比较两张图片相似度-java源码实现

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("D:\\11.bmp", "E:\\12.bmp");
	BMPLoader.compareImage("C:\\Users\\Duenan\\Desktop\\testvideo\\test\\image_010.png", "C:\\Users\\Duenan\\Desktop\\testvideo\\test\\image_010.png");
}

}