First thing's first, I am a very inexperienced programmer, so apologies if any of this is a stupid question! :)

I have been trying unsucessfully to get openCV itself to work in processing with Windows 7. Instead, I found the blobtracker library, and was able to find a blob tracking example. I think I added live capture into it without much trouble, and it works, sort of.

What I need: A program that tracks one person (the closest to the camera) in a space and follows where they go and how fast they move. I guess without openCV it might be hard to do face detection? I am not sure, but that would be ideal. Is there a way to make it work with the blobtracker library?

Otherwise, how would I modify the following code to track people coming up to the project in the space and narrow it down to one person?

2. /* 
3.  * Blobscanner Processing library 
4.  * by Antonio Molinaro - 02/01/2011.
5.  * For each blob in the image computes 
6.  * and prints the center of mass  
7.  * coordinates x y to the console
8.  * and to the screeen. 
9.  *   
10.  * 
11.  */
12. import Blobscanner.*;
13. import processing.video.*;
14. 
    
15. Capture cam;
16. Detector bd;
17. 
    
18. PImage img;
19. PFont f = createFont("", 10);
20. 
    
21. void setup(){
22.   size(640, 480);
23. 
    
24.   String[] cameras = Capture.list();
25.   
26.   if (cameras.length == 0) {
27.     println("There are no cameras available for capture.");
28.     exit();
29.   } else {
30.     println("Available cameras:");
31.     for (int i = 0; i < cameras.length; i++) {
32.       println(cameras[i]);
33.     }
34.     
35.     cam = new Capture(this, 320, 240, cameras[0]);
36.     cam.start();
37.     
38.     // You can get the list of resolutions (width x height x fps)  
39.     // supported capture device by calling the resolutions()
40.     // method. It must be called after creating the capture 
41.     // object. 
42.     Resolution[] res = cam.resolutions();
43.     println("Supported resolutions:");
44.     for (int i = 0; i < res.length; i++) { 
45.       println(res[i].width + "x" + res[i].height + ", " + 
46.               res[i].fps + " fps (" + res[i].fpsString +")");  
47.     }        
48.   }  
49. //img = loadImage("blobs.jpg");
50. cam.filter(THRESHOLD);
51. textFont(f, 10);
52. 
    
53. bd = new Detector( this, 0, 0, cam.width, cam.height, 255 );
54.  
55. }
56. 
    
57. void draw(){
58.  if (cam.available() == true) {
59.     cam.read();
60.     image(cam, 0, 0);
61.  }
62. 
    
63. bd.imageFindBlobs(cam);
64. 
    
65. //This call is indispensable for nearly all the other methods
66. //(please check javadoc).
67. bd.loadBlobsFeatures();
68. 
    
69. //This methods needs to be called before to call 
70. //findCentroids(booleaan, boolean) methods.
71. bd.weightBlobs(false);
72. 
    
73. //Computes the blob center of mass. If the first argument is true, 
74. //prints the center of mass coordinates x y to the console. If the 
75. //second argument is true, draws a point at the center of mass coordinates.
76. bd.findCentroids(false, false);
77.  
78. 
    
79. stroke(255, 100, 0); 
80. 
    
81. //For each blob in the image..
82. for(int i = 0; i < bd.getBlobsNumber(); i++) {
83.   
84. stroke(0, 255, 0);
85. strokeWeight(5);
86.   
87. //...computes and prints the centroid coordinates x y to the console...
88. println("BLOB " + (i+1) + " CENTROID X COORDINATE IS " + bd.getCentroidX(i));
89. println("BLOB " + (i+1) + " CENTROID Y COORDINATE IS " + bd.getCentroidY(i));
90. println("\n");
91. 
    
92. //...and draws a point to their location. 
93. point(bd.getCentroidX(i), bd.getCentroidY(i));
94. 
    
95. //Write coordinate to the screen.
96. fill(255, 0, 0);
97. text("x-> " + bd.getCentroidX(i) + "\n" + "y-> " + bd.getCentroidY(i), bd.getCentroidX(i), bd.getCentroidY(i)-7);
98. }
99.  
100. }
101.   

In theory, I will be having Processing interpreting the movements of the user and sending them to Arduino to execute some code.

Thanks in advance!!!