java实现图片水平和垂直翻转效果

package mypackage; import javax.imageio.ImageIO;import java.awt.*;import java.awt.image.BufferedImage;import java.io.File; /** * Author Mythos_Q * * Time 2011-07-20 * * Description 图片旋转、翻转处理 */public class ImgRotate { static int Up_Down_Reverse = 0; static int Left_Right_Reverse = 1;  /**  * 旋转图片为指定角度  *   * @param bufferedimage  *   目标图像  * @param degree  *   旋转角度  * @return  */ public static BufferedImage rotateImage(final BufferedImage bufferedimage,final int degree){  int w = bufferedimage.getWidth();  int h = bufferedimage.getHeight();  int type = bufferedimage.getColorModel().getTransparency();  BufferedImage img;  Graphics2D graphics2d;  (graphics2d = (img = new BufferedImage(h, w, type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);  graphics2d.rotate(Math.toRadians(degree), w / 2, h / 2 + (w>h?(w-h)/2:(h-w)/2));  graphics2d.drawImage(bufferedimage, 0, 0, null);  graphics2d.dispose();  return img; }  /**  * 旋转图片为指定角度  *  * @param file  *   目标图像  * @param degree  *   旋转角度(90,180,270)  * @return  */ public static File rotateImage(File file,int degree) throws Exception{  if(degree==90) return rotateImage90(file);  if(degree==180) return rotateImage180(file);  if(degree==270) return rotateImage270(file);  return null; } public static Image rotateImage(Image Image,int degree)  {  if(degree==90)    return rotateImage90(Image);  if(degree==180)   return rotateImage180(Image);  if(degree==270)   return rotateImage270(Image);  return null; }  private static Image rotateImage90(Image image)  {  BufferedImage bufferedimage = ImageToBufferedImage(image);  int w = bufferedimage.getWidth();  int h = bufferedimage.getHeight();  int type = bufferedimage.getColorModel().getTransparency();  BufferedImage img;  Graphics2D graphics2d;  (graphics2d =    (img = new BufferedImage(h, w, type) ).createGraphics()  ).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);  graphics2d.rotate(Math.toRadians(270), w / 2, h / 2 + (w-h)/2);  graphics2d.drawImage(bufferedimage, 0, 0, null);  graphics2d.dispose();    return BufferedImageToImage(img);  }  //左转90度 public static File rotateImage90(File file) throws Exception {  BufferedImage bufferedimage = ImageIO.read(file);  int w = bufferedimage.getWidth();  int h = bufferedimage.getHeight();  int type = bufferedimage.getColorModel().getTransparency();  BufferedImage img;  Graphics2D graphics2d;  (graphics2d =    (img = new BufferedImage(h, w, type) ).createGraphics()  ).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);  graphics2d.rotate(Math.toRadians(270), w / 2, h / 2 + (w-h)/2);  graphics2d.drawImage(bufferedimage, 0, 0, null);  graphics2d.dispose();  ImageIO.write(img,"jpg",file);  return file; }  //右转90度 public static File rotateImage270(File file) throws Exception {  BufferedImage bufferedimage = ImageIO.read(file);  int w = bufferedimage.getWidth();  int h = bufferedimage.getHeight();  int type = bufferedimage.getColorModel().getTransparency();  BufferedImage img;  Graphics2D graphics2d;  (graphics2d = (img = new BufferedImage(h, w, type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);  graphics2d.rotate(Math.toRadians(90), w / 2 - (w-h)/2, h / 2 );  graphics2d.drawImage(bufferedimage, 0, 0, null);  graphics2d.dispose();  ImageIO.write(img,"jpg",file);  return file; }  public static Image rotateImage270(Image image) {  BufferedImage bufferedimage = ImageToBufferedImage(image);  int w = bufferedimage.getWidth();  int h = bufferedimage.getHeight();  int type = bufferedimage.getColorModel().getTransparency();  BufferedImage img;  Graphics2D graphics2d;  (graphics2d = (img = new BufferedImage(h, w, type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);  graphics2d.rotate(Math.toRadians(90), w / 2 - (w-h)/2, h / 2 );  graphics2d.drawImage(bufferedimage, 0, 0, null);  graphics2d.dispose();    return BufferedImageToImage(img); } //对转 public static File rotateImage180(File file) throws Exception {  BufferedImage bufferedimage = ImageIO.read(file);  int w = bufferedimage.getWidth();  int h = bufferedimage.getHeight();  int type = bufferedimage.getColorModel().getTransparency();  BufferedImage