PImage laa;

void setup () {
  size (344,400);
  laa = loadImage("xyz.jpg");
  noLoop();
}

void draw(){
  image(laa ,0 , 0);
  for(int x=0; x<344; x++){
    for(int y=0; y<400; y++){
  float mitte = blue(get(x,y));
  float rechts = blue(get(x+1,y));
  float links = blue(get(x-1,y));
  float oben = blue(get(x,y+1));
  float unten = blue(get(x,y-1));
  float mw = (oben+unten+rechts+links+mitte)/5;
      color i = get(x,y);
  float r = red(i);
  float g = green(i);
  float b = blue(i);
  stroke(r,g,b);
  point(x,y);
 
    }
  }
}