Hello.

I have a problem.

I run code and it's ok, but I don't have the light and sting letter. I also see video camera me.
The problem. I want to used the light and sting letter.

Where is mistake?
How can I do?

1. /* Examples
2. Video --> AsciiVideo
3. Topics --> Image Processing --> Brightness
4. */
5. //Brightness AsciiVideo
6. import processing.video.*;
7. Capture video;
8. boolean cheatScreen;
9. // All ASCII characters, sorted according to their visual density
10. String letterOrder =
11.  "0";
12.  
13. char[] letters;
14. float[] bright;
15. char[] chars;
16. PFont font;
17. float fontSize = 1.5;
18. void setup() {
19.   size(640, 480, P2D);
20.   // Or run full screen, more fun! Use with Sketch -> Present
21.   //size(screen.width, screen.height, OPENGL);
22.   // Uses the default video input, see the reference if this causes an error
23.   video = new Capture(this, width, height, 15);
24.   int count = video.width * video.height;
25.   font = loadFont("UniversLTStd-Light-48.vlw");
26.   // for the 256 levels of brightness, distribute the letters across
27.   // the an array of 256 elements to use for the lookup
28.   letters = new char[256];
29.   for (int i = 0; i < 256; i++) {
30.     int index = int(map(i, 0, 256, 0, letterOrder.length()));
31.     letters[i] = letterOrder.charAt(index);
32.   }
33.   // current characters for each position in the video
34.   chars = new char[count];
35.   // current brightness for each point
36.   bright = new float[count];
37.   for (int i = 0; i < count; i++) {
38.     // set each brightness at the midpoint to start
39.     bright[i] = 128;
40.   }
41.   video.loadPixels();
42.   loadPixels();
43. }
44. void draw() {
45.     
46.     video.read();
47.     background(0);
48.     
49.     pushMatrix();    
50.     
51.     float hgap = width / float(video.width);
52.     float vgap = height / float(video.height);
53.     scale (max(hgap, vgap) * fontSize);
54.     textFont(font, fontSize);
55.     
56.     int index = 0;
57.     
58.     for (int y = 1; y < video.height; y++) {
59.       
60.       translate(0, 1.0 / fontSize);
61.       
62.       pushMatrix();
63.       for (int x = 0; x < video.width; x++) {
64.         int pixelColor = video.pixels[index];
65.         
66.         float r1 = (pixelColor >> 16) & 0xff;
67.         float g2 = (pixelColor >> 8) & 0xff;
68.         float b3 = pixelColor & 0xff;
69.         
70.         float pixelBright = max(r1, g2, b3);
71.         
72.         float diff = pixelBright - bright[index];
73.         bright[index] += diff *0.1;
74.         
75.         fill(pixelColor);
76.         int num = int(bright[index]);
77.         text(letters[num], 0, 0);
78.         
79.         index++;
80.         
81.         translate(1.0 / fontSize, 0);
82.         
83.         int loc = x + y*video.width;
84.         //float r1, g2, b3;
85.         
86.         r1 = red (video.pixels[loc]);
87.       
88.         float maxdist = 50;//dist(0,0,width,height);
89.         float d = dist(x,y,mouseX,mouseY);
90.         float adjustbrightness = 255*(maxdist-d)/maxdist;
91.         r1 += adjustbrightness;
92.         //g5 += adjustbrightness;
93.         //b6 += adjustbrightness;
94.         
95.         // Constrain RGB to make sure they are within 0-255 color range
96.         //r4 = constrain(r4,0,255);
97.         //g5 = constrain(g5,0,255);
98.         //b6 = constrain(b6,0,255);
99.       
100.         // Make a new color and set pixel in the window
101.         //color c = color(r4,g5,b6);
102.         color c = color(r1);
103.         pixels[y*width + x] = c;    
104.       }
105.       popMatrix();
106.     }
107.     popMatrix();
108.     
109.     if(cheatScreen) {
110.       set(0, height - video.height, video);
111.     }
112.     video.updatePixels();
113. }
114. /**
115.  * Handle key presses:
116.  * 'c' toggles the cheat screen that shows the original image in the corner
117.  * 'g' grabs an image and saves the frame to a tiff image
118.  * 'f' and 'F' increase and decrease the font size
119.  */
120. void keyPressed() {
121.   switch (key) {
122.     case 'g': saveFrame(); break;
123.     case 'c': cheatScreen = !cheatScreen; break;
124.     case 'f': fontSize *= 1.1; break;
125.     case 'F': fontSize *= 0.9; break;
126.   }
127. }