|
|||||
|
|
| 基于DCT-Winograd快速变换的半盲水印算法 | |
| 引用本文： | 郭宗良,裴小根,徐才云,田靖,常燕.基于DCT-Winograd快速变换的半盲水印算法[J].微型机与应用,2011,30(10):51-53. |
| 作者姓名： | 郭宗良 裴小根 徐才云 田靖 常燕 |
| 作者单位： | 1. 蚌埠坦克学院信息指挥技术教研室,安徽蚌埠,233000 2. 山东大学信息科学与工程学院,山东济南250100;蚌埠坦克学院信息指挥技术教研室,安徽蚌埠233000 3. 蚌埠市高新区公安分局,安徽蚌埠,233000 |
| 摘 要： | 针对目前多数基于傅里叶变换域的方法,其抗几何攻击性能虽很好,嵌入的信息量也很大,但存在抗剪切攻击能力较差的问题,提出了一种基于离散余弦变换与Winograd快速傅里叶变换相结合的半盲水印算法,将Winograd算法分解的对角矩阵与经过DCT变换的图像块相与,产生一个新的对角矩阵,再将数字水印嵌入到该对角矩阵中,最后通过相关逆运算提取水印.实验结果表明,该方法可获得较好的图像视觉效果,对剪切、噪声等攻击皆具有较好的鲁棒性. |
| 关 键 词： | 离散余弦变换 Winograd快速变换 半盲水印算法 |
Semi-blind watermarking algorithm based on DCT-Winograd fast transform |
|
| Guo Zongliang , Pei Xiaogen , Xu Caiyun , Tian Jing , Chang Yan.Semi-blind watermarking algorithm based on DCT-Winograd fast transform[J].Microcomputer & its Applications,2011,30(10):51-53. | |
| Authors: | Guo Zongliang Pei Xiaogen Xu Caiyun Tian Jing Chang Yan |
| Affiliation: | Guo Zongliang2,Pei Xiaogen1,2,Xu Caiyun2,Tian Jing2,Chang Yan3(1.School of Information Science and Engineering,Shandong University,Jinan 250100,China,2.Faculty of Information Command Technology Teaching and Research,Bengbu Tank Institute,Bengbu 233000,3.High-tech Zone in Bengbu Public Security Bureau,China) |
| Abstract: | For the most current methods based on Fourier transform domain,although its very good performance against geometric attacks,the embedded information is also great,but there is less shear attack the problem,a discrete cosine transform and Winograd fast Fourier transform combining semi-blind watermarking algorithm,Winograd diagonal matrix decomposition algorithm and the image blocks after DCT transformation phase,resulting in a new diagonal matrix;then digital watermark embedded into the diagonal matrix,Final... |
| Keywords: | discrete cosine transform winograd fast transform semi-blind watermarking algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
