| 一种基于模运算的数字水印隐藏算法 |
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| 引用本文： | 宋琪,朱光喜,容太平,罗航建.一种基于模运算的数字水印隐藏算法[J].电子学报,2002,30(6):890-892. |
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| 作者姓名： | 宋琪 朱光喜 容太平 罗航建 |
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| 作者单位： | 1. 华中科技大学电信系,湖北武汉 430074;2. 武汉长通公司,湖北武汉 430070 |
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| 基金项目： | 国家教育部科技重点项目 (No .2 0 0 1 75) |
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| 摘 要： | 数字水印技术是进行数字产品版权保护的一种手段.本文提出了一种基于模运算的数字水印隐藏方法,该方法具有以下性能:①水印的隐藏效果较好;②在水印的嵌入和提取过程中需个人的密钥,因此不知该密钥的用户无法正确恢复水印;③在计算嵌入水印的位置时,采用了具有不可逆性质的方法,因而非法用户无法获得水印的嵌入位置;④水印的提取无需原始图像;⑤可以抵抗LSB进攻、BIT-COMPLEMENT4]进攻和剪切进攻.
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| 关 键 词： | 版权保护 数字水印 模运算 数据隐藏 |
| 文章编号： | 0372-2112(2002)06-0890-03 |
A Kind of Digital Watermarking Algorithm Based on Modulo |
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| SONG Qi ,ZHU Guang-xi ,RONG Tai-ping ,LUO Hang-jian.A Kind of Digital Watermarking Algorithm Based on Modulo[J].Acta Electronica Sinica,2002,30(6):890-892. |
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| Authors: | SONG Qi ZHU Guang-xi RONG Tai-ping LUO Hang-jian |
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| Affiliation: | 1. Dept.of Electronics & Information,Huazhong University of Sci & Tech,Wuhan,Hubei 430074,China;2. Wuhan Changjiang Communications Industry Group Limited-Liability Co.,Wuhan,Hubei 430070,China |
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| Abstract: | Digital watermarking technology is a kind of method to protect digital products.This paper proposes a new watermarking algorithm based on integer modulo.The features of presented method to embed the watermark are:①the difference between the watermarked and the original image is perceptually invisible;②using a secret key in the procession of embedding and retrieving the watermark;③the position for embedding is random and calculation procession for the position is irreversible;④retrieval of the embedded watermark does not need the original image;⑤the watermark is robust against LSB,BIT-COMPLEMENT4] and cut attack. |
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| Keywords: | copyright protection digital watermarking modulo data hiding |
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