vision.py 文件源码

def get_corners(contour):
    """
    Given a contour that should have a rectangular convex hull, produce a sorted list of corners for the bounding rectangle
    :param contour:
    :return:
    """
    hull = cv2.convexHull(contour)
    hull_poly = cv2.approxPolyDP(hull, 0.05 * cv2.arcLength(hull, True), True)
    return sort_corners(hull_poly)