opencv闭运算

#先膨胀再腐蚀
#用来填充前景物体中的小洞，或者前景物体上的小黑点
import cv2
import numpy as np
img = cv2.imread('1.jpg',0)

#用numpy生成卷积核
kernel = np.ones((5,5),np.uint8)
close = cv2.morphologyEx(img, cv2.MORPH_CLOSE, kernel)

cv2.imshow('close',close)
cv2.waitKey(0)
cv2.destroyAllWindows()