%0 Journal Article
%T Pixel-level image modification authentication algorithm<br>一种像素级的图像篡改认证算法
%A XIE Jian-quan
%A YANG Chun-hua
%A <br>谢建全
%A 阳春华
%J 计算机应用
%D 2007
%I 
%X A fragile watermarking algorithm used to authenticate the pixel-level modification to the image content was proposed, which can distinguish pixel points modified in image and tolerate transmission errors of individual authentication information bit in the process of image transmission. In this algorithm, authentication information was produced by extending more and more pixel points toward both left-right and up-down, which ensured the accurate location of individual juggled pixels resulting from some algorithms based on image uncertainty by combining surrounding pixels to determine the embedded watermarking bits. Authentication information was embedded after encryption to avoid most problems of security bugs caused by most pixel-based authentication algorithms.
%K fragile watermarking
%K image authentication
%K modification detection<br>脆弱水印
%K 图像认证
%K 篡改检测
%K 像素级
%K 基于图像
%K 认证算法
%K algorithm
%K authentication
%K modification
%K 安全漏洞
%K 加密
%K 有效解决
%K 问题
%K 准确定位
%K 不确定性
%K 水印算法
%K 结合
%K 信息位
%K 扩展
%K 传输错误
%K 传输过程
%K 像素点
%K 识别
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=14E16CBD2743051294D22A05C2327B53&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=B31275AF3241DB2D&sid=530D9656D932F420&eid=298DD318DE734E4F&journal_id=1001-9081&journal_name=计算机应用&referenced_num=3&reference_num=7