Calculate Intersection over Union (IoU) for Bounding Boxes

meta Given two bounding boxes defined by their top-left and bottom-right coordinates (x1, y1, x2, y2), compute the Intersection over Union (IoU) of the two bounding boxes. The IoU is defined as the area of overlap divided by the area of union of the two bounding boxes. Example input: box1 = [0, 0, 2, 2], box2 = [1, 1, 3, 3] Output: 0.1429 (rounded to four decimal places). Example Input [0, 0, 2, 2] [1, 1, 3, 3]