自适应六边形窗口加权均值滤波.pdfVIP

Computer EngineeringandApplications计算机工程与应用 自适应六边形窗口加权均值滤波 吴朋波，王志巍，郭晓文，杨芳芳，张有会 WU Zhiwei，GUO Youhui Pengbo，WANG Xiaowen，YANG Fangfang，ZHANG 河北师范大学数学与信息科学学院，石家庄050024 SchoolofMathematicandInformation Normal Science，Hebei 050024，China University,Shijiazhuang WU window mean Pengbo，WANGZhiwei,GUOXiaowen，et a1．Adaptivehexagonalweighted and Engineering Applications，2012，48(36)：177-180． Abstract：The has effecttothe the weightedaverage good polluted filteringalgorithm filtering image by salt·-and·-pep·- thereisanumberoffactorsthatinfluencetheeffectofthis different noise，but per algorithm，forexamplechoosing windowhas differenceontheeffectoffilter．Inthis isakindof win— filtering greater paper,there adaptivehexagon dowwhose inahorizontaldirectionaremorethanvertical the isdifferentonthehorizon- direction，SO pixels impact talandverticaldirectioninthe resultsshowthatthe effectisbeRerthan experimental filtering filteringprocess．The windowtothe thathas correlationonthelevel vertical general image strongerpixel direction(ordirection)． windows；mean noise Keywords：hexagonwindow；adaptive filter；salt—and-pepper 摘要：加权均值滤波算法对于被椒盐噪声污染的图像有较好的滤波效果，但是影响这类算法滤波效果的因 素有很多，比如选用不同滤波窗12的滤波效果差别较大。提出一种自适应六边形窗口，该窗12在水平方向采 用的像素数多于垂直方向，在滤波过程中对水平方向和垂直方向的侧重有所不同。实验结果表明，算法对水 平(或垂直)方向像素关联度强的图像滤波效