| 基于小波变换的鲁棒型多水印算法研究 |
| |
| 引用本文： | 刘俊清,耿新清.基于小波变换的鲁棒型多水印算法研究[J].沈阳电力高等专科学校学报,2011(2):168-170. |
| |
| 作者姓名： | 刘俊清 耿新清 |
| |
| 作者单位： | [1]沈阳工程学院自动控制工程系,沈阳110136 [2]鞍山师范学院数学与计算机系,辽宁鞍山114005 |
| |
| 摘 要： | 提出了一种基于离散小波变换的多水印算法.首先在嵌入前对水印做Arnold置乱处理,然后对置乱后的水印图像及其原图像进行离散小波变换分解,同时保留小波分解后水印的高频系数,并在水印检测过程中作为密钥使用.最后对原图像小波变换后的中频系数嵌入相应的水印.实验结果表明,上述算法能够经受住剪切、噪声、滤波、压缩等处理,具有很强的鲁棒性.
|
| 关 键 词： | 离散小波变换 多水印 Arnold置乱 |
Algorithm of robust multi-watermarking on DWT |
| |
| LIU Jun-qing,GENG Xin-qing.Algorithm of robust multi-watermarking on DWT[J].Journal of Shenyang Electric Power Institute,2011(2):168-170. |
| |
| Authors: | LIU Jun-qing GENG Xin-qing |
| |
| Affiliation: | 1.Department of Automation Control Engineering,Shenyang Institute of Engineering,Shenyang 110136,China; 2.Department of Mathematics and Computer,Anshan Normal University,Anshan 114005,China) |
| |
| Abstract: | A kind of watermark algorithm with gray-level image based on DWT is presented.Firstly,the watermark is treated with Arnold scrambling transformation before embedded.Then,the scrambled watermark image and original image are decomposed by DWT method.At the same time,the high frequency coefficient of the decomposed watermark is reserved and used as the secret key in the detection process.Finally,the corresponding watermark is embedded into the middle frequency coefficient of wavelet-transformed original image.The experimental results show that the above algorithm is robust against cutting,noise,filtering and compression. |
| |
| Keywords: | DWT multi-watermarking Arnold scramble |
| 本文献已被 维普 等数据库收录！ |
|
