/*
Keepmax (c) Andrew Senior  2006 (works on processing 0115Beta)
http://www.andrewsenior.com/ 
Please keep this header when redistributing  

This is a very simple toy that keeps the maximum brightness value at each pixel
You can achieve some interesting effects with this in a darkened room and
some light sources (torch, cellphone, LED) as seen in 
Darcy's Light Tracer: 
http://lighttracer.darcy.co.nz/

click with the mouse to reset the display. 
*/

import JMyron.*;
float M_PI=3.14159;
int BITMASK=0xff;

JMyron m;//a camera object

//variables to maintain the floating green circle
void setup(){
  // Set this to your video source's size 
  size(352,288, P3D);
 // size(320,240);
  m = new JMyron();//make a new instance of the object
  m.start(width,height);//start a capture at chosen size
  println("Keep max pixel using Myron " + m.version());
  rectMode(CENTER);
  noStroke();
}


void draw(){
  m.update();//update the camera view from JMyron
  drawForeground();
}


void drawForeground(){
  int[] CurrentFrame = m.image(); //get the current image of the camera
  loadPixels();
  int iPixel, iBackground;
  for(int i=0;i<width*height;i++)
  { 
    iPixel=CurrentFrame[i];
    int iDisplay=pixels[i];

   int iR=(iPixel>>16)&BITMASK;
   int iG=(iPixel>>8)&BITMASK;
   int iB=(iPixel>>0)&BITMASK;

   int iRM=(iDisplay>>16)&BITMASK;
   int iGM=(iDisplay>>8)&BITMASK;
   int iBM=(iDisplay>>0)&BITMASK;

  // Method one keep max in each of R,G,B
  // pixels[i] = color(max(iR,iRM), max(iG, iGM), max(iB, iBM)); 

  // Method two keep brightest pixel
   if (iR+iG+iB>iRM+iGM+iBM)
     pixels[i]=iPixel;
  }
  updatePixels();
}

void mousePressed(){
 // m.settings();//click the window to get the settings
  for(int i=0;i<width*height;i++)
  { 
     pixels[i]=0;
  }
  updatePixels();
}