void main() {
String where = "http://javascool.gforge.inria.fr/documents/sketchbook/codagePixels/";
load(where + "image_j.pbm");
sleep(2000);
load(where + "image_feep.pgm");
sleep(2000);
save("image_feep.pbm");
load("image_feep.pbm");
sleep(2000);
save("image_feep.ppm");
load("image_feep.ppm");
sleep(2000);
load("image_rgb.ppm");
sleep(2000);
save(where + "image_rgb.pgm");
load("image_rgb.pgm");
println("done !");
}