2. import SimpleOpenNI.*; 
3. 
   
4. SimpleOpenNI kinect; 
5. 
   
6. PImage head;
7. 
   
8. 
   
9. PImage resultImage;
10. color trans = color(0, 0, 0, 0);
11. 
    
12. int[] userMap; // declare our images 
13. 
    
14. boolean calibrated;
15. 
    
16. 
    
17. void setup() {
18.   kinect = new SimpleOpenNI(this);
19.   kinect.setMirror(true);
20.   kinect.enableDepth();
21.   kinect.enableUser(SimpleOpenNI.SKEL_PROFILE_ALL);
22. 
    
23.   size(640, 480);
24. 
    
25.   resultImage = new PImage(640, 480, ARGB);
26. 
    
27. 
    
28.   head = loadImage("Head_red.png");
29.   
30.   
31.   /////****
32. 
    
33.   ////
34. 
    
35. }
36. 
    
37. void draw() {
38.   kinect.update();
39. ////
40. 
    
41. 
    
42.   if (!calibrated) {
43.     image(kinect.depthImage(), 0, 0);
44.   }  
45. 
    
46.   IntVector userList = new IntVector();
47.   kinect.getUsers(userList);
48. 
    
49.   if (userList.size() > 0) {
50.     int userId = userList.get(0);
51. 
    
52.     if ( kinect.isTrackingSkeleton(userId)) {
53. 
    
54.       userMap = kinect.getUsersPixels(SimpleOpenNI.USERS_ALL);
55.       for (int i =0; i < userMap.length; i++) {
56.         // if the pixel is part of the user
57.         if (userMap[i] != 0) {
58.           // set the pixel to the color pixel
59.           resultImage.pixels[i] = kinect.depthImage().pixels[i];
60.         }
61.         else {
62.           //set it to the background
63.           resultImage.pixels[i] = trans;
64.         }
65.       }
66.       //update the pixel from the inner array to image
67.       resultImage.updatePixels();
68.       image(resultImage, 0, 0);
69. 
    
70.       drawSkeleton(userId);
71.     }
72. 
    
73.    
74.     PVector headPos = new PVector();
75.     kinect.getJointPositionSkeleton(userId, SimpleOpenNI.SKEL_HEAD, headPos);
76.     kinect.convertRealWorldToProjective(headPos, headPos);
77.     println(headPos.z);
78.     float newImageWidth = map(headPos.z, 500, 2000, head.width, head.width/2);
79.     float newImageHeight = map(headPos.z, 500, 2000, head.width, head.width/2);
80.     image(head, headPos.x - newImageWidth/2 - 25, headPos.y - newImageHeight/2 - 50, newImageWidth, newImageHeight );
81.     
82.  
83.     
84.   }
85.   //c
86. }
87. void drawSkeleton(int userId) {
88.   stroke(0);
89.   strokeWeight(25);
90. 
    
91.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_HEAD, SimpleOpenNI.SKEL_NECK);
92.   //image(head, SimpleOpenNI.SKEL_HEAD.x - head.width/2, SimpleOpenNI.SKEL_HEAD.y - head.height);
93.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_NECK, SimpleOpenNI.SKEL_LEFT_SHOULDER);
94.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_LEFT_SHOULDER, SimpleOpenNI.SKEL_LEFT_ELBOW);
95.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_LEFT_ELBOW, SimpleOpenNI.SKEL_LEFT_HAND);
96.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_NECK, SimpleOpenNI.SKEL_RIGHT_SHOULDER);
97.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_RIGHT_SHOULDER, SimpleOpenNI.SKEL_RIGHT_ELBOW);
98.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_RIGHT_ELBOW, SimpleOpenNI.SKEL_RIGHT_HAND);
99.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_LEFT_SHOULDER, SimpleOpenNI.SKEL_TORSO);
100.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_RIGHT_SHOULDER, SimpleOpenNI.SKEL_TORSO);
101.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_TORSO, SimpleOpenNI.SKEL_LEFT_HIP);
102.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_LEFT_HIP, SimpleOpenNI.SKEL_LEFT_KNEE);
103.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_LEFT_KNEE, SimpleOpenNI.SKEL_LEFT_FOOT);
104.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_TORSO, SimpleOpenNI.SKEL_RIGHT_HIP);
105.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_RIGHT_HIP, SimpleOpenNI.SKEL_RIGHT_KNEE);
106.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_RIGHT_KNEE, SimpleOpenNI.SKEL_RIGHT_FOOT);
107.   kinect.drawLimb(userId, SimpleOpenNI.SKEL_RIGHT_HIP, SimpleOpenNI.SKEL_LEFT_HIP);
108. 
     
