一种基于超混沌系统的立体图像零水印算法

周武杰; 郁梅; 禹思敏; 蒋刚毅; 葛丁飞

doi:10.7498/aps.61.080701

摘要

为了在不改变立体图像质量的前提下对立体图像实施版权保护,提出了一种基于超混沌离散系统的立体图像零水印算法. 该算法利用立体图像左右视点小波变换域低频子带视差的稳定性以及离散余弦变换直流系数稳定的特点构造了一种视差零水印. 在水印构造过程中,利用了超混沌离散系统的初始值敏感性、参数密钥空间大和动力学行为复杂等特性映射视差零水印的位置信息,从而增强了水印算法的安全性.此外,还分析了水印安全性与水印容量之间的关系. 实验结果表明,该立体图像视差零水印算法对加噪、滤波、压缩、剪切、图像放大和缩小等各种对称和非对称攻击表现出了较强的鲁棒性.

关键词:

Abstract

In order to protect the copyright of stereoscopic images in the condition of the image quality, a zero-watermarking stereoscopic image algorithm is presented based on hyperchaotic system. In the proposed algorithm, disparity zero-watermark is constructed according to the stability of disparity between low frequency bands of wavelet decomposition of the left and the right views and direct coefficients of discrete cosine transform; in the process of zero-watermark construction, the zero-watermark position mapping according to the features of the sensitivity of hyperchaotic discrete system initial value, ampleness of parameter key space and complexity of dynamic behavior, enhances the security of algorithm. The relationship between security and watermark capacity is also analyzed. Experimental results show that the proposed algorithm is strong robust to noise, filtering, compression, and the shearing of asymmetrical and symmetrical attacks.

Keywords:

作者及机构信息

1.
浙江科技学院信息与电子工程学院, 杭州 310023;

2.
宁波大学信息科学与工程学院, 宁波 315211;

3.
广东工业大学自动化学院, 广州 510006

基金项目: 国家自然科学基金(批准号: 60872094, 60832003, 61071120)、高等学校博士学科点专项科研基金 (批准号: 200816460003)、浙江省自然科学基金(批准号: Y1100219)、浙江省研究生创新科研基金 (批准号: YK2009044)和宁波大学优秀学位论文培育基金(批准号: PY20110002)资助的课题.

Authors and contacts

1.
School of Information and Electronic Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China;

2.
Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;

3.
College of Automation, Guangdong University of Technology, Guangzhou 510006, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 60872094, 60832003, 61071120), the Specialized Research Foundation for the Doctoral Program of Higher Education of China (Grant No. 200816460003), the Natural Science Foundation of Zhejiang Province, China (Grant No. Y1100219), the Innovation and Scientific Research Foundation for the Graduate Students of Zhejiang Province, China (Grant No. YK2009044), and the Outstanding Dissertation Cultivation Foundation of Ningbo University, China (Grant No. PY20110002).

参考文献

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施引文献

[1]	Fan Y C, Chiou J C, Jiang Y H 2011 IEEE Trans. Magn. 47 679
[2]	Shen L Q, Liu Z, Yan T, Zhang Z Y, An P 2011 IEEE Trans. Circ. Syst. Video Techn. 20 925
[3]	Shao F, Jiang G Y, Wang X, Yu M, Chen K 2010 IEEE Trans. Consume Electron. 56 2460
[4]	Fan Y C, Kung Y T, Lin B L 2011 IEEE Trans. Magn. 47 683
[5]	Zhu Z J, Wang Y E, Jiang G Y, Liang F 2007 J. Image Graph. 12 68 (in Chinese) [朱仲杰, 王玉儿, 蒋刚毅, 梁丰 2007 中国图像图形学报 12 68]
[6]	Lin Y H, Wu J L 2011 IEEE Trans. Broadcas. 57 602
[7]	Alattar A M, Digimarc C, Tualatin O 2004 IEEE Trans. Image Process. 13 1147
[8]	Zhang X P, Wang S Z, Qian Z X, Feng G R 2011 IEEE Trans. Image Process. 20 485
[9]	Zeng G R, Qiu Z D 2010 Acta Phys. Sin. 59 5870 (in Chinese) [曾高荣, 裘正定 2010 59 5870]
[10]	Wen Q, Sun T F, Wang S X 2003 Acta Electron. Sin. 31 214 (in Chinese) [温泉, 孙锬锋, 王树勋 2003 电子学报 31 214]
[11]	Wu X Y, Guan Z H 2007 Phys. Lett. A 365 403
[12]	Mooney A, Keating J G 2009 Chaos Solitons Fract. 42 560
[13]	Song W, Hou J J, Li Z H, Huang L 2009 Acta Phys. Sin. 58 4449 (in Chinese) [宋伟, 侯建军, 李赵红, 黄亮 2009 58 4449]
[14]	Hu Y F, Zhu S A 2008 J. Zhejiang Univ. (Eng. Sci.) 42 593 (in Chinese) [胡裕峰, 朱善安 2008 浙江大学学报(工学版) 42 593]
[15]	He H J, Zhang J S 2007 Acta Phys. Sin. 56 3092 (in Chinese) [和红杰, 张家树 2007 56 3092]
[16]	Zou L J, Wang B, Feng J C 2008 Acta Phys. Sin. 57 2750 (in Chinese) [邹露娟, 汪波, 冯久超 2008 57 2750]
[17]	Xu T, Zhang Y N, Sun J Q, Zheng J B, Ling Z G 2009 J. Image Graph. 14 1819 (in Chinese) [徐涛, 张艳宁, 孙瑾秋, 郑江滨, 林增刚 2009 中国图像图形学报 14 1819]
[18]	Jin J X, Qiu S S 2010 Acta Phys. Sin. 59 792 (in Chinese) [晋建秀, 邱水生 2010 59 792]
[19]	Zhang C X, Yu S M 2010 Acta Phys. Sin. 59 3017 (in Chinese) [张朝霞, 禹思敏 2010 59 3017]
[20]	Sun K H, He S B, Sheng L Y 2011 Acta Phys. Sin. 60 020505 (in Chinese) [孙克辉, 贺少波, 盛利元 2011 60 020505]

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