基于颜色场结构和高斯金字塔的信息隐藏算法  

Information Hiding Algorithm Based on Color Field Structure and Gaussian Pyramid

作　　者：任帅[1] 慕德俊[2] 张弢[3] 

机构地区：[1]长安大学信息工程学院,陕西西安710064 [2]西北工业大学自动化学院,陕西西安710072 [3]长安大学电子与控制工程学院,陕西西安710064

出　　处：《计算机技术与发展》2013年第9期131-134,共4页Computer Technology and Development

基　　金：国家"863"高技术发展计划项目(2012AA112312);交通运输部项目(2012-364-208-600;2012-364-208-200;201231849A70);吉林省外国专家局项目(2012-7-102-2)

摘　　要：针对秘密通信中,以数字图像为载体的信息隐藏算法的鲁棒性、不可见性和抗检测性等性能不均衡的现状,利用颜色场结构和高斯金字塔理论提出了基于数字图像载体预处理的信息隐藏算法。基于该算法对数字图像载体进行能量层次和结构状态的划分,并采用置乱、优化等预处理手段对欲隐藏信息进行解析,使得欲隐藏信息与载体信息保持最大一致性。仿真实验结果表明,该算法遵循数字图像自身的能量和结构特性,显著改善了信息隐藏算法的鲁棒性和不可见性,并且提高了算法的抗检测性。Aiming at imbalance current situation about robustness,invisibility and anti-steganalysis of digital image information hiding in confidential communication, develop an information hiding algorithm based on digital image carder preprocessing using color field struc- ture and Gaussian pyramid. Based on the above scheme,divide digital image carrier into different energy layers and structure status. Then use preprocessing methods such as scrambling and optimization to analyze the embedded data, so maximize the consistence of the data bits＇ order between embedded data and carder data. The simulation experiment indicates that the proposed algorithm follows the energy and structure characteristics of digital images, and can greatly increase robustness and invisibility, and has certain ability against common ste^analvsis.

关 键 词：信息隐藏 载体预处理 颜色场结构 高斯金字塔 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]