Java 照片对比功能的实现

package com.function;

import java.awt.image.BufferedImage;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.*;
import javax.imageio.ImageIO;

/*
 * 这个是一个照片比对功能实现类
 */
public class Tools_PhotoMatching {
 public int mactching(String contrast_photo ,String test_photo) {
  int contras_rgb[] = new int[3];
  int test_rgb[] = new int[3];
  int k = 0;
  File contrastfile = new File(contrast_photo); //对比照片路径
  File testfile = new File(test_photo); //测试照片路径
  BufferedImage contrasphoto = null;
  BufferedImage testphoto = null;
  try {
   contrasphoto = ImageIO.read(contrastfile);
   testphoto = ImageIO.read(testfile);
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  int contraswidth = contrasphoto.getWidth();
  int contrasheight = contrasphoto.getHeight();  
  int testwidth = testphoto.getWidth();
  int testheight = testphoto.getHeight(); 
  //File file = new File("C:\\Users\\prize\\Desktop\\TOOLS\\DCIM\\Camera\\log.txt");
  //File file1 = new File("C:\\Users\\prize\\Desktop\\TOOLS\\DCIM\\Camera\\log1.txt");
  try {
   //FileWriter fileWriter = new FileWriter(file);
   //FileWriter fileWriter1 = new FileWriter(file1);
   //BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
   //BufferedWriter bufferedWriter2 = new BufferedWriter(fileWriter1);  
  for (int i = 0; i < testwidth; i++) {
   for (int j = 0; j < testheight; j++) {    
    //StringBuffer astringBuffer1 = new StringBuffer();
    //StringBuffer bstringBuffer1 = new StringBuffer();    
    int pixel1 = contrasphoto.getRGB(i, j);
    int pixle2= testphoto.getRGB(i, j);
    contras_rgb[0] = (pixel1 & 0xff0000) >> 16; //将值转化成16进制
    contras_rgb[1] = (pixel1 & 0xff00) >> 8; 
    contras_rgb[2] = (pixel1 & 0xff);    
    //astringBuffer1.append(i+"行"+j+"列 R="+contras_rgb[0]+"G="+contras_rgb[1]+"B="+contras_rgb[2] );
    //bufferedWriter.write(astringBuffer1.toString());
    //bufferedWriter.newLine();       
    test_rgb[0] = (pixle2 & 0xff0000) >> 16; 
    test_rgb[1] = (pixle2 & 0xff00) >> 8; 
    test_rgb[2] = (pixle2 & 0xff);
    //bstringBuffer1.append(i+"行"+j+"列 R="+test_rgb[0]+"G="+test_rgb[1]+"B="+test_rgb[2]);    
    //bufferedWriter2.write(bstringBuffer1.toString());
    //bufferedWriter2.newLine();    
    int Difference_R = Math.abs(contras_rgb[0]-test_rgb[0]); //相减并且求绝对值
    int Difference_G= Math.abs(contras_rgb[1]-test_rgb[1]);
    int Difference_B= Math.abs(contras_rgb[2]-test_rgb[2]);
    //System.out.println("第"+j+"次："+Math.abs(Difference));    
    final int R = 35; //35
    final int L = 130;
    int Q = Difference_R+Difference_G+Difference_B;
    if (Difference_R > R && Difference_G > R && Q>L) { //判断每个值的浮动不超过35   
     k++;
    }else if (Difference_G >R && Difference_B>R && Q>L) {
     k++;   
    }else if (Difference_R > R && Difference_B>R && Q>L) {
     k++;
     
    }         
   }
   
  }
  //bufferedWriter.close();
  //bufferedWriter2.close();
  //fileWriter.close();
  //fileWriter1.close();
  
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }  
  return k;  
 }

}