import processing.serial.*;

PImage img;	
Serial myPort;

void setup() {

  //set these to the size of the image
  size(512,512);

  //this is the name of your image file saved in the data folder in your
  //processing folder see processing.org for help

  img = loadImage("RGBR.png");

  //the [0] may be [another number] on your computer
  myPort = new Serial(this, Serial.list()[0], 9600);

}

void draw() {
  background(0);
  image(img,0,0);
  img.loadPixels();
}

void mousePressed() 
{
  // myPort.write("CL");
  // myPort.write(int(red(img.pixels[mouseX+mouseY*img.width])));
  // myPort.write(int(green(img.pixels[mouseX+mouseY*img.width]))); 
  // myPort.write(int(blue(img.pixels[mouseX+mouseY*img.width]))); 
  //print("rgb ");
  //print(hex(int(red(img.pixels[mouseX+mouseY*img.width])), 2)+" ");
  //print(hex(int(green(img.pixels[mouseX+mouseY*img.width])), 2)+" "); 
  //println(hex(int(blue(img.pixels[mouseX+mouseY*img.width])), 2)); 
  myPort.write("rgb ");
  myPort.write(hex(int(red(img.pixels[mouseX+mouseY*img.width])), 2));
  myPort.write(hex(int(green(img.pixels[mouseX+mouseY*img.width])), 2)); 
  myPort.write(hex(int(blue(img.pixels[mouseX+mouseY*img.width])), 2)); 
    myPort.write("\n");
  print("rgb ");
  print(hex(int(red(img.pixels[mouseX+mouseY*img.width])), 2));
  print(hex(int(green(img.pixels[mouseX+mouseY*img.width])), 2)); 
  println(hex(int(blue(img.pixels[mouseX+mouseY*img.width])), 2)); 
}