基于几何测度的图像置乱度算法研究  

Research on algorithm of image scrambling degree based on geometric measurement

作　　者：陈家勇[1] 赵怀勋[1] 汪晶晶[2] 

机构地区：[1]武警工程学院通信工程系信息网络实验室,西安710086 [2]武警工程学院电子技术系网络与信息安全武警部队重点实验室,西安710086

出　　处：《计算机工程与应用》2011年第10期183-185,共3页Computer Engineering and Applications

摘　　要：分析研究了现有的几种图像置乱度衡量算法,从图像置乱前后相邻像素之间的距离偏移和方向偏移两个方面考虑,提出了基于几何测度的图像置乱度算法;最后通过对比分析,证明该算法具有更好的实用性、有效性与优越性。This paper analyzes several kinds of existing measurement algorithms for the image scrambling degree.Then it proposes an image scrambling degree algorithm based on geometric measurement according to two considerations：distance excursion and direction excursion between the adjacent pixels of the image before scrambling and after scrambling.Finally, through comparison and analysis,it can prove that the algorithm has better properties,such as practicability,validity and advantage etc.

关 键 词：几何测度 置乱度 图像置乱 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]