PImage trees;
trees = loadImage("topanga.jpg");
stroke(255);
strokeWeight(12);
image(trees, 0, 0);
line(0, 0, width, height);
line(0, height, width, 0);
PImage treesCrop = trees.get(20, 20, 60, 60);
image(treesCrop, 20, 20);
