形態(tài)學處理MATLAB函數(shù)簡介

圖像形態(tài)學處理函數(shù)簡介1結構元素創(chuàng)建函數(shù)strel

CreatemorphologicalstructuringelementSyntaxSE=strel(shape,parameters)DescriptionSE=strel(shape,parameters)createsastructuringelement,SE,ofthetypespecifiedbyshape.Thistablelistsallthesupportedshapes.Dependingonshape,strelcantakeadditionalparameters.Seethesyntaxdescriptionsthatfollowfordetailsaboutcreatingeachtypeofstructuringelement1結構元素創(chuàng)建函數(shù)1結構元素創(chuàng)建函數(shù)SE=strel('arbitrary',NHOOD)createsaflatstructuringelementwhereNHOODspecifiestheneighborhood.floor((size(NHOOD)+1)/2)1結構元素創(chuàng)建函數(shù)SE=strel('diamond',R)createsaflat,diamond-shapedstructuringelement,whereRspecifiesthedistancefromthestructuringelementorigintothepointsofthediamond.

1結構元素創(chuàng)建函數(shù)SE=strel('disk',R,N)createsaflat,disk-shapedstructuringelement,whereRspecifiestheradius1結構元素創(chuàng)建函數(shù)SE=strel('line',LEN,DEG)createsaflat,linearstructuringelement,whereLENspecifiesthelength,andDEGspecifiestheangle(indegrees)oftheline1結構元素創(chuàng)建函數(shù)SE=strel('pair',OFFSET)createsaflatstructuringelementcontainingtwomembers.Onememberislocatedattheorigin.Thesecondmember'slocationisspecifiedbythevectorOFFSET.2圖像腐蝕函數(shù)imerodeErodeimageSyntaxIM2=imerode(IM,SE)IM2=imerode(IM,NHOOD)IM2=imerode(IM,SE,PACKOPT,M)IM2=imerode(...,PADOPT)2圖像腐蝕函數(shù)originalBW=imread('circles.png');se=strel('disk',11);erodedBW=imerode(originalBW,se);imview(originalBW)imview(erodedBW)3圖像膨脹函數(shù)imdilateDilateimageSyntaxIM2=imdilate(IM,SE)IM2=imdilate(IM,NHOOD)IM2=imdilate(IM,SE,PACKOPT)IM2=imdilate(...,PADOPT)3圖像膨脹函數(shù)I=imread('cameraman.tif');se=strel('ball',5,5);I2=imdilate(I,se);imshow(I),title('Original')figure,imshow(I2),title('Dilated')4圖像開運算函數(shù)imopenOpenanimageSyntaxIM2=imopen(IM,SE)IM2=imopen(IM,NHOOD)5圖像閉運算函數(shù)imcloseCloseanimageSyntaxIM2=imclose(IM,SE)IM2=imclose(IM,NHOOD)6邊界消除函數(shù)imclearborder

SuppresslightstructuresconnectedtoimageborderSyntaxIM2=imclearborder(IM)IM2=imclearborder(IM,CONN)Descriptionsuppressesstructuresthatarelighterthantheirsurroundingsandthatareconnectedtotheimageborder.7圖像填充函數(shù)imfill

FillimageregionsSyntaxBW2=imfill(BW,locations)BW2=imfill(BW,'holes')I2=imfill(I)BW2=imfill(BW)[BW2locations]=imfill(BW)BW2=imfill(BW,locations,CONN)BW2=imfill(BW,CONN,'holes')I2=imfill(I,CONN)7圖像填充函數(shù)Fillintheholesofabinaryimage.BW4=im2bw(imread('coins.png'));BW5=imfill(BW4,'holes');imview(BW4),imview(BW5)7圖像填充函數(shù)Fillintheholesofanintensityimage.I=imread('tire.tif');I2=imfill(I,'holes');imview(I),imview(I2)8舉例：用圖像分割檢測細胞Step1:ReadImageStep2:DetectEntireCellStep3:FillGapsStep4:DilatetheImageStep5:FillInteriorGapsStep6:RemoveConnectedObjectsonBorderStep7:SmooththeObject8舉例：用圖像分割檢測細胞

步驟1：讀入圖像I=imread('cell.tif');figure,imshow(I)title('originalimage')8舉例：用圖像分割檢測細胞步驟2：邊緣檢測BWs=edge(I,'sobel',(graythresh(I)*.1));figureimshow(BWs)

title('binarygradientmask')8舉例：用圖像分割檢測細胞步驟3：創(chuàng)建結構元素se90=strel('line',3,90);se0=strel('line',3,0);步驟4；膨脹圖像BWsdil=imdilate(BWs,[se90se0]);figure,imshow(BWsdil)title('dilatedgradientmask')8舉例：用圖像分割檢測細胞步驟5:填充內部空洞BWdfill=imfill(BWsdil,'holes');figure,imshow(BWdfill);title('binaryimagewithfilledholes');8舉例：用圖像分割檢測細胞步驟6：消除與邊界相連的目標BWnobord=imclearborder(BWdfill,4);figure,imshow(BWnobord),title('