package tuxiang;
import java.applet.;
 import java.awt.;
 import java.awt.image.BufferedImage;
 import java.io.;
 import javax.imageio.;public class huatu extends Applet{
 int ku=0,ku1=0,area7[];
 String kus [],namelj;
 double jx;
 /int i=1;
 Color c=new Color(0,0,100);
 public void init(){
 setBackground©;
 }
 public void paint(Graphics g){
 i = i+8;
 if(i>160)
 i=1;
 g.setColor(Color.red);
 g.fillRect(i,10,20,20);
 g.drawString(“我正学习update()方法”,100,100);
 try{
 Thread.sleep(100);
 }
 catch(InterruptedException e){}
 repaint();
 }
 public void update(Graphics g){
 g.clearRect(i,10,200,100);//不清除"我正在学习update()方法"
 paint(g);
 }/
 Color c=new Color(0,0,100);
 public void init(){
 setBackground©;
 }
 public void paint(Graphics g){
 String lj="",name = null;
 ku=0;
 ku1=0;
 lj=getImagePixel(“F:\计算机图形学\ku-sb\tld1.jpg”);
 System.out.println(lj);
 File file = new File(“F:\计算机图形学\ku-sb\tld1.jpg”);
 BufferedImage bi = null;
 try {
 bi = ImageIO.read(file);
 } catch (IOException e) {
e.printStackTrace();
 } 
 g.drawImage(bi,0,0,300,400, null);
 File file1 = new File(lj);
 BufferedImage bi1 = null;
  try {
     bi1 = ImageIO.read(file1);
 } catch (IOException e) {
 
     e.printStackTrace();
 } 
 g.drawImage(bi1,300,0,300,400, null);
 //防止文件建立或读取失败,用catch捕捉错误并打印,也可以throw;
 //不关闭文件会导致资源的泄露,读写文件都同理
 try (//FileReader reader = new FileReader(namelj);
		 BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream(namelj), "UTF-8")); // 建立一个对象,它把文件内容转成计算机能读懂的语言
 ) { 
              name = br.readLine();
              System.out.println(name);
    } catch (IOException e) {
     e.printStackTrace();
 }
 if (jx>1330000)
	 name="不认识此人 ,"+"但与"+name+"最相似!";
 else
 {}
 g.setColor(Color.red);
 g.setFont(new Font("宋体", Font.BOLD, 50));
 g.drawString(name,0,500);
 
 
 }
public String getImagePixel(String image) {
 String pathname = “F:\计算机图形学\ku1\ku.txt”;
 String line=“10”;
 //防止文件建立或读取失败,用catch捕捉错误并打印,也可以throw;
 //不关闭文件会导致资源的泄露,读写文件都同理
 try (FileReader reader = new FileReader(pathname);
 BufferedReader br = new BufferedReader(reader) // 建立一个对象,它把文件内容转成计算机能读懂的语言
 ) {
 line = br.readLine();
 System.out.println(line);
 } catch (IOException e) {
 e.printStackTrace();
 }
 ku=Integer.parseInt(line);
 kus=new String [ku];
 File file1=new File(“F:\计算机图形学\ku”);
 getDirectory(file1);
int i;
	
   int[] rgb = new int[3];
   File file = new File(image);
  BufferedImage bi = null;
   try {
      bi = ImageIO.read(file);
  } catch (IOException e) {
  
