| 基于图像子块DCT系数对的盲检测数字水印 |
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| 引用本文： | 路玲,孙新德.基于图像子块DCT系数对的盲检测数字水印[J].郑州大学学报(工学版),2010,31(2). |
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| 作者姓名： | 路玲 孙新德 |
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| 作者单位： | 郑州航空工业管理学院计算机科学与应用系,河南,郑州,450015 |
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| 基金项目： | 河南省科技厅国际科技合作项目(094300510077) |
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| 摘 要： | 提出一种新的基于Logistic加密的鲁棒性盲检测数字水印算法.利用Logistic映射特性产生的混沌序列加密生成水印序列;结合人眼的视觉系统(HVS)对原始图像中的子块进行选择;在每个被选择的子块上,根据鲁棒性要求选择DCT系数;通过对相邻系数对的大小进行比较嵌入水印.实验结果表明,本算法具有鲁棒性强、安全性高、透明性好、可以盲提取等特点,可有效用于数字媒体的版权保护.
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| 关 键 词： | Logistic映射 数字水印 鲁棒性 盲检测 |
A Blind Detection Digital Watermarking Algorithm Based on Pairs of Blocks DCT Coefficients |
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| LU Ling
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SUN Xin-de.A Blind Detection Digital Watermarking Algorithm Based on Pairs of Blocks DCT Coefficients[J].Journal of Zhengzhou University: Eng Sci,2010,31(2). |
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| Authors: | LU Ling SUN Xin-de |
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| Affiliation: | LU Ling,SUN Xin-de (Department of Computer Science , Application,Zhengzhou Institute of Aeronautical Industry Management,Zhengzhou 450015,China) |
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| Abstract: | A new blind detection digital watermarking algorithm based on Logistic mapping is proposed in this paper,which can be more effective for digital media copyright protection.At first watermarking image is encrypted by the chaotic sequence generated by Logistic mapping.According to the human visual system(HVS) some small blocks with size 8*8 that have more texture complexity will be chosen.,In each chosen sub-block some DCT coefficients are selected effectively in accordance with the property of common digital... |
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| Keywords: | logistic mapping digital watermark robustness blind detection |
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