java图像分割方法集合.doc

import java.awt.*;import javax.swing.*;class ImageTest extends JFrame public ImageTest() setSize(300,300); setVisible(true); public Image splitImage(String file, int rows, int cols) System.out.println(Test);Image t=new ImageIcon(file).getImage(); Image result = new Imagerows * cols; int w = t.getWidth(this)/cols; int h = t.getHeight(this)/rows; try for(int i = 0;iresult.length;i+) resulti = this.createImage(w,h); Graphics g = resulti.getGraphics(); g.translate(-i%cols)*w,(-i/cols)*h); g.drawImage(t,0,0,this); System.out.println(Test); catch(Exception e) return result; class Test extends JFrame public Test() setSize(300,300); setVisible(true); public void paint(Graphics g) ImageTest tt = new ImageTest(); Image image = tt.splitImage(1.gif,5,5); g.drawImage(image0,0,0,this); public static void main(String args) new Test(); 将一个大图像分割成几个小图像的代码/分割图像的方法。 import javax.swing.*; import java.awt.*; import java.awt.image.*;import .URL; import java.io.File;import java.util.Hashtable; public class ChenWin504 extends JApplet Image im; MediaTracker me; Image imag; public static Hashtable cache; public void init() URL ur=ChenWin504.class.getResource(images/ima); imag=new Image10; System.out.println(ur); im=getToolkit().getImage(images/ima/jumptojavastrip.png); me=new MediaTracker(this); me.addImage(im,0); try me.waitForID(0); catch(Exception e) DemoImages(); for(int i=0;i10;i+) imagi=(Image)cache.get(jumptojavastrip-+i+.png); if(imagi=null) System.out.println(null); public void paint(Graphics g) int x=5; int y=100; g.drawImage(im,5,0,null); for(int i=0;i300) x=5;y+=100; public void DemoImages() URL url = ChenWin504.class.getResource(images/ima); File dir = new File(url.getFile(); if (dir != null & dir.isDirectory() String list = dir.list(); System.out.println(list.length); cache = new Hashtable(list.length); for (int i = 0; i list.length; i+) cache.put(listi, createImage(listi, this); if (cache.containsKey(jumptojavastrip.png) Image img = (Image) cache.get(jumptojavastrip.png); for (int i=0, x=0; i destWidth & srcHeight destHeight) Image image = bi.getScaledInstance(srcWidth, srcHeight, Image.SCALE_DEFAULT); destWidth = 200; / 切片宽度 destHeight = 150; / 切片高度 int cols = 0; / 切片横向数量 int rows = 0; / 切片纵向数量 / 计算切片的横向和纵向数量 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; / 循环建立切片 / 改进的想法:是否可用多线程加快切割速度 for (int i = 0; i rows; i+) for (int j = 0; j JPG GIF-PNG PNG-JPG PNG-GIF(X) public static void convert(String source, String result) try File f = new File(source); f.canRead(); f.canWrite(); BufferedImage src = ImageIO.read(f); ImageIO.write(src, JPG, new File(result); catch (Exception e) / TODO Auto-generated catch block e.printStackTrace(); / 彩色转为黑白 public static void gray(String source, String result) try BufferedImage src = ImageIO.read(new File(source); ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY); ColorConvertOp op = new ColorConvertOp(cs, null); src = op.filter(src, null); ImageIO.write(src, JPEG, new File(result); catch (IOException e) e.printStackTrace(); public static void main(String args) /cut(e:/1.jpg, e:/t/, 200, 150); 求助大图像分割并输出分割后的小图，程序有问题，求教程序要求就是，把一幅1620x1620的大图片分割成20x20个 81x81的小图片，并把小图片以PNG格式输出，源码如下，需输入三个参数：Inputimagefile XCell YCell 2.jpg 20 20源码不完全，现在暂时先计划分割大图第一个横轴的长条，因为运行到ImageIO.write(CellImage, png, new File(2+spliter+i+spliter+0+outFileName);这行时就有问题。请求教哪里出了问题，急/package imageslicer;import java.awt.Container;import java.awt.Dimension;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.Image;import java.awt.MediaTracker;import java.awt.Rectangle;import java.awt.RenderingHints;import java.awt.Robot;import java.awt.Toolkit;import java.awt.image.BufferedImage;import java.awt.image.CropImageFilter;import java.awt.image.FilteredImageSource;import java.awt.image.ImageFilter;import java.awt.image.ImageProducer;import java.awt.image.RenderedImage;import java.io.File;import javax.imageio.ImageIO;import javax.imageio.stream.ImageInputStream;import javax.swing.ImageIcon;public class test private static BufferedImage CellImage; public static void main(String args) throws Exception / make sure we have exactly two arguments, / a waiting period and a file name if (args.length != 3) System.err.println(Usage: java test + Inputimagefile XCell YCell); System.exit(1); String inputFileName = args0; Toolkit toolkit = Toolkit.getDefaultToolkit(); Image image = toolkit.getImage(inputFileName); MediaTracker tracker = new MediaTracker(new Container(); tracker.addImage(image, 1); try tracker.waitForID(1); catch(InterruptedException e) String outFileName = .png; String spliter =-; int XCell = Integer.parseInt(args1); int YCell = Integer.parseInt(args2); /ImageProducer producer = image.getSource(); /BufferedImage CellImage = new BufferedImage(81,81, BufferedImage.TYPE_INT_RGB); Image Cell = new Image XCell ; for (int i = 0; i ;)outt.write(inn.read(); outt.close();inn.close(); class HeString fileName;String filterName;He(String fileName,String filterName) this.fileName = fileName;this.filterName = filterName; public void unite()throws Exception String tt; File inFile = new File(.); /在当前目录下的文件 File outFile = new File(fileName); /取得输出名RandomAccessFile outt= new RandomAccessFile(outFile,rw); /取得符合条件的文件名 tt = inFile.list(new FilenameFilter() public boolean accept(File dir,String name) String rr = new File(name).toString(); retu