JAVA

import java.io.File;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
public class test {
 public static void main(String args[]) {
  try {
   // 讀取第一張圖片
   File fileOne = new File("1.jpg");
   BufferedImage ImageOne = ImageIO.read(fileOne);
   int width = ImageOne.getWidth();// 圖片寬度
   int height = ImageOne.getHeight();// 圖片高度
   // 從圖片中讀取RGB
    int[] ImageArrayOne = new int[width  height];
    ImageArrayOne = ImageOne.getRGB(0, 0, width, height, ImageArrayOne,0, width);
   // 對第二張圖片做相同的處理
   File fileTwo = new File("2.jpg");
   BufferedImage ImageTwo = ImageIO.read(fileTwo);
   int[] ImageArrayTwo = new int[width  height];
   ImageArrayTwo = ImageTwo.getRGB(0, 0, width, height, ImageArrayTwo,0, width);
   // 生成新圖片
   // BufferedImage ImageNew = new BufferedImage(width  2, height,
   // BufferedImage.TYPE_INT_RGB);
   BufferedImage ImageNew = new BufferedImage(width, height2,BufferedImage.TYPE_INT_RGB);
   ImageNew.setRGB(0, 0, width, height, ImageArrayOne, 0, width);// 設置左半部分的RGB
   ImageNew.setRGB(0, height, width, height, ImageArrayTwo, 0, width);// 設置右半部分的RGB
   File outFile = new File("out.jpg");
   ImageIO.write(ImageNew, "jpg", outFile);// 寫圖片
   }catch (Exception e) {
      e.printStackTrace();
   }
  }
/**合并多張圖片


Merge all pics in one
#############
# pic1 #
#############
# pic2 #
#############
# pic3 #
#############
*
@param pics
@param dst_pic
@return
*/
public static boolean merge(String[] pics, String dst_pic, String type) {
int len = pics.length;
if (len < 1) {
System.out.println("pics len < 1");
return false;
}
File[] src = new File[len];
BufferedImage[] images = new BufferedImage[len];
int[][] ImageArrays = new int[len][];
for (int i = 0; i < len; i++) {
try {
 src[i] = new File(pics[i]);
 images[i] = ImageIO.read(src[i]);
} catch (Exception e) {
  e.printStackTrace();
  return false;
}
int width = images[i].getWidth();
int height = images[i].getHeight();
ImageArrays[i] = new int[width * height];// 從圖片中讀取RGB
ImageArrays[i] = images[i].getRGB(0, 0, width, height,
ImageArrays[i], 0, width);
}
int dst_height = 0;
for (int i = 0; i < images.length; i++)
dst_height += images[i].getHeight();
if (dst_height < 1) {
System.out.println("dst_height < 1");
return false;
}
// 生成新圖片
try {
int dst_width = images[0].getWidth();
BufferedImage ImageNew = new BufferedImage(images[0].getWidth(),dst_height, BufferedImage.TYPE_INT_RGB);
int height_i = 0;
for (int i = 0; i < images.length; i++) {
ImageNew.setRGB(0, height_i, dst_width, images[i].getHeight(),ImageArrays[i], 0, dst_width);
height_i += images[i].getHeight();
}
File outFile = new File(dst_pic);
ImageIO.write(ImageNew, type, outFile);// 寫圖片
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
}</pre>