摘要
基于信息隐藏技术的图像隐蔽通信,需要解决隐藏信息不可检测和主动攻击条件下的通信可靠性两个问题。本文用广义信息熵来表示图像信息,给出了隐藏信息不可检测的条件。采用差错控制的ARQ技术解决主动攻击条件下的可靠通信问题,给出了ARQ技术所须解决的差错检测和检测编码,证明了给出的编码具有差错检测能力。本文所给出的方案适用于通信量较大的公共信道中进行图像隐蔽通信,在m位隐藏信息不全部出错的前提下,能保证可靠的隐蔽通信。
Two questions must be solved in Image Hidden Communication based on data hiding, which hidden data can＇ t be detected and is transmitted reliably on initiative attack. In this paper, information of image is expressed in terms of generalized information entropy, and constraint condition that the hidden data can＇t be detected is given. We solve the question that hidden data is transmitted reliably with ARQ technology in error control of communication. Detection of error and detection code for ARQ technology is proposed, and error detection ability of the code is proved. The scheme is suitable for Image Hidden Communication in public communication channel with high communication traffic, and make hidden communication reliable in the case of not all bits in m - bit hidden data are error.
出处
《微计算机应用》
2009年第9期8-13,共6页
Microcomputer Applications
关键词
图像隐蔽通信
信息隐藏
主动攻击
差错控制
ARQ技术
Image Hidden Communication, Data Hiding, Initiative Attack, Error Control, ARQ Technology