109.   noStroke();
110.  fill(0, 255, 0);
111.   /*
112.   drawJoint(userId, SimpleOpenNI.SKEL_HEAD);  
113. 
     
114.    drawJoint(userId, SimpleOpenNI.SKEL_NECK);
115.    drawJoint(userId, SimpleOpenNI.SKEL_LEFT_SHOULDER);
116.    drawJoint(userId, SimpleOpenNI.SKEL_LEFT_ELBOW);
117.    drawJoint(userId, SimpleOpenNI.SKEL_NECK);
118.    drawJoint(userId, SimpleOpenNI.SKEL_RIGHT_SHOULDER);
119.    drawJoint(userId, SimpleOpenNI.SKEL_RIGHT_ELBOW);
120.    drawJoint(userId, SimpleOpenNI.SKEL_TORSO);
121.    drawJoint(userId, SimpleOpenNI.SKEL_LEFT_HIP);
122.    drawJoint(userId, SimpleOpenNI.SKEL_LEFT_KNEE);
123.    drawJoint(userId, SimpleOpenNI.SKEL_RIGHT_HIP);
124.    drawJoint(userId, SimpleOpenNI.SKEL_LEFT_FOOT);
125.    drawJoint(userId, SimpleOpenNI.SKEL_RIGHT_KNEE);
126.    drawJoint(userId, SimpleOpenNI.SKEL_LEFT_HIP);
127.    drawJoint(userId, SimpleOpenNI.SKEL_RIGHT_FOOT);
128.    drawJoint(userId, SimpleOpenNI.SKEL_RIGHT_HAND);
129.    drawJoint(userId, SimpleOpenNI.SKEL_LEFT_HAND);
130.    */
131. }
132. 
     
133. float getJointDistance(int userId, int jointID1, int jointID2) {
134.   PVector joint1 = new PVector();
135.   PVector joint2 = new PVector();
136.   kinect.getJointPositionSkeleton(userId, jointID1, joint1);
137.   kinect.getJointPositionSkeleton(userId, jointID2, joint2);
138.   return PVector.dist(joint1, joint2);
139. } 
140. 
     
141. void drawJoint(int userId, int jointID) {
142.   PVector joint = new PVector();
143.   float confidence = kinect.getJointPositionSkeleton(userId, jointID, joint);
144.   if (confidence < 0.5) {
145.     return;
146.   }
147.   PVector convertedJoint = new PVector();
148.   kinect.convertRealWorldToProjective(joint, convertedJoint);
149.   ellipse(convertedJoint.x, convertedJoint.y, 5, 5);
150. }
151. // user-tracking callbacks! 
152. void onNewUser(int userId) {
153.   println("start pose detection");
154.   kinect.startPoseDetection("Psi", userId);
155. }
156. 
     
157. void onEndCalibration(int userId, boolean successful) {
158.   if (successful) {
159.     println(" User calibrated !!!");
160.     kinect.startTrackingSkeleton(userId);
161.     calibrated = true;
162.   }
163.   else {
164.     println(" Failed to calibrate user !!!");
165.     kinect.startPoseDetection("Psi", userId);
166.   }
167. }
168. 
     
169. void onStartPose(String pose, int userId) {
170.   println("Started pose for user");
171.   kinect.stopPoseDetection(userId);
172.   kinect.requestCalibrationSkeleton(userId, true);
173. }

Hi everyone, 

I'm trying to learn about skeleton tracking, and as you can see from the picture above, I wonder how can I fix this to make the picture and the skeleton updated rather than being so. I'd be much appreciated if any of you could help me with this.