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直方图2Bin多进制图像数字水印算法的研究 被引量:11

A Histogram-Based 2Bin M-ary Image Digital Watermarking Algorithm
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摘要 具有低失真、强鲁棒等特点的直方图数字水印算法,一直是信息隐藏领域研究的热点.本文在分析现有直方图数字水印算法的基础上,提出并设计了基于直方图修改的2Bin多进制图像水印算法.以三进制为例,设计实现了2Bin三进制图像数字水印算法.在设计的算法中,根据嵌入的水印信息容量和载体图像的大小调整算法嵌入阈值,在维持直方图相邻2Bin高低形状不变的情况下,确定修改像素数目以及分块策略,实现水印信息的嵌入和提取操作.实验结果表明,该方法能够智能均衡载体图像质量和水印容量,同现有算法相比,大大提高了水印嵌入容量和水印嵌入后的图像质量,且能抵抗裁剪、旋转等传统的几何攻击和信号处理攻击. The histogram shape-based digital watermarking,which has the characteristics of low distortion,strong robustness,and etc,has become a hot topic in information hiding fields.Upon the basic properties of the existing histogram shape-based digital watermarking,a modified histogram shape-based 2Bin M-ary digital watermarking algorithm is designed firstly,and then,a concret ternary digital watermarking as an example of the M-ary system is further implemented.In the designed algorithm,the embedding threshold is adjusted according to the embedded watermark information capacity and the size of the carrier image.Under the condition of maintaining the high or low shape of the adjacent 2Bin histogram unchanged,the modified pixel number and the block strategy are determined to realize the embedding and extraction of watermark information.Experimental results show that this method is able to balance the relationship between image quality and watermark capacity intelligently,and that it greatly improves embedding capacity and image quality compared to these existing algorithms,meanwhile equips with the ability to resist the traditional geometric attacks and common image processing operations.
作者 岳桢 李子臣 杨义先 游福成 刘福平 YUE Zhen;LI Zi-chen;YANG Yi-xian;YOU Fu-cheng;LIU Fu-ping(Information Security Center,Beijing University of Posts and Telecommunications,Beijing 100876,China;School of Information Engineering,Beijing Institute of Graphic Communication,Beijing 102600,China)
出处 《电子学报》 EI CAS CSCD 北大核心 2020年第3期531-537,共7页 Acta Electronica Sinica
基金 国家自然科学基金(No.61370188) 北京市教委科研计划一般项目(No.KM201610015002,No.KM201510015009) 北京市教委科研计划重点项目(No.KZ201510015015,No.KZ201710015010) 科技创新服务能力建设-科研水平提高定额项目(No.PXM2017_014223_000063)。
关键词 数字水印 直方图修改 相邻2Bin 水印容量 watermarking histogram modification adjacent 2Bin large capacity
作者简介 岳桢,男,1988年出生,河南新乡人.现为北京邮电大学网络空间安全学院博士研究生,主要研究方向为信息安全、信息隐藏、数字水印、图像处理等.E-mail:yue_zhen@foxmail.com;通信作者:李子臣,男,1965年出生,河南焦作人.北京印刷学院信息工程学院教授,博士生导师,主要研究方向为信息安全、数字水印、数字签名、密码学等.E-mail:lizc2020@163.com;杨义先,男,1961年出生,四川盐亭人.北京邮电大学教授,博士生导师,主要研究方向为密码学、计算机网络与信息安全等.E-mail:yxyang@bupt.edu.cn;游福成,男,1964年出生,江西宜春人.北京印刷学院信息工程学院教授,硕士生导师,主要研究方向为图像处理、机器视觉与模式识别等.E-mail:youfucheng@bigc.edu.cn;刘福平,男,1960出生,山东莒县人.现为北京印刷学院信息工程学院教授,硕士生导师,主要研究方向为3D全息印刷、光学防伪等.E-mail:liufuping@bigc.edu.cn。
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