comp_vision.pde

import processing.video.*;

Capture video;
int x, y;
color cc;
color trackedColor;
int size = 1;
int threshold_val = 40;

//int[] colors[][];

void setup(){
  size(640, 360);
  video = new Capture(this, 320, 240);
  video.start();
}

void captureEvent(Capture video){
    video.read();
}

void draw(){
  video.loadPixels();
  //print(video.pixels);
  image(video, 0, 0);
 
   noStroke();
 
  fill(trackedColor);
  //write code that finds the distance between the ideal value
  
  int avg_x = 1;
  int avg_y = 1;
  int count = 1;
 
  rect(0, 0, size, size);
  String s1 = red(trackedColor) + " " + green(trackedColor) + " " + blue(trackedColor);
  String s2 = "Avg X: " + avg_x + " Avg Y: " + avg_y;
  text(s2, 15, 10);
  

 
  for(int r = 0;r<video.height;r++){
    for(int c = 0;c<video.width;c++){
        cc = video.pixels[c+(r*video.width)];
        if(threshold(trackedColor, cc, threshold_val)){
          fill(0, 255, 0);
            count+=1;
           ellipse(c, r, size, size);
           avg_x +=c;
           avg_y +=r;
        }
           
    }
  }
  
}//end draw

public boolean threshold(color trackedColor, color cc, int thresh){
  if(abs(red(trackedColor)-red(cc))<=thresh && abs(green(trackedColor)-green(cc))<=thresh && abs(blue(trackedColor)-blue(cc))<=thresh){
      return true;
  }//end if
  return false;
}//end function

void mousePressed(){
  x = mouseX;
  y = mouseY;
  
  int position = (y*video.width) + x;
  color c_selected = video.pixels[position];
  print(red(c_selected) + ": " + green(c_selected) + ": " + blue(c_selected));
  trackedColor = color(red(c_selected), green(c_selected), blue(c_selected));
}