      e.printStackTrace();
  }
  int width = bi.getWidth();
  int height = bi.getHeight();
  int minX = bi.getMinX();
  int minY = bi.getMinY();
  for(int x = minX; x < width; x++) {
 	 for(int y = minY; y < height; y++){
          //获取包含这个像素的颜色信息的值, int型
          int pixel = bi.getRGB(x, y);
          //从pixel中获取rgb的值
          rgb[0] = (pixel & 0xff0000) >> 16; //r
          rgb[1] = (pixel & 0xff00) >> 8; //g
         rgb[2] = (pixel & 0xff); //b
 	 }
  }
         //System.out.println("x:"+x+"y:"+y);
         //System.out.println("r:"+rgb[0]+"g:"+rgb[1]+"b:"+rgb[2]);
  int a=(width-minX),b=(height-minY);
  int area1[] = new int [400];
  int area2[] = new int [400];
  int area3[] = new int [400];
  int area4[] = new int [400];
  int area5[] = new int [400];
  int area6[] = new int [2000];
  area7= new int [2000];
  int pixel;
  i=0;
  int r=0;
  for(int x = (a/4)-10; x < (a/4)+10; x++) {
 	 for(int y = (b/4)-10; y < (b/4)+10; y++){
 		 pixel = bi.getRGB(x, y);
          //从pixel中获取rgb的值
          rgb[0] = (pixel & 0xff0000) >> 16; //r
          rgb[1] = (pixel & 0xff00) >> 8; //g
         rgb[2] = (pixel & 0xff); //b
 	r=(rgb[0]+rgb[1]+rgb[2])/3;	 
 	area1[i]=fft2(x, y, r, 20, 20);
 	i++;
 	 }
 }
  i=0;
  for(int x = (a/4)-10; x < (a/4)+10; x++) {
 	 for(int y = (b*3/4)-10; y < (b*3/4)+10; y++){
 		 pixel = bi.getRGB(x, y);
          //从pixel中获取rgb的值
          rgb[0] = (pixel & 0xff0000) >> 16; //r
          rgb[1] = (pixel & 0xff00) >> 8; //g
         rgb[2] = (pixel & 0xff); //b
 	r=(rgb[0]+rgb[1]+rgb[2])/3;	 
 	area2[i]=fft2(x, y, r, 20, 20);
 	i++;
 	 }
 }
  i=0;
  for(int x = (a*3/4)-10; x < (a*3/4)+10; x++) {
 	 for(int y = (b/4)-10; y < (b/4)+10; y++){
 		 pixel = bi.getRGB(x, y);
          //从pixel中获取rgb的值
          rgb[0] = (pixel & 0xff0000) >> 16; //r
          rgb[1] = (pixel & 0xff00) >> 8; //g
         rgb[2] = (pixel & 0xff); //b
 	r=(rgb[0]+rgb[1]+rgb[2])/3;	 
 	area3[i]=fft2(x, y, r, 20, 20);
 	i++;
 	 }
 }
  i=0;
  for(int x = (a*3/4)-10; x < (a*3/4)+10; x++) {
 	 for(int y = (b*3/4)-10; y < (b*3/4)+10; y++){
 		 pixel = bi.getRGB(x, y);
          //从pixel中获取rgb的值
          rgb[0] = (pixel & 0xff0000) >> 16; //r
          rgb[1] = (pixel & 0xff00) >> 8; //g
         rgb[2] = (pixel & 0xff); //b
 	r=(rgb[0]+rgb[1]+rgb[2])/3;	 
 	area4[i]=fft2(x, y, r, 20, 20);
 	i++;
 	 }
 }
  i=0;
  for(int x = (a/2)-10; x < (a/2)+10; x++) {
 	 for(int y = (b/2)-10; y < (b/2)+10; y++){
 		  pixel = bi.getRGB(x, y);
          //从pixel中获取rgb的值
          rgb[0] = (pixel & 0xff0000) >> 16; //r
          rgb[1] = (pixel & 0xff00) >> 8; //g
         rgb[2] = (pixel & 0xff); //b
 	r=(rgb[0]+rgb[1]+rgb[2])/3;	 
 	area5[i]=fft2(x, y, r, 20, 20);
 	i++;
 	 }
 }
  for (i=0;i<400;i++)
  {
  	area6[i]=area1[i];	
  	System.out.println("pic0"+":"+area6[i]);
  	
  }
  for (i=400;i<800;i++)
  {
  	area6[i]=area2[i-400];	
  	System.out.println("pic0"+":"+area6[i]);
  	
  }
  for (i=800;i<1200;i++)
  {
  	area6[i]=area3[i-800];	
  	System.out.println("pic0"+":"+area6[i]);
  	
  }
  for (i=1200;i<1600;i++)
  {
  	area6[i]=area4[i-1200];	
  	System.out.println("pic0"+":"+area6[i]);
  	
  }
  for (i=1600;i<2000;i++)
  {
  	area6[i]=area5[i-1600];	
  	System.out.println("pic0"+":"+area6[i]);
  	
