java圖像分割方法集合

importjava?awt?*;importjavax?swing??:classImageTestextendsJFrame{publicImageTest(){setSize(300,300)；setVisible(true)；}publicImage[]splitImage(Stringfile,introws,intcols)System?out?printlnC^Test")；Imaget=newImageicon(file)?getImage():Imagedresult=newImage[rows*cols]:intw=t.getWidth(this)/cols；inth=t.getHeight(this)/rows；try{for(inti=0；i<result.1ength；i++){result[i]=this?createImage(w.h)；Graphicsg=result[i]?getGraphics():g.translate((-i%cols)*w.(-i/cols)*h)；g.drawlmage(t,0.0.this)；System?out?println(wTestH)；}}catch(Exceptione){}returnresult；}}classTestextendsJFrame{publicTest(){setSize(300,300)；setVisible(true)；}publicvoidpaint(Graphicsg){ImageTesttt=newImageTest():Imagedimage=tt?splitlmage(u1?gif".5.5)；g.drawlmage(image[01,0.0.this)；}publicstaticvoidmain(String[]args){newTest()；}}將一個大圖像分割成幾個小圖像的代碼〃分割圖像的方法。importjavax.swing?*； importjava?awt?*；importjava?awt?image?*；importjava.net.URL； importjava?io.File；importjava.util.Hashtable；publicclassChenWin504extendsJApplet{Imageim；MediaTrackerme；Imageimag[]:publicstaticHashtablecache；publicvoidinit(){URLur=ChenWin504.class?getResource(uimages/ima)；imag=newImage[10]:System.out?println(ur)；im-getToolkit()?getImage(nimages/ima/jumptojavastrip?png");me=newMediaTracker(this):me.addlmage(im?0)；try{me.waitForlD(O)；}catch(Exceptione){}DemoImagesO；for(inti=0；i<10；i++){imag[i]=(Image)cache?get(wjumptojavastrip-rT+i+，'?png")；if(imag[i]==nul1)System?out?println(Hnul1:publicvoidpaint(Graphicsg){intx=5；inty=100；g.drawlmage(im,5,0,null)；for(inti二0；i<10；i++){g.drawlmage(imag[i],xfy,null)；x+=100；if(x>300){x二5；y+=100;}}publicvoidDemoImagesO{URLurl=ChenWinSO4.class?getResource("iniages/ini3")；Filedir=newFile(ur1.getFileO):if(dir!=null&&dir.isDirectory()){Stringlist[]=dir.list():System?out?println(list?length)；cache=newHashtable(1ist.1ength):for(inti=0；i<list,length；i++){cache.put(1ist[i]tcreateImage(1ist[i],this)):}}if(cache?containsKey(wjumptojavastrip?png")){Imageimg=(Image)cache?get("jumptojaYsstrip?png")；for(inti二0.x二0；i<10；i++.x+二80){Strings=Hjumptojavastrip-'*+String.valueOf(i)+png"；cache.put(s,getCroppedlmage(img,x,0,80,80,this)):}}}publicstaticImagecreatelmage(StringfileName,Componentcmp){URLurl=ChenWin504?class?getResource("images/inia/"+fi1eName):Imageimg=cmp?getToolkit()?createlmage(url):trackimage(img,cmp)；returnimg；}〃分割圖像的方法。publicstaticImagegetCroppedImage(Imageimg,intx,inty,intw,inth,Componentcmp){ImageProducerimgP=img?getSourceO；CropImageFiltercif=newCropImageFi11er(x,y,w,h):ImageProducerip=newFi11ei^edImageSource(imgP,cif)；Imagecropped]mage=cmp?getToolkit()?createlmage(ip):trackImage(croppedimage,cmp)；returncroppedimage；}privatestaticvoidtrackImage(Imageimg?Componentcmp){MediaTrackertracker=newMediaTracker(cmp):tracker?addImage(img,0)；try{tracker,waitForID(0)；}catch(Exceptionex){ex.printStackTraceO:}}}效果圖:java圖片切割?縮放，轉(zhuǎn)換類型等等importjava?io.*； importjava?awt?*；importjava?awt?image?*；importjava.awt.Graphics；importjava?awt.color.ColorSpsce；importjavax?imageio.ImagelO；publicclassImageCut{/?**縮放圖像?paramsrcImageFile源圖像文件地址?paramresult縮放后的圖像地址?paramscale縮放比例?paramflag縮放選擇:true放大；false縮??；?