问题描述
import java.awt.*;import java.awt.event.*;import java.awt.image.*;import javax.imageio.ImageIO;import javax.swing.*;import javax.swing.filechooser.FileSystemView;import java.io.*;import java.text.SimpleDateFormat;import java.util.*;/* * 图片编辑器 */public class PicEdit extends JFrame { private int currentPixArray[] = null;// 保存当前操作的像素矩阵 BufferedImage bufImage = null; //用于显示的缓冲区图像 BufferedImage originalBufImage; //原始缓冲区图像private String lastDir = "";// 图像的路径 private JLabel imageLabel = null;// 用于显示图像的标签 private BufferedImage newImage;// 加载的图像 private int h, w;// 图像的高和宽 private LinkedList<int[]> imageStack = new LinkedList<int[]>();// 保存历史操作图像矩阵 private LinkedList<int[]> tempImageStack = new LinkedList<int[]>(); public PicEdit() { super("图片特效工具"); // 创建菜单 JToolBar toolBar = new JToolBar();this.add(toolBar,BorderLayout.NORTH);//skin sk = new skin();JButton openbutton = new JButton(new ImageIcon("sk.getAddpic()"));//JButton exitbutton = new JButton(new ImageIcon("sk.getExit()"));//JButton graybutton = new JButton(new ImageIcon("sk.getGray()"));//JButton balancebutton = new JButton(new ImageIcon("sk.getBalance()"));JButton blurbutton = new JButton(new ImageIcon("sk.getBlur()"));JButton sharpenbutton = new JButton(new ImageIcon("sk.getSharpen()"));JButton resetbutton = new JButton(new ImageIcon("sk.getReset()"));JButton backbutton = new JButton(new ImageIcon("sk.getPrevious()"));JButton frontbutton = new JButton(new ImageIcon("sk.getNext()"));//JButton waterbutton = new JButton(new ImageIcon("sk.getWater()"));//JButton spotlightbutton = new JButton(new ImageIcon("sk.getSpotlight()"));//JButton bitbltbutton = new JButton(new ImageIcon("sk.getBiblt()"));//JButton printscbutton = new JButton(new ImageIcon("sk.getPrintsc()"));JButton savebutton = new JButton(new ImageIcon("sk.getSave()"));openbutton.setToolTipText("打开文件");openbutton.setText("打开文件");openbutton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);//让文字置于图标openbutton.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);//下方openbutton.addActionListener(new OpenListener());blurbutton.setToolTipText("模糊");blurbutton.setText("模糊");blurbutton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);blurbutton.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);blurbutton.addActionListener(new BlurActionListener());sharpenbutton.setToolTipText("锐化");sharpenbutton.setText("锐化");sharpenbutton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);sharpenbutton.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);sharpenbutton.addActionListener(new SharpenActionListener());resetbutton.setToolTipText("还原");resetbutton.setText("还原");resetbutton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);resetbutton.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);resetbutton.addActionListener(new ResetMenuItemActionListener());backbutton.setToolTipText("后退");backbutton.setText("后退");backbutton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);backbutton.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);backbutton.addActionListener(new BackActionListener());frontbutton.setToolTipText("前进");frontbutton.setText("前进");frontbutton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);frontbutton.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);frontbutton.addActionListener(new FrontActionListener());savebutton.setToolTipText("保存图片到桌面");savebutton.setText("保存");savebutton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);savebutton.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);savebutton.addActionListener(new SaveListener());toolBar.add(openbutton);toolBar.add(blurbutton);toolBar.add(sharpenbutton);toolBar.add(backbutton);toolBar.add(frontbutton);toolBar.add(resetbutton);toolBar.add(savebutton);this.setSize(1200,700);this.setLocation(20,20);this.setVisible(true);this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); imageLabel = new JLabel(""); JScrollPane pane = new JScrollPane(imageLabel); this.add(pane, BorderLayout.CENTER); this.setVisible(true); } //-----------------菜单监听器---------------// private class OpenListener implements ActionListener { public void actionPerformed(ActionEvent e) { FileDialog d = new FileDialog(PicEdit.this,"Open image file",FileDialog.LOAD); d.setFile(".jpg"); d.setDirectory(lastDir); d.setVisible(true); String file = d.getFile(); lastDir = d.getDirectory(); if(file!