def create_box(data):
    """Create integer box

    Parameters
    ----------
    data : (N, 2) array
        Points around which the box is created.

    Returns
    -------
    box : (2, 2) array
        Integrer extrema of the box.
    """
    min_val = data.min(axis=0)
    max_val = data.max(axis=0)
    tl = np.array([min_val[0], min_val[1]])
    br = np.array([max_val[0], max_val[1]])
    box = np.round(np.array([tl, br])).astype(int)
    return box


def bounding_box_crop(image, rectangle):
    """Create integer box

    Parameters
    ----------
    image : (N, M) array
        2D image.
    rectangle : (4, 2) array or (2, 2) array
        Rectangle for cropping.

    Returns
    -------
    cropped_image : (U, V) array
        Cropped 2D image.
    """
    min_val, max_val = create_box(rectangle)
    return image[min_val[0]: max_val[0], min_val[1]: max_val[1]]