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1、Finalprojectforthecourseof“ImageanalysisandPatternrecognition”钱平信号与信号处理s101904010ProjectdescriptionThroughthefigure1imageanalysis,wefirstneedtoadjustthebrightnesstoenhancethefruitandbackgroundofcontrast.Secondly,needtosegmentthedifferentfruitimages,generallyuseintheappropriatecolorspace(suc
2、hasHIS),fromacertaincolorchanneltosegmentthefruit,thismethodneedscolorspacetransformationandstatisticsarangeofvalues,thecalculationisrelativelycomplicated.Imageanalysistechnicalclassificationofthreebasiccategory.Low-leveltreatment:imageacquisitionandpretreatment,donotneedtointelligence.Inte
3、rmediatetreatment:imagesegmentation,representationanddescription,needintelligence.Theadvancedtreatment:imagerecognition,explanation,lackoftheory,inordertoreducethedifficulty,designmorespecial.Fig.11PrincipleFruitandbackgroundofedgerepresentsthefruitofcontourinformation,efficient,quickadvant
4、ageshasbeenwidelyused.Weneedtofigureouttheorangeindifferentfruits.Throughtheanalysis,andthenRGBcomponentshavetryoutcorrespondingRGBcomponentsofthethresholdvalue,ifdetectedimagecolorinthisthresholdisevenlyintothesamecolorwithin.Ifnotinthisthresholdisbesmearblackwithin.Fig.2Recognitionflowcha
5、rt4/42Proposedapproach2.1BrightnessadjustingDuetoobtaintheimagesintheexternalenvironmentandequipmentnotsure,causingimagebrightnessuneven,influencesubsequentedgedetection,therefore,itisnecessarytoadjustbrightnessimage.Here,takeautomaticbrightnessadjustingmethod,thismethodinthepicturethebigge
6、st5%pixelluminancetakenout,thenlinearamplifier,makeitsaveragebrightness150.Normally,thismethodcanrealizeunevenimagesofbrightnessgoodprocessingeffects.Infig.1afteradjustingforbrightnesseffectfig.3shows.Fig.3Brightnessadjusteddiagram2.2RGBanalysisRGBcolormode(alsotranslatedas"red,green,blue,"
7、lesswith)isakindofcolorindustrystandard,ispassedonthered(R),green(G),blue(B)threecolorchannelschangesandtheirmutualstacktogetallkindsofcolor,RGBnamelyrepresentsred,greenandbluethreechannelsofcolor,thisstandardnearlyincludeshumanvisualperceptionofallcolor
