balou

import gab.opencv.*;

OpenCV opencv;
String dir = "jungle", delay = "0.1";
int num = 24, counter;
PImage  before, after, grayDiff;
PImage[] pics = new PImage[num];
PImage[] grayDiffs = new PImage[num-1];

void settings() {
  before = loadImage(dir+"/frame_0_delay-" + delay + "s.gif");
  int w = before.width;
  size(w, before.height);
}

void setup() {
  background(0);
  frameRate(10);
  //load original images in array
  for (int i=0; i<num; i++) {
    pics[i] = loadImage(dir+"/frame_" + i + "_delay-" + delay + "s.gif");
  }
  // create grayDiffs from those images
  for (int i=0; i<grayDiffs.length; i++) {
    doStuff(i);
  }
}

void doStuff(int i) {
  if (i<num-1) {
    before = pics[i];
    after = pics[i+1];
    opencv = new OpenCV(this, before);
    opencv.diff(after);
    grayDiff = opencv.getSnapshot();
    grayDiffs[i] = grayDiff;
  }
}

void draw() {
  tint(255,150);
  image(grayDiffs[frameCount%grayDiffs.length],0,0);
  if (frameCount<num) saveFrame("image-###.gif");
}