互联网络
e668. 在一组像素中创建缓冲图像
ThisexampledemonstrateshowtoconvertabytearrayofpixelvaluesthatareindicestoacolortableintoaBufferedImage.Inparticular,theexamplegeneratestheMandelbrotsetinabyteb...
e660. 用一组像素创建图像
ThisexampledemonstrateshowtoconvertabytearrayofpixelvaluesthatareindicestoacolortableintoanImage.Inparticular,theexamplegeneratestheMandelbrotsetinabytebufferan...
e671. 在缓冲图像中存取像素
//Getapixelintrgb=bufferedImage.getRGB(x,y);//Getallthepixelsintw=bufferedImage.getWidth(null);inth=bufferedImage.getHeight(null);int[]rgbs=newint[w*h];bu...
e677. 模糊化图像
Thisexampledemonstratesa3x3kernelthatblursanimage.Kernelkernel=newKernel(3,3,newfloat[]{1f/9f,1f/9f,1f/9f,1f/9f,1f/9f,1f/9f,1f/9f,1f/9f,1f/9f});BufferedImageOpo...
e661. 确定图像中是否有透明像素
//ThismethodreturnstrueifthespecifiedimagehastransparentpixelspublicstaticbooleanhasAlpha(Imageimage){//Ifbufferedimage,thecolormodelisreadilyavailableif(imagei...
e667. 在给定图像中创建缓冲图像
AnImageobjectcannotbeconvertedtoaBufferedImageobject.Theclosestequivalentistocreateabufferedimageandthendrawtheimageonthebufferedimage.Thisexampledefinesamethod...
e663. 在gif图像中获取透明和色彩的数量
AIndexColorModelisusedtorepresentthecolortableofaGIFimage.//GetGIFimageImageimage=newImageIcon("image.gif").getImage();//Getthecolormodel;thismethodisimplemente...
e662. 取的图像的色彩模型
//ThismethodreturnsthecolormodelofanimagepublicstaticColorModelgetColorModel(Imageimage){//Ifbufferedimage,thecolormodelisreadilyavailableif(imageinstanceofBuff...
e675. 翻转缓冲图像
//Tocreateabufferedimage,seee666创建缓冲图像//FliptheimageverticallyAffineTransformtx=AffineTransform.getScaleInstance(1,-1);tx.translate(0,-image.getHeight(null));Af...
e665. 在图像中过滤三元色
ThisexampledemonstrateshowtocreateafilterthatcanmodifyanyoftheRGBpixelvaluesinanimage.//ThisfilterremovesallbuttheredvaluesinanimageclassGetRedFilterextendsRGBI...
e679. 浮雕化图像
Thisexampledemonstratesa3x3kernelthatembossesanimage.Kernelkernel=newKernel(3,3,newfloat[]{-2,0,0,0,1,0,0,0,2});BufferedImageOpop=newConvolveOp(kernel);buffered...
e669. 绘制缓冲图像
Todrawonabufferedimage,createagraphicscontextonthebufferedimage.//CreateagraphicscontextonthebufferedimageGraphics2Dg2d=bimage.createGraphics();//Drawontheimage...
e664. 在图像中获取子图像
//FromanImageimage=createImage(newFilteredImageSource(image.getSource(),newCropImageFilter(x,y,w,h)));//FromaBufferedImagebufferedImage=bufferedImage.getSubimag...
e672. 缩放，剪取，移动，翻转缓冲图像
AffineTransformtx=newAffineTransform();tx.scale(scalex,scaley);tx.shear(shiftx,shifty);tx.translate(x,y);tx.rotate(radians,bufferedImage.getWidth()/2,bufferedIm...
e670. 缓冲图像转换为图像
//ThismethodreturnsanImageobjectfromabufferedimagepublicstaticImagetoImage(BufferedImagebufferedImage){returnToolkit.getDefaultToolkit().createImage(buffe...
