java 图像处理 多种算法实现 有部分文档

package roc; import java.awt.Color; import java.awt.FlowLayout; import java.awt.Graphics2D; import java.awt.GridLayout; import java.awt.Image; import java.awt.color.ColorSpace; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.image.BufferedImage; import java.awt.image.ColorConvertOp; import java.awt.image.ColorModel; import java.awt.image.Raster; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import javax.imageio.ImageIO; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class EditPicture { public BufferedImage bgm; int [] pix; int [][] xiangsu; int [] times; int [] cdf; int [][] output; int cdfmax; int cdfmin; int pxmin; int pxmax; int width; int height; String FileName; String FilePath; JFrame frame; JPanel change; JButton junzhi; JButton xianxing; JButton weizhi; LinePanel lpanel; public EditPicture(File f) { // TODO Auto-generated constructor stub FileName = f.getName(); FilePath = f.getParentFile().getPath(); System.out.println(this.FilePath); try { bgm = ImageIO.read(new FileInputStream(f)); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } width = bgm.getWidth(); height = bgm.getHeight(); times = new int[256]; cdf = new int[256]; xiangsu = new int[width][height]; output = new int[width][height]; bgm = getGrayPicture(bgm); outputImage(this.bgm,"Gray"); //得到灰度图 initMatrix(); //初始化像素矩阵 xiangsu【】【】 及 各个灰度出现频数数组times【】 //界面 { frame = new JFrame(); lpanel = new LinePanel(this.pxmin,this.pxmax); DrawImage dimg = new DrawImage(bgm); change = new JPanel(); xianxing = new JButton("线性 变换"); //weizhi = new JButton("XXXXX"); //junzhi.setPreferredSize(new java.awt.Dimension(74, 32)); //change.add(junzhi); //change.add(lpanel); //change.add(weizhi); frame.setLayout(new FlowLayout(FlowLayout.CENTER,0,0)); frame.add(lpanel); frame.add(dimg); frame.setSize(600, 800); frame.setVisible(true); lpanel.junheng.addActionListener(new action()); //junzhi.addActionListener(new action()); lpanel.lineButton.addActionListener(new action()); lpanel.DCTbutton.addActionListener(new action()); lpanel.fftButton.addActionListener(new action()); lpanel.Edge.addActionListener(new action()); } } class action implements ActionListener { public void actionPerformed(ActionEvent e) { if(e.getSource() == lpanel.junheng){ junheng(); } if(e.getSource() == lpanel.lineButton){ linestretch(); } if(e.getSource() == lpanel.fftButton){ usefft(); } if(e.getSource() == lpanel.DCTbutton){ usedct(); } if(e.getSource() == lpanel.Edge){ String s = lpanel.jComboBox1.getSelectedItem().toString(); useEdge(s); } } } //BufferedImage 图像输出函数 public void outputImage(BufferedImage img, String headName) { //输出灰度图 try { ImageIO.write(img, "jpg", new File(FilePath+"/"+headName+FileName)); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } //直方图均衡函数 public void junheng(){ //初始化 cdf数组 for(int i=0; i<256; i++){ cdf[i] = 0; } int past = -1; while(times[++past] == 0); //获得最小灰度点 if(past < 256){ cdf[past] = times[past]; cdfmin = cdf[past]; } for(int i=past+1; i<256; i++) { if(times[i] != 0){ cdf[i] += cdf[past]+times[i]; //累加 past = i; } } cdfmax = cdf[past]; // 进行均衡变换 int wid, hgt ,mul; wid = bgm.getWidth(); hgt = bgm.getHeight(); mul = wid*hgt; for(int i=0; i<wid; i++){ for(int j=0; j<hgt; j++){ int hv = (int) Math.round(1.0*(cdf[xiangsu[i][j]]-cdfmin)/(mul-cdfmin)*255); output[i][j] = hv; } } //输出文件 BufferedImage xhere = null; try { xhere = createMatrixImage(output,"D://HT"+FileName); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } //窗口显示 DrawImage dimg = new DrawImage(xhere); JFrame usod = new JFrame(); usod.add(dimg); usod.setSize(600,600); usod.setLocation(600, 35); usod.setVisible(true); } private void showImage(BufferedImage img,String title){ DrawImage dimg = new DrawImage(img); JFrame usod = new JFrame(); usod.add(dimg); usod.setTitle(title); usod.setSize(600,600); usod.setLocation(600, 35); usod.setVisible(true); } private void showImage(Image img, String title){ BufferedImage xx ; if (img instanceof BufferedImage) { xx = (BufferedImage) img; } else{ // Create a buffered image with transparency xx = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB); // Draw the image on to the buffered image Graphics2D bGr = xx.createGraphics(); bGr.drawImage(img, 0, 0, null); bGr.dispose(); } // Return the buffered image DrawImage dimg = new DrawImage(xx); JFrame usod = new JFrame(); usod.setTitle(title); usod.add(dimg); usod.setSize(600,600); usod.setLocation(600, 35); usod.setVisible(true); } //线性变换 public void linestretch(){ System.out.println("lineS start"); int c; int d; //读取UI文本框的数字 String sc = lpanel.TextC.getText(); String sd = lpanel.TextD.getText(); if(sc.length()*sd.length() !=0){ c = Integer.parseInt(sc); d = Integer.parseInt(sd); } else return; if(c > d || c <0 || d > 256) return; int wid, hgt ,mul; wid = bgm.getWidth(); hgt = bgm.getHeight(); mul = wid*hgt; //进行线性变换 for(int i=0; i<wid; i++){ for(int j=0; j<hgt; j++){ int hv = (int) (1.0*(d-c)/(this.pxmax-pxmin)*(this.xiangsu[i][j]-pxmin)+c); output[i][j] = hv; } } BufferedImage xhere = null; try { xhere = createMatrixImage(output,"D://Line"+FileName); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } DrawImage dimg = new DrawImage(xhere); JFrame usod = new JFrame(); usod.add(dimg); usod.setSize(600,600); usod.setLocation(600, 35); usod.setVisible(true); } //转换为灰度图 public BufferedImage getGrayPicture(BufferedImage originalImage) { BufferedImage grayPicture; int imageWidth = originalImage.getWidth(); int imageHeight = originalImage.getHeight(); grayPicture = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_3BYTE_BGR); ColorConvertOp cco = new ColorConvertOp(ColorSpace .getInstance(ColorSpace.CS_GRAY), null); cco.filter(originalImage, grayPicture); return grayPicture; } //二维矩阵输出图像文件 public BufferedImage createMatrixImage(int[][] matrix, String filedir) throws IOException{ int cx = matrix.length; int cy = matrix[0].length; //填充矩形高宽 int cz = 1; //生成图的宽度 int width = cx * cz; //生成图的高度 int height = cy * cz; OutputStream output = new