学习笔记(22):Python+OpenCV计算机视觉-形态学转换-开运算

立即学习:https://edu.csdn.net/course/play/10552/234936?utm_source=blogtoedu

开运算

先腐蚀再膨胀（去除噪声并保留原有形状）

函数morphologyEx

opening = cv2.morphologyEx(src , cv2.MORPH_OPEN , kernel)

[code]import cv2
import numpy as np
img = cv2.imread('111.jpg',cv2.IMREAD_UNCHANGED)
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
k = np.ones((5,5),np.uint8)
r,tw = cv2.threshold(gray, 120 , 255 , cv2.THRESH_BINARY)
dst = cv2.morphologyEx(tw, cv2.MORPH_OPEN, k)
cv2.namedWindow('gray',cv2.WINDOW_AUTOSIZE)
cv2.namedWindow('tw',cv2.WINDOW_AUTOSIZE)
cv2.namedWindow('dst',cv2.WINDOW_AUTOSIZE)
cv2.imshow('gray',gray)
cv2.imshow('tw',tw)
cv2.imshow('dst',dst)
cv2.waitKey(0)
cv2.destroyAllWindows()

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