| 一种基于有限域运算的半脆弱数字水印算法 |
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| 引用本文： | 闫晓东,王志秦,关榆君.一种基于有限域运算的半脆弱数字水印算法[J].计算机应用,2005,25(6):1294-1295,1298. |
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| 作者姓名： | 闫晓东 王志秦 关榆君 |
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| 作者单位： | 唐山学院,信息工程系,河北,唐山,063000 |
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| 基金项目： | 唐山市重点实验室资金资助项目(04360801B 1) |
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| 摘 要： | 通过分析水印图像置乱加密对数字水印算法的脆弱性影响，提出了一种基于有限域运算的抗JPEG压缩半脆弱数字水印算法。实验证明该算法对固定系数的JPEG压缩有较好的鲁棒性，并对图像的恶意篡改有较好的脆弱性。
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| 关 键 词： | 数字水印 置乱加密 有限域 半脆弱水印算法 |
| 文章编号： | 1001-9081(2005)06-1294-02 |
Semi-fragile watermarking algorithm based on operations over finite field |
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| YAN Xiao-dong,WANG Zhi-qin,GUAN Yu-jun.Semi-fragile watermarking algorithm based on operations over finite field[J].journal of Computer Applications,2005,25(6):1294-1295,1298. |
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| Authors: | YAN Xiao-dong WANG Zhi-qin GUAN Yu-jun |
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| Affiliation: | YAN Xiao-dong,WANG Zhi-qin,GUAN Yu-junDepartment of Information Engineering,Tangshan Institute,Tangshan Hebei 063000,China |
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| Abstract: | A new kind of semi-fragile watermarking algorithm based on operations over finite fields was presented by analyzing the fragile effects of the scrambling encryption for the watermarking algorithms. The experiments results show that this algorithm has a good robustness for the JPEG compression with the fixed coefficient, and a good fragileness for the illegal manipulation. |
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| Keywords: | digital watermark scrambling encryption finite field semi-fragile watermarking algorithms |
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