I am trying to make this code, which identifies faces right now, identify features as well: eyes, mouth, nose. How 

can I modify this code to do that? I'm also interested in identification, or creating profiles so that one face is known from another i.e. this is Peter, that is Susan. I hope to also get the names to hover above the faces. Any help would be greatly appreciated!!! 

All the best

1. 
   
2. 
   
3. import hypermedia.video.*;
4. import java.awt.Rectangle;
5. import processing.serial.*;        
6. 
   
7. int gx = 15;
8. int gy = 35;
9. int spos=90;
10. 
    
11. 
    
12. 
    
13. Serial port; 
14. 
    
15. OpenCV opencv;
16. 
    
17. // contrast/brightness values
18. int contrast_value    = 0;
19. int brightness_value  = 0;
20. 
    
21. void setup() {
22. 
    
23.     size( 640, 480 );
24. 
    
25.     opencv = new OpenCV( this );
26.     opencv.capture( width, height );                   // open video stream
27.     opencv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT );  // load detection description, here-> front face detection : "haarcascade_frontalface_alt.xml"
28. }
29. 
    
30. 
    
31. public void stop() {
32.     opencv.stop();
33.     super.stop();
34. }
35. 
    
36. void draw() {
37. 
    
38.     // grab a new frame
39.     // and convert to gray
40.     opencv.read();
41.     opencv.convert( RGB );
42.     opencv.contrast( contrast_value );
43.     opencv.brightness( brightness_value );
44. 
    
45.     // proceed detection
46.     Rectangle[] faces = opencv.detect( 1.2, 2, OpenCV.HAAR_DO_CANNY_PRUNING, 40, 40 );
47. 
    
48.     // display the image
49.     image( opencv.image(), 0, 0 );
50. 
    
51.     // draw face area(s)
52.     noFill();
53.     stroke(255,0,0);
54.     for( int i=0; i<faces.length; i++ ) {
55.         rect( faces[i].x, faces[i].y, faces[i].width, faces[i].height ); 
56. 
    
57.   }
58. 
    
59. 
    
60. 
    
61. }
62. 
    
63. 
    
64. 
    
65.