基于Lorenz的彩色图像隐藏算法研究  

Color Image Hiding Algorithms Based on Lorenz

作　　者：徐贵森[1] 于晓洋[1] 张健[2] 董秋玲[1] 

机构地区：[1]哈尔滨理工大学测控技术与通信工程学院,黑龙江哈尔滨150040 [2]东北林业大学信息与计算机工程学院,黑龙江哈尔滨150040

出　　处：《中北大学学报（自然科学版）》2010年第1期29-33,共5页Journal of North University of China(Natural Science Edition)

摘　　要：在空域图像隐藏算法中,盲提取方法一直被认为是达到最佳隐藏效果的重要环节.鉴于此,提出了一种基于Lorenz的彩色图像的信息隐藏算法.采用一种将混沌和信息高位隐藏相结合的盲提取算法,该算法是将秘密信息按某一混沌序列存放在载体图像的高位,提取时无需原始图像即可实现信息的提取.实验结果表明:提取出的秘密信息完整清晰,该算法具有隐藏容量大(60%),隐藏速度快(0.425 s),抗非法提取,不可见性好等特点.In the spatial domain image information hiding algorithm, the blind extraction method is regarded as an important step to reach perfect hiding effect. Here a Lorenz-based information hiding algorithm for color images is proposed. The algorithm adopts a blind extraction method combining chaos and information high bit hiding. According to the chaos sequence, secret information is bided in the carried image high bit. The extraction process can be realized without original image. Experimental results indicate that the secret information extracted is integrity and clarity. The algorithm has advantages of large hiding capability （60%）, fast hiding speed （0. 425 s）, illegal extraction resistance and good invisibility.

关 键 词：信息隐藏 空域算法 彩色图像 LORENZ方程 

分 类 号：TP309.3[自动化与计算机技术—计算机系统结构]