JAVA比较两张图片相似度的方法

本文实例讲述了java比较两张图片相似度的方法。分享给大家供大家参考。具体如下：

摘要：

importjava.awt.image.bufferedimage;
importjava.io.file;
importjavax.imageio.imageio;
/***比较两张图片的相似度*@authorguihua**/publicclassbmploader{//改变成二进制码
publicstaticstring[][]getpx(stringargs){int[]rgb=newint[3];
filefile=newfile(args);
bufferedimagebi=null;
try

主要代码如下：

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");
  }
}

希望本文所述对大家的java程序设计有所帮助。