/publicstaticvoidscale(StringsrcImageFile,Stringresult,intscale,booleanflag){try{Bufferedlmagesrc=ImagelO.read(newFile(srcImageFile))://讀入文件intwidth=src.getWidthO；//得到源圖寬intheight=src.getHeight()://得到源圖長if(flag){//放大width=width*scale；height=height*scale；}else{//縮小width=width/scale；height=height/scale；}Imageimage=src?getScaledlnstance(width.height,Image.SCALE_DEFAULT)；Bufferedlmagetag=newBufferedlmage(width,height,BufferedImage.TYPE^INTRGB）；Graphicsg=tag.getGrsphics()；g.drawImage(image,0,0,nul1)://繪制縮小后的圖g.disposeO；ImagelO.write(tag,MJPEGWFnewFile(result))://輸出到文件流}catch(IOExceptione){e.printStackTraceO；}}***圖像切割?paramsrcImageFile源圖像地址?paramdescDir切片目標文件夾?paramdestWidth目標切片寬度?paramdestHeight目標切片高度*/publicstaticvoidcut(StringsrcImageFile,StringdescDir,intdestWidth,intdestHeight){try{Imageimg；ImageF訂tercropFiIter；//讀取源圖像BufferedImagebi=Image10.read(newFile(srcImageFile)):intsrcWidth=bi.getHeight()；//源圖寬度intsrcHeight=bi.getWidthO://源圖高度if(srcWidth>destWidth&&srcHeight>destHeight){Imageimage=bi.getScaledlnstance(srcWidth,srcHeight,Image.SCALE_DEFAULT):destWidth=200；//切片寬度destHeight=150；//切片高度intcols=0；//切片橫向數(shù)量introws=0；//切片縱向數(shù)量//計算切片的橫向和縱向數(shù)量if(srcWidth%destWidth==0){cols=srcWidth/destWidth；}else{cols=(int)Math,floor(srcWidth/destWidth)+1；}if(srcHeight%destHeight==0){rows=srcHeight/destHeight；}else{rows=(int)Math?floor(srcHeight/destHeight)+1:}//循環(huán)建立切片//改進的想法：是否可用多線程加快切割速度for(inti=0；i<rows；i++){for(intj=0；j<cols；j卄){//四個參數(shù)分別為圖像起點坐標和寬高//即：CropImageFiIter(intx,inty,intwidth,intheight)cropFilter=newCropImageFi11er(j*200.i*150,destWidth,destHeight)；img=Toolkit.getDefaultToolkit()?createlmage(newFi1teredlmageSource(image?getSourceO,cropFiIter))；BufferedImagetag=newBuffei'edImage(destWidthtdestHeight,Bufferedlmage.TYPEJNT_RGB)；Graphicsg=tag?getGraphics()；g.drawlmage(imgt0,0,null)://繪制縮小后的圖g.disposeO；//輸出為文件ImagelO.write(tag,"JPEG”，newFile(descDir+^pre,map"+i+ +j+"?jpg"));}}}}catch(Exceptione){printStackTraceO；}}//圖像類型轉(zhuǎn)換GIF-〉JPGGIF->PNGPNG->JPGPNG->GIF(X)publicstaticvoidconvert(Stringsource,Stringresult){try{Filef=newFile(source):canReadO；f.canWrite()；Bufferedlmagesrc=Image10.read(f):Image10.write(srct"JPG",newFile(result)):}catch(Exceptione){//TODOAuto-generatedcatchblocke.printStackTraceO；}}//彩色轉(zhuǎn)為黑白publicstaticvoidgray(Stringsource.Stringresult){try{Bufferedlmagesrc=Image10.read(newFile(source)):ColorSpacecs=ColorSpace.getInstonce(ColorSp3ce?CSGRAY)；ColorConvertOpop=newColorConvert0p(cs,null)；

src=op.filter(src.null)；Image10.write(src,"JPEGJnewFile(result)):}catch(IOExceptione){e.printStackTraceO；}}publicstaticvoidmain(StringE]args){//cut(”e：/l?jpg", 200t150);}}［求助］大圖像分割并輸出分割后的小圖，程序有問題，求教程序要求就是，把一幅1620x1620的大圖片分割成20x20個81x81的小圖片，并把小圖片以P7G格式輸出，源碼如下，需輸入三個參數(shù):InputimagefileXCellYCell一一》2.jpg2020源碼不完全，現(xiàn)在暫時先計劃分割大圖第一個橫軸的長條，因為運行到Imagel0.write(Cellimage, HpngM, newFileC^^+spliter+i+spliter+,fOn+outFileName))；這行時就有問題。請求教哪里出了問題，急??