| 面向块截断编码图像的安全可逆可见水印算法 |
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| 引用本文： | 杨恒伏,全小凤,湛思思,周新宇,李香波,李倩文.面向块截断编码图像的安全可逆可见水印算法[J].电讯技术,2019,59(1):88-92. |
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| 作者姓名： | 杨恒伏 全小凤 湛思思 周新宇 李香波 李倩文 |
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| 作者单位： | 湖南第一师范学院信息科学与工程学院,长沙,410205;湖南第一师范学院数学与计算科学学院,长沙,410205 |
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| 基金项目： | 湖南省教学改革项目（2016-909）;湖南省社科基金一般项目（16YBA102）;湖南第一师范学院大学生研究性学习和创新性实验计划项目(YSXS1520) |
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| 摘 要： | 互联网的广泛普及与信息处理技术的迅速发展为网络环境数字图像资源的安全通信带来了挑战。为保障网络实时环境数字图像安全流通，提出了一种基于块截断编码的数字图像可逆可见水印方案。该方案通过调整块截断编码块两个量化级以嵌入可见水印，并将加密水印信息隐藏于编码域二元位平面中，水印嵌入过程中逻辑取反运算的使用确保了原图像可恢复性。实验结果表明了该可逆可见水印方案的有效性与安全性，可应用于网络环境数字图像安全分发，为普通用户提供含可见水印的图像资源，而仅授权用户可去除可见水印浏览高质量原图像。
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| 关 键 词： | 数字图像 安全分发 可逆可见水印 块截断编码 |
A secure reversible visible watermarking scheme for block truncation coded images |
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| YANG Hengfu,QUAN Xiaofeng,ZHAN Sisi,ZHOU Xinyu,LI Xiangbo and LI Qianwen.A secure reversible visible watermarking scheme for block truncation coded images[J].Telecommunication Engineering,2019,59(1):88-92. |
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| Authors: | YANG Hengfu QUAN Xiaofeng ZHAN Sisi ZHOU Xinyu LI Xiangbo and LI Qianwen |
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| Affiliation: | Department of Information Science and Engineering,Hunan First Normal University,Changsha 410205,China,Department of Mathematics and Computing Science,Hunan First Normal University,Changsha 410205,China,Department of Mathematics and Computing Science,Hunan First Normal University,Changsha 410205,China,Department of Mathematics and Computing Science,Hunan First Normal University,Changsha 410205,China,Department of Information Science and Engineering,Hunan First Normal University,Changsha 410205,China and Department of Information Science and Engineering,Hunan First Normal University,Changsha 410205,China |
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| Abstract: | The extensive popularization of the Internet and rapid development of information processing technology have brought about many severe challenges to the secure communication of digital image under network circumstances.In order to protect secure transmission of digital images in real-time network conditions,this paper proposes a secure digital image lossless visible watermarking scheme based on block truncation coding(BTC).This scheme embeds the visible watermark by modifying two quantization levels of BTC and encrypted visible watermark is losslessly hidden into the bit-plane.The use of logical not operation during watermark insertion ensures the reversibility of the visible watermark.Experiments results show the effectiveness and security of the proposed scheme.It provides ordinary users stego-images with visible watermark and only authorized users can obtain high visual quality images by removing the visible watermark. |
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