基金资助项目(69425001);国家自然科学基金资助项目(69882002,60073049)

Digital Watermark Sharing Based onChinese Remainder Theorem

LIU Jun1, LUO Shou-shan1, WU Qiu-xin2,#br# NIU Xin-xin2, YANG Yi-xian2   

  1. 1. School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    2. Information Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2001-04-19 Online:2002-01-10
  • Supported by:
     

摘要: 提出了一种基于中国剩余定理的数字水印分存算法。将秘密分存的思想引入到数字水印中,实现了基于部分内容提取水印。该算法具有很好的性能:算法隐藏效果好,凭借肉眼无法看出与原图像的差别;恢复水印时不需要原始图像;在图像受到损坏的情况下,仍可以恢复水印信息;具有很好的安全性,水印的提取受到口令限制。

关键词: 信息隐藏, 数字水印, 数据分存

Abstract: A digital watermark sharing algorithm based on Chinese remainder theorem is proposed. This algorithm is mainly used for the copyrightprotection for the static pictures. The idea of the secret sharing to the digital watermark is introduced, and the watermark recovering based on incomplete content is realized. The algorithm has some good properties. It has a good hiding effect. The difference between the original and the watermarked pictures can notbe perceived by eyes. The original picture is not needed in the recover process.The watermark can still be recovered even though the image was damaged. The algorithm has a good security. The recover process is protected by password. Anyonewho don't know the password can't recover the watermark.

Key words: information hiding , digital watermark , data sharing

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