- 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");
- }
- }