//packageimageslicer；publicclasstest{importimportimportimportimportimportimportimportimportimportjava.awt?Container；importimportimportimportimportimportimportimportimportimportjava.awt?Container；java.awt.Graphics；java.awt?Image；java.awt?Rectangle；java.awt?Robot；importimportimportimportimportjava.awt?Dimension；java.awt?Graphics2D；java.awt.MediaTracker；java.awt?RenderingHints；java?awt?Toolkit；importjava?awt?inuige?CropImageFi1ter；java.awt?image?BufferedImage；java.awt?image?Fi11eredImageSource； importjava?awt?image?ImageFiIter；java.owt?image?ImageProducer； importjava.awt.image?RenderedIjava.io?File； importjavax?inuigeio.ImagelO；javax?imaigeio.stream.ImagelnputStream； importjavax?swing?Imsgelcon；privatestaticBufferedImageCel1Image；publicstaticvoidmain(StringEJargs)throwsException{//makesurewehaveexactlytwoarguments,//awaitingperiodandafilenameif(args,length!=3){System.err?println("Us3ge：javatest”+HInputimagefileXCellYCell")；System?exit(1)；StringinputFileName=args[O]:Toolkittoolkit=Toolkit.getDefaultToolkit():Imageimage=toolkit?getImage(inputFileName):MediaTrackertracker=newMediaTracker(newContainer()):tracker?addImage(image,1)；try{tracker?waitForlD(l)；}catch(InterruptedExceptione){}StringoutFileName=u.png"；Stringspliter=°-"；intXCel1=Integer?parselnt(args[l])；intYCel1=Integer?parselnt(args[2])；//ImageProducerproducer=image?getSource()；//Bufferedlmage CellImage=newBufferedlmage(81.81.Bufferedlmage.TYPE^INTRGB):Image[]Cell=newImageXCell；for(inti=0；i<=XCell-1；i++){ImageFilterfilter=newCropImageFiIter(0+i*81.0,81,81):ImageProducer producer=newFi1teredImageSource(image?getSourceO.filter)；//Cel1[i]=createImage(newFiIteredlmageSource(producer,filter)):Cel1[i]=createlmage((Fi1teredlmageSource)producer):CellImage=(Bufferedlmage)Cell[i]；tracker?addImage(Cell[i].2)://CellImage=ImagelO.read((ImagelnputStream)Cell[i]):Bufferedlmage Cellimage=new Bufferedlmage(81.81.Bufferedlmage.TYPE^INTRGB):CellImage=(Bufferedlmage)Cell[i]；Image10.write(CellImage, "png". newF訂e(M2M+spliter+i+spliter+w0M+outFileName))；}try{tracker,waitForID(2)；}catch(InterruptedExceptione){}//Bufferedlmageimage=robot?cresteScreenCapture(screenRect)；}publicvoidpaint(Graphicsg){Graphics2Dg2=(Graphics2D)g；}privatestaticImagecreatelmage(Fi1teredlmageSourcesource){//TODOAuto-generatedmethodstubreturnnull；}}問題解決了，原因如下切割圖片并輸出時，不能用下面的方法，下面的方法是適合在屏幕上顯示或者copy到內(nèi)存里供其它使用ImageFilterfilter=newCropImageFiIter(0+i*81,0,81,81)；ImageProducer producer=newFi1teredImageSource(image?getSourceO.filter)；//Cel1[i]=createImage(newFi1teredImageSource(producer,filter)):Cel1[i]=createlmage((Fi1teredlmageSource)producer):而要用getSubimage方法，這才是適合成圖輸出的方法BufferedImageCellImage=newBufferedImage(newFi1e( ))；Celllmage.getSubimage(0+i*81#0,81t81)；用Java簡單實現(xiàn)文件分割與合并，主要應用10的RandomAccessFile(聽說斷點續(xù)傳是用它實現(xiàn))importjava?io?*；classFen{Stringfi1eName；intsize；Fen(StringfileName,Stringsize){this?fileNsme=fileName；this.size=Integer?parselnt(size)*1024；}publicvoidcut()throwsExceptiontintmaxx=0；FileinFile=newFile(fileName):intfileLength=(int)inFile,length()://取得文件的大小intvalue；〃取得要分割的個數(shù)RandomAccessFi1einn=newRandomAccessF訂e(inF訂e,U;〃打開要分割的文件value=fileLength/size；inti=0；intj=0；〃根據(jù)要分割的數(shù)目輸出文件for(:jFileoutFile=newFile(inFile?getName()+j+"zzii")；RandomAccessFileoutt=newRandom/\ccessFile(outFile,nrwn):maxx+=size；for(；ioutt.write(inn.readO):}outt?closeO；}FileoutFile=newFile(inFile?get'mne()+j+"zzii")；RandomAccessFileoutt=newRandom/\ccessFile(outFile,nrwn):for(:i＞；)outt?writednn?read())；}outt?closeO；inn