%0 Journal Article
%T Secure Image Steganography Based on Step-varying Quantization<br>基于变步长量化的安全图像隐写
%A HE Jun-hui
%A TANG Shao-hua
%A XING Yi-bo
%A <br>何军辉
%A 唐韶华
%A 邢宜博
%J 计算机科学
%D 2009
%I 
%X Image steganography transfers message secretly by embedding the message into a cover image to implement covert communication.We presented an image steganographic algorithm called VSQS.A secret key dependent Gaussian sequence was generated and then rounded,which is used for the step-varying quantization of the pseudo-random permuted image pixels.Depending on the relationship between the quantized pixels and the secret message,the image pixels were modified to embed the message.Furthermore,an extension of thi...
%K Steganography
%K Gaussian sequence
%K Quantization
%K Steganalysis<br>隐写术
%K 高斯序列
%K 量化
%K 隐写分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=9572C659D139D570F2C571F419AC80D9&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=DF92D298D3FF1E6E&sid=014B591DF029732F&eid=6AC2A205FBB0EF23&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=9