2、应阈值的效果。最后,用MATLAB软件工具实现该算法。实验结果表明,改进后的算法较传统的Canny算法取得更好的边缘检测效果。关键词:图像处理;边缘检测;Canny算子;滤波;自适应阈值42ABSTRACTEdgedetection is mainlyaimedatmeasurement,detectionandlocationofthechangeofimageintensity,itsessenceisto extract thecharacteristicofthediscontinuouspartsofimages
4、cance andtheoreticalsignificance,anditoccupies averyimportantrole inengineeringapplications.Thispapermakesan in-depthstudy on the theory andalgorithms of edgedetection.Basedonspecificanalysisof various types of traditional edge detectionalgorithm,thispaper focuses
5、on the Cannyalgorithm.Inthispaper,weuse theSigmasmoothingfiltertoimprovethefilteringofCanny, andthe improved MECtorefinethedual-threshold in theCannyalgorithm tomakethethreshadaptive. Finally, usingMATLAB softwaretools to implementthealgorithm. The experimentalres
6、ultsshowthattheimprovedalgorithm gainsbetter edge detectionresults than the traditionalCannyalgorithm.Keywords:ImageSegmentation;EdgeDetection;Canny;Filtering;AdaptiveThreshold42目录引言1第一章图像分割与边缘检测21.1图像分割简介21.2图像分割定义21.3图像分割基本原理3第二章基于边界的分割——边缘检测62.1边缘的类型62.2边缘的类型62