import cv2
def close(image_path):
    src = cv2.imread(image_path, cv2.IMREAD_UNCHANGED)
    # 交叉结构元
    kernel = cv2.getStructuringElement(cv2.MORPH_CROSS, (10, 10))
    # 进行闭运算
    close = cv2.morphologyEx(src, cv2.MORPH_CLOSE, kernel)
    # 显示闭运算后的图片
    cv2.imshow('result', close)

    cv2.waitKey(0)

    cv2.destroyAllWindows()