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1、青岛大学毕业设计英文资料翻译imageedgeexaminationalgorithmAbstractDigitalimageprocessingtookarelativequiteyoungdiscipline,isfollowingthecomputertechnologyrapiddevelopment,daybydayobtainsthewidespreadapplication.Theedgetooktheimageonekindofbasiccharacteristic,inthepatternrecognition,theimagedivision,theimage
2、intensificationaswellastheimagecompressionandsooninthedomainhasamorewidespreadapplication.Imageedgedetectionmethodmanyandvaried,inwhichbasedonbrightnessalgorithm,isstudiesthetimetobemostlong,thetheorydevelopsthematurestmethod,itmainlyisthroughsomedifferenceoperator,calculatesitsgradientbasedo
3、nimagebrightnessthechange,thusexaminestheedge,mainlyhasRobert,Laplacian,Sobel,Canny,operatorsandsoonLOG。Firstasawholeintroduceddigitalimageprocessingandtheedgedetectionsurvey,hasenumeratedseveralkindofatpresentcommonlyusededgedetectiontechnologyandthealgorithm,andselectstwokindstouseVisualthe
4、Clanguageprogrammingrealization,throughwithdrawstheimageresulttotwoalgorithmsthecomparison,theresearchdiscussestheirgoodandbadpoints.ForewordInimageprocessing,asabasiccharacteristic,theedgeoftheimage,whichiswidelyusedintherecognition,segmentation,intensificationandcompressoftheimage,isoftenap
5、pliedtohigh-leveldomain.Therearemanykindsofwaystodetecttheedge.Anyway,therearetwomaintechniques:oneisclassicmethodbasedonthegraygradeofeverypixel;theotheroneisbasedonwaveletanditsmulti-scalecharacteristic.Thefirstmethod,whichisgotthelongestresearch,gettheedgeaccordingtothevarietyofthepixelgra
6、y.ThemaintechniquesareRobert,Laplace,Sobel,CannyandLOGalgorithm.Thesecondmethod,whichisbasedonwavelettransform,utilizestheLipschitzexponentcharacterizationofthenoiseandsingularsignalandthenachievethegoalofremovingnoiseanddistillingtherealedgelines.Inrecentyears,anewkindofdetectionmethod,which
7、basedonthephaseinformationofthepixel,isdeveloped.Weneedhypothesizenothingaboutimagesinadvance.Theedgeiseasytofindinfrequencydomain.It’sareliablemethod.Inchapterone,wegiveanoverviewoftheimageedge.Andinchaptertwo,someclassicdetectionalgorithmsa
