基于二维Baker映射的隐写算法设计  

The Steganography Algorithm Design based on Dimensional Baker Mapping

作　　者：葛祥友[1] 

机构地区：[1]柳州职业技术学院电子信息工程系,广西柳州545006

出　　处：《广西民族大学学报（自然科学版）》2014年第2期66-69,共4页Journal of Guangxi Minzu University ：Natural Science Edition

基　　金：广西教育厅科研课题(2013LX223;2013YB364)

摘　　要：为了提高隐写算法的性能,通过对混沌映射原理进行深入的研究和分析,提出了一种基于二维Baker映射的隐写算法设计方案.对二维Baker映射的主要特点和映射变换过程进行了系统的研究,给出了基于二维Baker映射隐写算法的设计原理和实现过程,分别描述了信息隐写和提取的流程.最后进行了仿真与测试,选取标准图片库与三种传统的隐写算法进行了对比测试,结果表明对隐写容量和抗检测能力都达到较高的性能指标.In order to improve the performance of steganographic algorithm, this paper further studied the chaotic mapping principles and put forward a steganography algorithm design scheme based on dimen- sional Baker mapping. It first analyzed the main characteristics and transformation process of dimensional Baker mapping. Then, it presented the design principle and implementation process of dimensional Baker mapping, respectively described the information steganography and extraction process. The last stimulation test selected a standard image library and compared with three traditional steganography algorithms, the re- sults indicated that the steganographic capacity and anti--detection achieved a higher performance index.

关 键 词：隐写 二维Baker映射 混沌映射 提取流程 隐写容量 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]