基于戈莱码的真彩图像空域信息隐藏方法研究  

Research on steganography method in pixel domain of color images based on Golay code

作　　者：刘翠卿[1] 平西建[1] 张涛[1] 王云鹤[2] 

机构地区：[1]信息工程大学信息工程学院,郑州450002 [2]中国人民公安大学理科基础部,北京100038

出　　处：《计算机工程与应用》2007年第24期37-40,共4页Computer Engineering and Applications

基　　金：国家自然科学基金(the National Natural Science Foundation of China under Grant No.60473022)

摘　　要：(23,12)戈莱码真彩色图像空间域信息隐藏方法是一种以真彩色图像为载体,利用戈莱码编码冗余携带秘密信息的新的信息隐藏方法。对秘密信息进行映射编码形成错误图样,以真彩色图像块高位加扰信息为戈莱码的编码数据,将编码产生的校验数据有选择地嵌入真彩色图像块的低位数据中,然后根据错误图样修改个别处于低位的校验位,完成秘密信息的隐写。理论分析和实验结果表明,方法具有良好的隐蔽通信性能。A new steganography method in pixel domain of color images by using the encoding redundancy of Golay code is proposed.A research on Golay code and its syndrome of the codeword shows that the syndrome of a codeword depends only on the error, not on the codeword transmitted.A mapping code between secret information and codeword error map is built.According to the error map,we can embed secret information by modifying the encoding check data of Golay code.In this method the encoding data of Golay code is one of the higher bit-planes block in pixel domain of color image and the encoding check data with secret information is embedded into the LSB of the color image.Theoretical analysis and experimental results show that this method has better security.

关 键 词：信息隐藏隐写分析戈莱码空间域 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]