=null) { try { newImage = ImageIO.read(new File(lastDir+file)); originalBufImage = newImage; w = newImage.getWidth(); h = newImage.getHeight(); currentPixArray = getPixArray(newImage, w, h); imageStack.clear(); tempImageStack.clear(); imageStack.addLast(currentPixArray); imageLabel.setIcon(new ImageIcon(newImage)); } catch (IOException ex) { System.out.println(ex); } } PicEdit.this.repaint(); } } private class BackActionListener implements ActionListener { public void actionPerformed(ActionEvent e) { if (imageStack.size() <= 1) { JOptionPane.showMessageDialog(null, "此幅图片的处理已经没有后退历史操作了", "提示", JOptionPane.INFORMATION_MESSAGE); } else { tempImageStack.addLast(imageStack.removeLast()); currentPixArray = imageStack.getLast(); showImage(currentPixArray); PicEdit.this.setRGB(newImage,0,0,w,h,currentPixArray);//将变换后的结果保存到newImage里 } } } private class FrontActionListener implements ActionListener { public void actionPerformed(ActionEvent e) { if (tempImageStack.size() < 1) { JOptionPane.showMessageDialog(null, "此幅图片的处理已经没有前进历史操作了", "提示", JOptionPane.INFORMATION_MESSAGE); } else { currentPixArray = tempImageStack.removeFirst(); imageStack.addLast(currentPixArray); showImage(currentPixArray); PicEdit.this.setRGB(newImage,0,0,w,h,currentPixArray); } } } private class BlurActionListener implements ActionListener{ public void actionPerformed(ActionEvent e){ PicEdit.this.blur(); } } private class SharpenActionListener implements ActionListener{ public void actionPerformed(ActionEvent e){ PicEdit.this.sharpen(); } } private class ResetMenuItemActionListener implements ActionListener{ public void actionPerformed(ActionEvent e){ PicEdit.this.reset(); } } private class SaveListener implements ActionListener{ public void actionPerformed(ActionEvent e){ save(); } } //-----------------过滤图像---------------// public void applyFilter(float[] data) { if (newImage == null) return; //如果newImage为空则直接返回 Kernel kernel = new Kernel(3, 3, data); ConvolveOp imageOp=new ConvolveOp(kernel,ConvolveOp.EDGE_NO_OP, null); //创建卷积变换操作对象 BufferedImage filteredBufImage = new BufferedImage(newImage.getWidth(PicEdit.this),newImage.getHeight(PicEdit.this),BufferedImage.TYPE_INT_ARGB); //过滤后的缓冲区图像 imageOp.filter(newImage, filteredBufImage);//过滤图像，目标图像在filteredBufImage newImage = filteredBufImage; //让用于显示的缓冲区图像指向过滤后的图像 int[] resultArray = getPixArray(newImage, w, h);imageStack.addLast(resultArray); currentPixArray = resultArray; showImage(resultArray); tempImageStack.clear(); PicEdit.this.setRGB(newImage,0,0,w,h,resultArray); } //-----------------模糊图像---------------// public void blur() { if (newImage == null) return; float[] data = { 0.0625f, 0.125f, 0.0625f, 0.125f, 0.025f, 0.125f, 0.0625f, 0.125f, 0.0625f }; applyFilter(data); } //-----------------锐化图像---------------// public void sharpen() { if (newImage == null) return; float[] data = { -1.0f, -1.0f, -1.0f, -1.0f, 9.0f, -1.0f, -1.0f, -1.0f, -1.0f }; applyFilter(data); } //-----------------还原图像---------------// public void reset() { if (newImage == null) return; int[] resultArray = imageStack.getFirst(); imageStack.addLast(resultArray); currentPixArray = resultArray; showImage(resultArray); tempImageStack.clear(); PicEdit.this.setRGB(newImage,0,0,w,h,resultArray); } //-----------------获取图像像素矩阵---------------// private int[] getPixArray(Image im, int w, int h) { int[] pix = new int[w * h]; PixelGrabber pg = null; try { pg = new PixelGrabber(im, 0, 0, w, h, pix, 0, w); if (pg.grabPixels() != true) try { throw new java.awt.AWTException("pg error" + pg.status()); } catch (Exception eq) { eq.printStackTrace(); } } catch (Exception ex) { ex.printStackTrace(); } return pix; } //-----------------显示图片---------------// private void showImage(int[] srcPixArray) { Image pic = createImage(new MemoryImageSource(w, h, srcPixArray, 0, w)); ImageIcon ic = new ImageIcon(pic); imageLabel.setIcon(ic); imageLabel.repaint(); } //-----------------将图像数组转变成BufferedImage图像---------------// public void setRGB( BufferedImage image, int x, int y, int width, int height, int[] pixels ) {int type = image.getType();if ( type == BufferedImage.TYPE_INT_ARGB || type == BufferedImage.TYPE_INT_RGB )image.getRaster().setDataElements( x, y, width, height, pixels );elseimage.setRGB( x, y, width, height, pixels, 0, width ); } //-----------------保存图像到桌面---------------// public void save(){ SimpleDateFormat sdf = new SimpleDateFormat("yyyymmddHHmmss"); String name = sdf.format(new Date()); File path = FileSystemView.getFileSystemView().getHomeDirectory(); String format = "jpg"; File f = new File(path + File.separator + name + "." + format); try { ImageIO.write(newImage, format, f); } catch (IOException e) { e.printStackTrace(); } } public static void main(String[] args){ new PicEdit(); } }
解决方案
最简单就是改格式引用String format = "jpg"; String format = "png"; ConvolveOp 这个鬼东西，问题多多。我是从来没搞清楚过。另外，推荐http://www.jhlabs.com/ip/index.html这个库，用过，还好。比JDK自己的东西好。