| 基于余弦变换和小波变换的数字水印算法 |
| |
| 引用本文： | 郑兆顺,李江涛.基于余弦变换和小波变换的数字水印算法[J].微计算机信息,2007,23(18):291-293. |
| |
| 作者姓名： | 郑兆顺 李江涛 |
| |
| 作者单位： | 1. 457000,河南濮阳,濮阳职业技术学院数学与信息工程系;430074,武汉,华中科技大学软件学院
2. 457000,河南濮阳,濮阳职业技术学院数学与信息工程系 |
| |
| 摘 要： | 在互联网络技术和多媒体技术普及的今天,数字水印技术已经成为目前信息安全技术领域的一个重要方向。本文提出了一种基于离散余弦变换和离散小波变换的数字水印算法,以一个长度为n服从N(0,1)正态分布的随机数序列作为水印信号嵌入到图像最具感知意义的频率部分。实验结果表明,此算法具有良好的视觉效果和鲁棒性。
|
| 关 键 词： | 数字水印 离散小波变换 离散余弦变换 |
| 文章编号： | 1008-0570（2007）06-3-0291-03 |
| 修稿时间： | 2007-05-03 |
A Kind of algorithm of digital watermarking based on discrete wavelet transform and discrete cosine transform |
| |
| ZHENG ZHAOSHUN,LI JIANGTAO.A Kind of algorithm of digital watermarking based on discrete wavelet transform and discrete cosine transform[J].Control & Automation,2007,23(18):291-293. |
| |
| Authors: | ZHENG ZHAOSHUN LI JIANGTAO |
| |
| Affiliation: | 1.Mathematics and information engineering department, Puyang Vocational Technical Colleges, Henan puyang 457000 ,China; 2.Software School, Huazhong University of Science and Technology, Wuhan, 430074, China |
| |
| Abstract: | With the development at full speed of Internet technology and multimedia technology, digital watermarking technology has already become a new direction of the safe practice field of information at present. This paper has put forward a kind of digital wa- termark algorithm based on discrete wavelet transform and discrete cosine transform, Obey length for n, N( 0, 1) the random several sequence of normal distribution is watermark signal built- in have the frequency part of perception meaning to image. test result to show, this algorithm have good visual effect and anti- interference. |
| |
| Keywords: | Digital watermarking discrete wavelet transform discrete cosine transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
