| 用于图像篡改检测与恢复的安全双水印算法 |
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| 引用本文： | 张磊,邵晓艳.用于图像篡改检测与恢复的安全双水印算法[J].河南师范大学学报(自然科学版),2009,37(5). |
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| 作者姓名： | 张磊 邵晓艳 |
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| 作者单位： | 1. 河南师范大学,计算机与信息技术学院,河南,新乡453007
2. 郑州航空工业管理学院,计算机科学与应用系,郑州,450000 |
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| 基金项目： | 河南省教育厅自然科学基金 |
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| 摘 要： | 为提高可恢复双水印算法抵抗伪造攻击的能力,提出一种用于图像篡改检测和恢复的安全双水印算法.该算法首先基于密钥生成随机序列,利用该随机序列将双水印信息加密之后再嵌入图像块的低位,同时,该随机序列结合图像块内容和嵌入在低位的恢复水印生成认证数据,以提高可恢复双水印算法抵抗伪造攻击的能力.实验结果表明该算法有效提高了自恢复双水印算法抵抗伪造攻击的能力.
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| 关 键 词： | 图像认证 双水印 伪造攻击 |
Secure Dual Watermark Scheme for Image Tamper Detection and Recovery |
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| ZHANG Lei,SHAO Xiao-yan.Secure Dual Watermark Scheme for Image Tamper Detection and Recovery[J].Journal of Henan Normal University(Natural Science),2009,37(5). |
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| Authors: | ZHANG Lei SHAO Xiao-yan |
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| Abstract: | To improve the security against the counterfeiting attack,this paper proposes a secure dual watermark scheme for image tamper detection and recovery.In the proposed scheme,a pseudo-random sequence is generated based on the secret key.This pseudo-random sequence is first used to encrypt the recovery watermark embedded in the less significant bits of each block,and then it is also used to encrypt the authentication data of each block,which is generated by its content and the watermark embedded in it.Experimental results show that the proposed dual watermark scheme has a capability of resisting the counterfeiting attack. |
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| Keywords: | image authentication dual watermark counterfeiting attack |
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