Function fitness

utils/utils.py:718–721

(k)

        return k

    def fitness(k):  # mutation fitness
        iou = wh_iou(wh, torch.Tensor(k))  # iou
        max_iou = iou.max(1)[0]
        return (max_iou * (max_iou > thr).float()).mean()  # product

    # Get label wh
    wh = []