img;  Graphics2D graphics2d;  (graphics2d = (img = new BufferedImage(w, h, type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);  graphics2d.rotate(Math.toRadians(180), w / 2, h / 2 );  graphics2d.drawImage(bufferedimage, 0, 0, null);  graphics2d.dispose();  ImageIO.write(img,"jpg",file);  return file; } public static Image rotateImage180(Image image) {  BufferedImage bufferedimage = ImageToBufferedImage(image);  int w = bufferedimage.getWidth();  int h = bufferedimage.getHeight();  int type = bufferedimage.getColorModel().getTransparency();  BufferedImage img;  Graphics2D graphics2d;  (graphics2d = (img = new BufferedImage(w, h, type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);  graphics2d.rotate(Math.toRadians(180), w / 2, h / 2 );  graphics2d.drawImage(bufferedimage, 0, 0, null);  graphics2d.dispose();   return BufferedImageToImage(img); } /***  * 图片镜像处理  * @param file  * @param FX 0 为上下反转 1 为左右反转  * @return  */ public static void imageMisro(File file,int FX) {  try   {   BufferedImage bufferedimage = ImageIO.read(file);   int w = bufferedimage.getWidth();   int h = bufferedimage.getHeight();      int[][] datas = new int[w][h];   for (int i = 0; i < h; i++) {    for (int j = 0; j < w; j++) {     datas[j][i] = bufferedimage.getRGB(j, i);    }   }   int[][] tmps = new int[w][h];   if (FX == 0) {    for (int i = 0, a = h - 1; i < h; i++, a--) {     for (int j = 0; j < w; j++) {      tmps[j][a] = datas[j][i];     }    }   } else if (FX == 1) {    for (int i = 0; i < h; i++) {     for (int j = 0, b = w - 1; j < w; j++, b--) {      tmps[b][i] = datas[j][i];     }    }   }   for (int i = 0; i < h; i++){    for (int j = 0; j<w ;j++){     bufferedimage.setRGB(j, i, tmps[j][i]);    }   }      ImageIO.write(bufferedimage, "jpg", file);     } catch (Exception e) {   e.printStackTrace();  } }  /*  *   * 镜像处理，输入image和方式，返回翻转的新image  * type = 0 表示上下翻转，type = 1 表示左右翻转  */ public static Image imageMisro(Image image,int type ) {  try   {    //用到了自己写的方法   BufferedImage bufferedimage = ImageToBufferedImage(image);        int w = bufferedimage.getWidth();   int h = bufferedimage.getHeight();      int[][] datas = new int[w][h];   for (int i = 0; i < h; i++) {    for (int j = 0; j < w; j++) {     datas[j][i] = bufferedimage.getRGB(j, i);    }   }   int[][] tmps = new int[w][h];   if (type == 0) {    for (int i = 0, a = h - 1; i < h; i++, a--) {     for (int j = 0; j < w; j++) {      tmps[j][a] = datas[j][i];     }    }   } else if (type == 1) {    for (int i = 0; i < h; i++) {     for (int j = 0, b = w - 1; j < w; j++, b--) {      tmps[b][i] = datas[j][i];     }    }   }   for (int i = 0; i < h; i++){    for (int j = 0; j<w ;j++){     bufferedimage.setRGB(j, i, tmps[j][i]);    }   }         Image newImage = (Image)bufferedimage;   return newImage;   //ImageIO.write(bufferedimage, "jpg", file);     } catch (Exception e) {   e.printStackTrace();  } return null; }  //Image转换成BufferedImage public static BufferedImage ImageToBufferedImage( Image image ) {  BufferedImage bufferedimage = new BufferedImage  (image.getWidth(null), image.getHeight(null),BufferedImage.TYPE_INT_RGB);   Graphics g = bufferedimage.createGraphics();   g.drawImage(image, 0, 0, null); //这里，大家可能会有疑问，似乎没有对bufferedimage干啥  g.dispose();  //但是是正确的，g调用drawImage就自动保存了  return bufferedimage; } //BufferedImage 转换成Image类型 public static Image BufferedImageToImage( BufferedImage b ) {  return (Image)b; }}

package mypackage; import java.awt.*;import java.awt.image.*;import java.net.URL; import javax.swing.*; public class Test extends JPanel{ JFrame frame; Image image = new ImageIcon("hand2.jpg").getImage(); public void paint( Graphics g ) {  g.drawImage(image, 0, 0,null); //之前的图片 Image m = ImgRotate.imageMisro(image, ImgRotate.Left_Right_Reverse); g.drawImage(m, 200, 200, null); //水平翻转的图片  Image mm = ImgRotate.rotateImage(m, 90); //这里只能填90,180,270 g.drawImage(mm, 250, 0, null);   } public Test() { frame = new JFrame();  frame.add(this);  frame.setSize(500,500); frame.setLocationRelativeTo(null); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } public static void main(String[] args)  {  new Test();  }  }