Hello everyone! I'm new on processing and I try to use the shape of a person captured by a firewire cam and to re-interpret this live-video as sentences or words.

I started by modified the exemple ascii-video in the library-video folder of the exemples. But I'm new on processing (YES!) and my experiments didn't work.

So, have you another solution easier or a solution to modify the ascii-video exemple?

Thanks !

I'm sorry but I thought I was not in the good part of the forum and my english is bad...

the code :


import processing.opengl.*;
import processing.video.*;

Capture video;
int count;
boolean cheatScreen;

// all ascii characters, sorted according to their visual density
static final String vals =
 "HELLO" +
 "I'M FINE";

// how quickly to update each pixel (see below)
static final float STEP = 0.01;

// starting font size
float asciiFontSize = 1.5f;

float dgR[], dgG[], dgB[];

char values[];
float bright[];
char chars[];

PFont font;


public void setup() {
 // run at the default size
 size(640, 480, P3D);
 // or run full screen, more fun!
 //size(screen.width, screen.height, OPENGL);

 video = new Capture(this, 80, 60, 15);
 count = video.width * video.height;

 font = loadFont("UniversLTStd-Light-48.vlw");

 // for the 256 levels of brightness, distribute the letters across
 // the an array of 256 elements to use for the lookup
 values = new char[256];
 float multiplier = 256.0 / (float) vals.length();
 for (int i = 0; i < 256; i++) {
   int which = values[i] = vals.charAt((int) (i / multiplier));
 }

 // current characters for each position in the video
 chars = new char[count];



}


public void captureEvent(Capture c) {
 c.read();
}


void draw() {
 background(0);

 pushMatrix();

 float hgap = (float) width / (float) video.width;
 float vgap = (float) height / (float) video.height;

 scale(max(hgap, vgap) * asciiFontSize);
 textFont(font, asciiFontSize);

 int index = 0;
 for (int y = 1; y < video.height; y++) {

   // move down for next line
   translate(0,  1.0 / asciiFontSize);

   pushMatrix();
   for (int x = 0; x < video.width; x++) {
     int pixelColor = video.pixels[index];
     int r = (pixelColor >> 16) & 0xff;
     int g = (pixelColor >> 8 ) & 0xff;
     int b = pixelColor & 0xff;

     // another option would be to properly calculate brightness as luminance:
     // luminance = 0.3*red + 0.59*green + 0.11*blue
     // or you could instead red + green + blue, and make the the values[] array
     // 256*3 elements long instead of just 256.
     int brightness = max(r, g, b);

     // the STEP variable is used to damp the changes so that letters flicker less
     bright[index] =
       (bright[index] * (1.0 - STEP) + (float)brightness * STEP);

     fill(pixelColor);
     text((char) values[(int) bright[index]], 0, 0);
     index++;

     // move over for next character
     translate(1.0 / asciiFontSize, 0);
   }
   popMatrix();
 }
 popMatrix();

 if (cheatScreen) {
   image(video, 0, height - video.height);
 }
}


/**
* Handle key presses:
* 'c' toggles the cheat sccimage in the corner
* 'g' grabs an image and saves the frame to a tiff image
* 'f' and 'F' iffncrease and decrease the font size
*/
public void keyPressed() {
 switch (key) {
   case 'g': saveFrame(); break;
   case 'c': cheatScreen = !cheatScreen; break;
   case 'f': asciiFontSize *= 1.1f; break;
   case 'F': asciiFontSize *= 0.9f; break;
 }
}