如何使用python cv2.SimpleBlobDetector来检测图像中单个最大的点？

import cv2
import numpy as np

image = cv2.imread('image.jpg', cv2.IMREAD_GRAYSCALE)

params = cv2.SimpleBlobDetector_Params()
detector = cv2.SimpleBlobDetector_create(params)

keypoints = detector.detect(image)

max_keypoint = max(keypoints, key=lambda x: x.size)

image_with_keypoints = cv2.drawKeypoints(image, [max_keypoint], np.array([]), (0, 0, 255), cv2.DRAW_MATCHES_FLAGS_DRAW_RICH_KEYPOINTS)

cv2.imshow('Image with Keypoints', image_with_keypoints)
cv2.waitKey(0)
cv2.destroyAllWindows()