PImage img;
     PImage test;
     PImage[] imgpop = new PImage[6];

    int mean = 255/2;

        @Override
    public void setup() {
      img = loadImage("smile_100_100.png");
      test = new PImage(100,100);
      size(600, 100);
      for(int i = 0; i<6; i++)
      {
        imgpop[i] = loadImage("smile_100_100.png");
      }
      update();
    }

        @Override
    public void draw() {
        
    }


    void update() {
      
        for(int x = 0; x<6; x++)
        {
        float r = random(0,255);
        float b = random(0,255);
        float g = random(0,255);
        int clr = color(r,b,g);
        int clrComp = color(255-r,255-b,255-g);
        imgpop[x].loadPixels();
        test.loadPixels();
        img.loadPixels();
        for(int i = 0; i<100*100;i++)
        {
          if(img.pixels[i] < -1)
          {
            imgpop[x].pixels[i] = clr;
              test.pixels[i] = clr;
          }
          else
          {
            imgpop[x].pixels[i] = clrComp;
              test.pixels[i] = clrComp;
          }
        } 
        imgpop[x].updatePixels();
        image(imgpop[x],x*100,0);
        }
    }