JAVA 比较两张图片的相似度的代码

import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
/**

比较两张图片的相似度
@author Guihua
/
public class BMPLoader {
 // 改变成二进制码
 public static String[][] getPX(String args) {

 int[] rgb = new int[3];

 File file = new File(args);
 BufferedImage bi = null;
 try {
     bi = ImageIO.read(file);
 } catch (Exception e) {
     e.printStackTrace();
 }

 int width = bi.getWidth();
 int height = bi.getHeight();
 int minx = bi.getMinX();
 int miny = bi.getMinY();
 String[][] list = new String[width][height];
 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);
         list[i][j] = rgb[0] + "," + rgb[1] + "," + rgb[2];

     }
 }
 return list;


}
public static void compareImage(String imgPath1, String imgPath2){

 String[] images = {imgPath1, imgPath2};
 if (images.length == 0) {
     System.out.println("Usage >java BMPLoader ImageFile.bmp");
     System.exit(0);
 }

 // 分析图片相似度 begin
 String[][] list1 = getPX(images[0]);
 String[][] list2 = getPX(images[1]);
 int xiangsi = 0;
 int busi = 0;
 int i = 0, j = 0;
 for (String[] strings : list1) {
     if ((i + 1) == list1.length) {
         continue;
     }
     for (int m=0; m<strings.length; m++) {
         try {
             String[] value1 = list1[i][j].toString().split(",");
             String[] value2 = list2[i][j].toString().split(",");
             int k = 0;
             for (int n=0; n<value2.length; n++) {
                 if (Math.abs(Integer.parseInt(value1[k]) - Integer.parseInt(value2[k])) < 5) {
                     xiangsi++;
                 } else {
                     busi++;
                 }
             }
         } catch (RuntimeException e) {
             continue;
         }
         j++;
     }
     i++;
 }

 list1 = getPX(images[1]);
 list2 = getPX(images[0]);
 i = 0;
 j = 0;
 for (String[] strings : list1) {
     if ((i + 1) == list1.length) {
         continue;
     }
     for (int m=0; m<strings.length; m++) {
         try {
             String[] value1 = list1[i][j].toString().split(",");
             String[] value2 = list2[i][j].toString().split(",");
             int k = 0;
             for (int n=0; n<value2.length; n++) {
                 if (Math.abs(Integer.parseInt(value1[k]) - Integer.parseInt(value2[k])) < 5) {
                     xiangsi++;
                 } else {
                     busi++;
                 }
             }
         } catch (RuntimeException e) {
             continue;
         }
         j++;
     }
     i++;
 }
 String baifen = "";
 try {
     baifen = ((Double.parseDouble(xiangsi + "") / Double.parseDouble((busi + xiangsi) + "")) + "");
     baifen = baifen.substring(baifen.indexOf(".") + 1, baifen.indexOf(".") + 3);
 } catch (Exception e) {
     baifen = "0";
 }
 if (baifen.length() <= 0) {
     baifen = "0";
 }
 if(busi == 0){
     baifen="100";
 }

 System.out.println("相似像素数量：" + xiangsi + " 不相似像素数量：" + busi + " 相似率：" + Integer.parseInt(baifen) + "%");


}
public static void main(String[] args){

 BMPLoader.compareImage("E:\\12.bmp", "E:\\1.bmp");

}
}
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