基于质心的数字图像置乱度衡量准则  

A Novel Scrambling Degree Rule of Digital Image Based on Center of Mass

作　　者：冯新岗[1] 周诠[1] 

机构地区：[1]西安空间无线电技术研究所国家级重点实验室,西安710000

出　　处：《电子与信息学报》2008年第11期2684-2687,共4页Journal of Electronics & Information Technology

基　　金：国家重点实验室基金项目(9140C5303020601)资助课题

摘　　要：从数字图像是密度呈任意分布物体的新视角出发,提出了一种新颖的数字图像置乱程度衡量准则,该准则依据质心与形心间的距离来衡量置乱程度。与已有的置乱度准则相比,其突出的优点是仅用置乱后图像本身的信息而不用其它信息来衡量置乱程度。仿真结果说明了该准则的优越性。Based on a new viewpoint that digital image is considered as mass with non-uniform densities, a novel scrambling degree rule is presented that can be used to measure the scrambling degree by the distance between the center of mass and the center of figure. Compared with other rules, this rule has the distinguished advantage that it can measure the scrambling degree of any scrambled image using only the information of image. Experimental results show that its performance is superior to other rules.

关 键 词：数字图像 置乱程度 质心 形心 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]