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基于奇异值信息熵不变特性的抗打印拍摄信息隐藏方法

Information hiding method against print-cam based on the invariance of information entropy under SVD

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摘要

针对不同环境光亮度下手机拍摄印品后提取秘密信息困难的问题, 提出一种基于奇异值信息熵不变特性的抗打印拍摄信息隐藏方法。将彩色载体图像转换到YCbCr颜色空间,选择Contourlet域低频系数进行奇异值分解, 利用奇异值信息熵的不变特性, 将全息加密的彩色QR码嵌入到彩色载体图像的奇异值中。实验结果表明算法不可见性好, 不仅对打印拍摄具有很好的鲁棒性, 而且对压缩滤波攻击及几何攻击后再次打印拍摄二次攻击仍然具有很好的抵抗性。以彩色QR码作为防伪信息, 可以携带丰富的版权信息, 使用手机即可识别, 方便快捷, 在商品包装防伪方面有着很好的实际应用价值。

Abstract

Aiming at solving the difficulty of extracting secret information from the printed image captured using the mobile phone at different levels of embient luminance, this paper proposes an efficient information hiding algorithm against print-cam based on the invariance of information entropy under SVD. Convert the color carrier image from RGB color space to YCbCr color space ,and then apply SVD(Singular Value Decomposition) to low-frequency sub-bands in contourlet domain. Finally, Embed the holographic encrypted color QR code into the singular value of the color carrier image based on the invariance of image information entropy under SVD. Experimental results show that the algorithm has good invisibility, and not just has good resistance to print-cam attack ,but also resists print-cam attack after compression attacks ,filtering attacks and geometric attacks. The color QR code which can carry abundant copyright information is used as anti-counterfeiting information, and can be recognized by mobile phone quickly. The algorithm has good practical application value in anti-counterfeiting of commodity packaging.

Newport宣传-MKS新实验室计划
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中图分类号:TP391.41

所属栏目:光显示

基金项目:“基于柔印产品特性的智能化印前图像处理”招标课题(ZBKT201809)

收稿日期:2018-02-09

修改稿日期:2019-02-13

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王晓红:上海理工大学 出版印刷与艺术设计学院,  上海  200093
王春霞:上海理工大学 出版印刷与艺术设计学院,  上海  200093
孙业强:上海理工大学 出版印刷与艺术设计学院,  上海  200093
麻祥才:上海出版印刷高等专科学校,  上海  200093
肖颖:上海出版印刷高等专科学校,  上海  200093

联系人作者:王晓红(wang_keyan@163.com)

备注:王晓红(1971-), 女, 教授, 博士, 从事颜色科学与数字图像处理研究。

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引用该论文

WANG Xiaohong,WANG Chunxia,SUN Yeqiang,MA Xiangcai,XIAO Ying. Information hiding method against print-cam based on the invariance of information entropy under SVD[J]. Optical Technique, 2019, 45(4): 469-474

王晓红,王春霞,孙业强,麻祥才,肖颖. 基于奇异值信息熵不变特性的抗打印拍摄信息隐藏方法[J]. 光学技术, 2019, 45(4): 469-474

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