package 脚本学习;
 import java.awt.image.BufferedImage;
 import javax.imageio.ImageIO;
 import java.io.*;
 public class getrgb{
 public static void main(String args[]) throws IOException{
     int[] rgb = new int[3];
     File file = new  File("1.jpg");
     BufferedImage bi=null;
     bi = ImageIO.read(file);
     int width=bi.getWidth();
     int height=bi.getHeight();
     int minx=bi.getMinX();
     int miny=bi.getMinY();
      System.out.println("width="+width+",height="+height+".");
      System.out.println("minx="+minx+",miniy="+miny+".");
     for(int i=minx;i<width;i++) {
         for(int j=miny;j<height;j++)
         {
             int pixel=bi.getRGB(i,j);
             rgb[0] = (pixel &  0xff0000) >> 16;
             rgb[1] = (pixel &  0xff00) >> 8;
             rgb[2] = (pixel &  0xff);
              System.out.println("i="+i+",j="+j+":("+rgb[0]+","+rgb[1]+","+rgb[2]+")");
             }
         }
 }
 }