| 基于混沌加密的DCT域盲数字水印算法 |
| |
| 引用本文： | 信丽萍,段普.基于混沌加密的DCT域盲数字水印算法[J].计算机安全,2008(4):19-20. |
| |
| 作者姓名： | 信丽萍 段普 |
| |
| 作者单位： | 1. 北方民族大学电气信息工程学院,宁夏,银川750021
2. 南洋理工大学电力与电子工程学院,新加坡,639798 |
| |
| 基金项目： | 北方民族大学校级科研项目 |
| |
| 摘 要： | 该文提出了一种基于混沌加密的盲数字水印算法,对水印信息采用混沌加密,并根据载体图像在DCT域中能量分布,通过比较中频子域的能量差异来实现水印的嵌入和盲提取。实验表明,该算法具有较好的不可见性,对JPEG压缩、剪切、替换、噪声污染等图像处理均具有较好的稳健性。
|
| 关 键 词： | 混沌加密 DCT变换 数字水印 盲数字水印 |
| 修稿时间： | 2007年11月23 |
Based on DCT and Chaotic Encryption Blind Digital Watermarking Algorithm |
| |
| XIN Li-ping,DUAN Pu.Based on DCT and Chaotic Encryption Blind Digital Watermarking Algorithm[J].Network & Computer Security,2008(4):19-20. |
| |
| Authors: | XIN Li-ping DUAN Pu |
| |
| Abstract: | Based on DCT and chaotic encryption blind digital watermarking algorithm is proposed in this paper, where the watermark is permuted by a chaotic encryption . And a new watermarking embedding method based on differential energy of the middle frequency bands of the DCT coefficients of the original image by comparing the selected subdomains is introduced in this paper. Experimental results show the proposed technique has good imperceptibility. And could survive several kinds of image processing, such as JPEG compression, cropping, switchover, noise, etc. |
| |
| Keywords: | chaotic encryption DCT transform digital watermarking Blind digital watermarking |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