  }
  for (i=0;i<2000;i++)
  area7[i]=area6[i];
	double xs []= new double [ku];
    for (i=0;i<ku;i++)
            {
    	      xs[i]=bl(kus[i],i+1);
            }
    int k=0;
    double k1=xs[0];
     for (i=0;i<ku;i++)
     {
       if (k1>xs[i])
       {
    	   k1=xs[i];
    	   k=i;
       }
     }
     jx=k1;
     String s="",s1="";
     s="F:"+"\\\\"+"计算机图形学"+"\\\\"+"ku"+"\\\\"+"p"+k+".jpg";
     s1="F:"+"\\\\"+"计算机图形学"+"\\\\"+"ku-t"+"\\\\"+"p"+k+".txt";
     namelj=s1;
     for (i=0;i<ku;i++)
     { System.out.println("ejldjl  "+i+":     "+xs[i]);}
    return s;
    
            
        /* try {
             OutputStream ops = new FileOutputStream(new File("F:\\计算机图形学\\huaduo1.jpg"));
             ImageIO.write(bi1, "jpg", ops);         
         } catch (IOException e) {
             e.printStackTrace();
         }
         System.out.println("图片已存入。");*/
}
public void getDirectory (File file) {
File flist[] = file.listFiles();
 if (flist == null || flist.length == 0) 
 {
	 System.out.println("error\r\n"); 
 }
 for (File f : flist) {
   if (f.isDirectory()) {
     //这里将列出所有的文件夹
     kus[ku1]=f.getAbsolutePath(); 
     ku1++;
     getDirectory(f);
   } else {
     //这里将列出所有的文件
	   kus[ku1]=f.getAbsolutePath(); 
	     ku1++;
   }
 }
}
 public double bl (String image,int t)
 {
 int[] rgb = new int[3];
 File file = new File(image);
 BufferedImage bi = null;
 try {
 bi = ImageIO.read(file);
 } catch (IOException e) {
e.printStackTrace();
}
int width = bi.getWidth();
int height = bi.getHeight();
int minX = bi.getMinX();
int minY = bi.getMinY();
for(int x = minX; x < width; x++) {
 for(int y = minY; y < height; y++){
        //获取包含这个像素的颜色信息的值, int型
        int pixel = bi.getRGB(x, y);
        //从pixel中获取rgb的值
        rgb[0] = (pixel & 0xff0000) >> 16; //r
        rgb[1] = (pixel & 0xff00) >> 8; //g
       rgb[2] = (pixel & 0xff); //b
 }
}
       //System.out.println("x:"+x+"y:"+y);
       //System.out.println("r:"+rgb[0]+"g:"+rgb[1]+"b:"+rgb[2]);
int a=(width-minX),b=(height-minY);
int area1[] = new int [400];
int area2[] = new int [400];
int area3[] = new int [400];
int area4[] = new int [400];
int area5[] = new int [400];
int area6[] = new int [2000];
int pixel;
int i=0,r=0;
for(int x = (a/4)-10; x < (a/4)+10; x++) {
 for(int y = (b/4)-10; y < (b/4)+10; y++){
	 pixel = bi.getRGB(x, y);
        //从pixel中获取rgb的值
        rgb[0] = (pixel & 0xff0000) >> 16; //r
        rgb[1] = (pixel & 0xff00) >> 8; //g
       rgb[2] = (pixel & 0xff); //b
r=(rgb[0]+rgb[1]+rgb[2])/3;	 
area1[i]=fft2(x, y, r, 20, 20);
i++;
 }
}
 i=0;
 for(int x = (a/4)-10; x < (a/4)+10; x++) {
 for(int y = (b3/4)-10; y < (b3/4)+10; y++){
 pixel = bi.getRGB(x, y);
 //从pixel中获取rgb的值
 rgb[0] = (pixel & 0xff0000) >> 16; //r
 rgb[1] = (pixel & 0xff00) >> 8; //g
 rgb[2] = (pixel & 0xff); //b
 r=(rgb[0]+rgb[1]+rgb[2])/3; 
 area2[i]=fft2(x, y, r, 20, 20);
 i++;
 }
 }
 i=0;
 for(int x = (a3/4)-10; x < (a3/4)+10; x++) {
 for(int y = (b/4)-10; y < (b/4)+10; y++){
 pixel = bi.getRGB(x, y);
 //从pixel中获取rgb的值
 rgb[0] = (pixel & 0xff0000) >> 16; //r
 rgb[1] = (pixel & 0xff00) >> 8; //g
 rgb[2] = (pixel & 0xff); //b
 r=(rgb[0]+rgb[1]+rgb[2])/3; 
 area3[i]=fft2(x, y, r, 20, 20);
 i++;
 }
 }
 i=0;
 for(int x = (a3/4)-10; x < (a3/4)+10; x++) {
 for(int y = (b3/4)-10; y < (b3/4)+10; y++){
 pixel = bi.getRGB(x, y);
 //从pixel中获取rgb的值
 rgb[0] = (pixel & 0xff0000) >> 16; //r
 rgb[1] = (pixel & 0xff00) >> 8; //g
 rgb[2] = (pixel & 0xff); //b
 r=(rgb[0]+rgb[1]+rgb[2])/3; 
 area4[i]=fft2(x, y, r, 20, 20);
 i++;
 }
 }
 i=0;
 for(int x = (a/2)-10; x < (a/2)+10; x++) {
 for(int y = (b/2)-10; y < (b/2)+10; y++){
 pixel = bi.getRGB(x, y);
 //从pixel中获取rgb的值
 rgb[0] = (pixel & 0xff0000) >> 16; //r
 rgb[1] = (pixel & 0xff00) >> 8; //g
 rgb[2] = (pixel & 0xff); //b
 r=(rgb[0]+rgb[1]+rgb[2])/3; 
 area5[i]=fft2(x, y, r, 20, 20);
 i++;
 }
 }
 for (i=0;i<400;i++)
 {
 area6[i]=area1[i]; 
 System.out.println(“pic”+t+":"+area6[i]);}
for (i=400;i<800;i++)
{
	area6[i]=area2[i-400];	
	System.out.println("pic"+t+":"+area6[i]);
	
