3、on product qualityandperformance.Toensure the qualityoftheproducts, wemustdetectthe partsand the machiningprocess ,efficiently,accuratelyandinrealtime.Automaticallydetectingthetiny partsbasedonthe imageprocessing,isthetendencyofthedetectionsoftinyparts’surfaceandthetinyandpartialqualityoftheprocess.
4、This paper firstintroduces the developmentof theimageprocessing,thestructureofdefect detectionsystemwhichisbased on digitalimageprocessing,aswellas domesticandinternational statusquo. Followingthatsome basicconceptsofdigitalimageprocessingareinterpreted,aswellas thebasicstepsofedgedetectioninthisto
5、pic.Intheimplementationmethodsofeachstep,comparetheadvantagesanddisadvantagesofRoberts,Sobel,Prewitt,Cannyandotheroperators.Togettheclearandtruecontour,IusetheHoughtransformmethod.Inaddition,inordertofurtherimprovetheclarityoftheimagesobtained,thecalibrationoftheCCDisdone.Finally the performanceofva
6、riouspartsoftheimageprocessingsystem are analyzedandsummarized. TrainingObjectives:usingVCandMATLAB softwareprogrammingskillfully,masteringtheknowledgeofimageprocessingandOpenCVandcultivatingtheanalyzingand problem-solvingskillsatthesametime, toprovidesolidfoundation for futurescientificresearch.Key