%0 Journal Article
%T Study of Digital Watermarking Based on Information Theory<br>基于信息论的数字水印研究
%A ZHANG Xiang-hua
%A WEI Peng-cheng
%A <br>张向华
%A 韦鹏程
%J 计算机科学
%D 2009
%I 
%X A method of studying watermarking system using the theory of communication was presented.An information theoretic analysis of the intensity and position embedding and the capacity of watermarking channel,as well as an information theoretic bottom bounds for extraction effectually of watermark was proposed through calculating the mutual information and conditional entropy of the correlated signals.The results have a good role in guiding the designing of watermarking system.
%K Information theory
%K Digital watermarking
%K Channel capacity
%K Mutual information<br>信息论
%K 数字水印
%K 信道容量
%K 交互信息
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=28D28F54B9AFDB4EDC3ED921ABC32640&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=38B194292C032A66&sid=FBA00558C57D9C11&eid=D537C66B6404FE57&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=7