}
for (i=800;i<1200;i++)
{
	area6[i]=area3[i-800];	
	System.out.println("pic"+t+":"+area6[i]);
	
}
for (i=1200;i<1600;i++)
{
	area6[i]=area4[i-1200];	
	System.out.println("pic"+t+":"+area6[i]);
	
}
for (i=1600;i<2000;i++)
{
	area6[i]=area5[i-1600];	
	System.out.println("pic"+t+":"+area6[i]);
	
}


double xs=0;
for (i=0;i<2000;i++)
{xs+=Math.pow((area6[i]-area7[i]),2);}
xs=Math.sqrt(xs);
//System.out.println("xsd"+t+":"+xs);
}
for (i=400;i<800;i++)
{
	area6[i]=area2[i-400];	
	System.out.println("pic"+t+":"+area6[i]);
	
}
for (i=800;i<1200;i++)
{
	area6[i]=area3[i-800];	
	System.out.println("pic"+t+":"+area6[i]);
	
}
for (i=1200;i<1600;i++)
{
	area6[i]=area4[i-1200];	
	System.out.println("pic"+t+":"+area6[i]);
	
}
for (i=1600;i<2000;i++)
{
	area6[i]=area5[i-1600];	
	System.out.println("pic"+t+":"+area6[i]);
	
}


double xs=0;
for (i=0;i<2000;i++)
{xs+=Math.pow((area6[i]-area7[i]),2);}
xs=Math.sqrt(xs);
//System.out.println("xsd"+t+":"+xs);
return xs;
 }public int fft2 (int x,int y,int h,int sizex,int sizey)
 {
 int i=0,j=0,fi=0;
 double f=0,R=0,I=0;
 for (i=0;i<sizex;i++)
 {
 for (j=0;j<sizey;j++)
 {
 R+=hMath.cos(-2Math.PI*((Math.pow(x, 2)/sizex)+(Math.pow(y, 2)/sizey))); 
 }
 }
 for (i=0;i<sizex;i++)
 {
 for (j=0;j<sizey;j++)
 {
 I+=hMath.sin(-2Math.PI*((Math.pow(x, 2)/sizex)+(Math.pow(y, 2)/sizey))); 
 }
 }
 f=Math.sqrt(Math.pow(R, 2)+Math.pow(I, 2));
 fi=(int)(f+0.5);
 return fi;
 }}