//Input should be .jpg or .png
String input = "";
String output = "";

PImage inputImage;
PGraphics canvas;

void setup() {
  if (args != null) {
  	if (args.length > 0 && args[0] != null) {
  		input = args[0];
  	} else {
  		println("No input argument provided");
  		exit();
  	}
    if (args.length > 1 && args[1] != null) {
    	output = args[1];
    } else {
    	exit();
    }
  } else {
    println("No arguments provided");
    exit();
  }

  //don't show the processing window
  surface.setVisible(false);
  //only draw script once
  noLoop();
  //use psuedo-random generator
  randomSeed(50);
}

void draw () {
	inputImage = loadImage(input);
	canvas = createGraphics(inputImage.width, inputImage.height);
	canvas.image(inputImage, 0, 0);

	/************************
	 * Do cool things here!!!
	 ************************/
	
	canvas.save(output);
	exit();
}