| 基于小波包分解的数字水印算法 |
| |
| 引用本文： | 潘禄生.基于小波包分解的数字水印算法[J].计算机安全,2011(4):21-24. |
| |
| 作者姓名： | 潘禄生 |
| |
| 作者单位： | 甘肃畜牧工程职业技术学院; |
| |
| 基金项目： | 国家教育部重点科学技术项目(204143); 甘肃省科技攻关项目(2GS035-A052-011) |
| |
| 摘 要： | 从小波包域水印算法的现状出发,提出了一种小波包域的图像水印算法,采用较大灰度级图像作为水印,实现了一种小波包域灰度图像水印算法,该算法在水印类型和信息量方面是一个较大的突破,对比实验结果表明,在大多数鲁棒性能攻击测试中,与传统小波包域水印算法相比,该算法提取水印的归一化相关系数NC值更大,水印性能更优越.实验结果证明了...
|
| 关 键 词： | 数字水印 小波包变换 灰度图像 分块处理 攻击 |
Digital Watermarking Algorithm based on Wavelet Packets Transform |
| |
| PAN Lu-sheng.Digital Watermarking Algorithm based on Wavelet Packets Transform[J].Network & Computer Security,2011(4):21-24. |
| |
| Authors: | PAN Lu-sheng |
| |
| Affiliation: | PAN Lu-sheng (Gansu Polytechnic College Of Animal Husbandry & Engineering,Wuwei,Gansu 733006,China) |
| |
| Abstract: | One image watermarking algorithms based on WPT are proposed in this paper,for the insufficiency of watermark algorithms in wavelet packet domain.First,an algorithm based on larger gray-level image is proposed for the deficiency in abundant information of watermarks embedded in wavelet packet domain,namely a gray-level image watermark algorithm based on WPT is implemented.Compared with traditional watermark algorithms based on WPT,it is a great breakthrough in the kinds and amount of watermark information.Un... |
| |
| Keywords: | Digital watermark WPT Gray-level image Divided into blocks Attack |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
