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import cv2
import matplotlib as np
#去噪点最好
img = cv2.imread("a28.png")
median = cv2.medianBlur(img,5)

# res = np.hstack((median)) #vstack 竖着的
cv2.imshow('image',img)
cv2.imshow('median',median)
cv2.waitKey(0)
cv2.destroyAllWindows()

image-20230304170408748