| 基于Logistic映射的数字水印方案 |
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| 引用本文： | 祝玉华,石凤良,杨希东,王兴元. 基于Logistic映射的数字水印方案[J]. 河北大学学报(自然科学版), 2010, 30(2) |
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| 作者姓名： | 祝玉华 石凤良 杨希东 王兴元 |
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| 作者单位： | 唐山师范学院,物理系,河北,唐山,063000;大连理工大学信息工程学院,辽宁,大连,116023 |
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| 基金项目： | 国家自然科学基金资助项目(69974008);;河北省“十·一五”规划项目(08010137) |
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| 摘 要： | 介绍了一种基于logistic映射的混沌数字水印方案,运用离散余弦变换(DCT),在频域,将混沌序列嵌入到直流分量DC中,利用人类视觉系统(HVS)的掩蔽特性,该水印自适应地隐藏到图像中,保证了水印的不可见性,并且可以检测水印的存在与否.实验结果表明,对于常见的信号失真(加入椒盐噪声、中值滤波等)和几何失真(有损压缩、剪切等),该算法具有较好的稳健性.
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| 关 键 词： | 混沌 数字水印 直流分量DC HVS DCT |
Watermarking of Digital Images Based on Logistic Mapping |
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| ZHU Yu-hua,SHI Feng-liang,YANG Xi-dong,WANG Xing-yuan. Watermarking of Digital Images Based on Logistic Mapping[J]. Journal of Hebei University (Natural Science Edition), 2010, 30(2) |
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| Authors: | ZHU Yu-hua SHI Feng-liang YANG Xi-dong WANG Xing-yuan |
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| Affiliation: | 1.Department of Physics;Tangshan Teachers College;Tangshan 063000;China;2.Department of Telecommunication and Department of Electrical Engine;Dalian Univercity of Technology;Dalian 116023;China |
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| Abstract: | The digital watermark images based on Logistic mapping are intruduced.DCT is used to embed confusional serial in DC.On account of HVS's conceal character,the watermark is self-adaptative to the image.So the invisibility of the watermark is guaranteed.In addition,the watermark can be checked.The experimental result suggests that the algorithmic stability is very good to the familiar signal distortion and geometrical distortion. |
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| Keywords: | chaos digital watermark DC HVS DCT. |
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