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| 基于ICA和DCT的鲁棒性盲水印算法 | |
| 引用本文： | 赵伟,陈仁安,张晓玲,游荣义.基于ICA和DCT的鲁棒性盲水印算法[J].厦门理工学院学报,2011,19(2):22-26. |
| 作者姓名： | 赵伟 陈仁安 张晓玲 游荣义 |
| 作者单位： | 1. 集美大学诚毅学院,福建厦门,361021 2. 厦门大学通信工程系,福建厦门,361005 3. 集美大学理学院,福建厦门,361021 |
| 摘 要： | 提出了一种结合独立分量分析和离散余弦变换的数字图像鲁棒性盲水印算法.首先将载体图像分解成互不重叠的8×8子块,再对各子块进行离散余弦变换,接着把经过置乱和平铺扩展处理的水印嵌入到余弦变换的低频系数上,最后进行逆余弦变换得到嵌有水印的图像.在不需要原始图像、水印和攻击类型等信息的情况下,算法实现了真正意义上的水印盲提取.仿真实验表明,该算法对JPEG压缩、尺寸缩放、滤波等攻击具有较好的鲁棒性. |
| 关 键 词： | 数字水印 独立分量分析 离散余弦变换 图像置乱 |
A Blind Robust Algorithm of Digital Watermarking Based on ICA and DCT |
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| ZHAO Wei,CHENG Ren-an,ZHANG Xiao-ling,YOU Rong-yi.A Blind Robust Algorithm of Digital Watermarking Based on ICA and DCT[J].Journal of Xiamen University of Technology,2011,19(2):22-26. | |
| Authors: | ZHAO Wei CHENG Ren-an ZHANG Xiao-ling YOU Rong-yi |
| Institution: | 1.Chengyi College,Jimei University,Xiamen 361021,China; 2.Department of Communication Engineering,Xiamen University,Xiamen 361005,China; 3.School of Sciences,Jimei University,Xiamen 361021,China) |
| Abstract: | An algorithm of digital image watermarking based on the independent component analysis（ICA） and discrete cosine transform（DCT） is proposed.Firstly,the cover image is decomposed into non-overlapping 8×8 blocks.Secondly,these blocks are transformed into discrete cosine domain.Then the watermark is embedded into its low frequency coefficient which has been rearranged by scramble and tiling extended before embedded.The watermark can be extracted correctly without any information about the original image,watermark or attack.The experiments show the robustness of the algorithm against many attacks of JPEG,filter,scale resizing etc. |
| Keywords: | digital watermarking independent component analysis discrete cosine transform image scrambling |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |