| 一种基于IFS的抗几何失真的数字水印算法 |
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| 引用本文： | 孙炜,曾文曲,陈鹤峰.一种基于IFS的抗几何失真的数字水印算法[J].华中科技大学学报(自然科学版),2002,30(6):61-63. |
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| 作者姓名： | 孙炜 曾文曲 陈鹤峰 |
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| 作者单位： | 1. 广州工业大学,计算机学院
2. 广州工业大学,研究生处 |
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| 基金项目： | 国家自然科学基金资助项目 (199710 18)，广东省教育厅重点项目基金资助项目 (990 0 44 ) . |
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| 摘 要： | 基于自相似分形集抗几何失真的特性，提出了一种首先将数字水信息转化为生成自相似分形集的IFS系数，然后将由该IFS生成的自相似分形图嵌入到图像中去的数字水印算法，实验结果证明该算法对几何失真以及JPEG压缩具有良好的顽健性。
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| 关 键 词： | IFS 几何失真 数字水印算法 图像处理 |
| 文章编号： | 1671-4512(2002)06-0061-03 |
| 修稿时间： | 2001年10月11 |
A digital watermarking algorithm against geometric distortion based on IFS |
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| Sun Wei Zeng Wenqu Chen Hefeng Postgraduate, Dept. of Computer,Guangdong Institute of Tech.,Guangzhou ,China..A digital watermarking algorithm against geometric distortion based on IFS[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2002,30(6):61-63. |
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| Authors: | Sun Wei Zeng Wenqu Chen Hefeng Postgraduate Dept of Computer Guangdong Institute of Tech Guangzhou China |
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| Institution: | Sun Wei Zeng Wenqu Chen Hefeng Postgraduate, Dept. of Computer,Guangdong Institute of Tech.,Guangzhou 510090,China. |
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| Abstract: | Based on the strongly robust character against geometric distortion of self similar fractal, a new algorithm for digital watermarking is put forward. The digital watermark is first transformed into coefficients of an IFS, and the self similar fractal image created by this IFS is embedded into the given image. It is tested that this algorithm is robust against geometric distortion and JPEG. |
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| Keywords: | image processing digital watermark iterated function system geometric distortion |
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