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Tip:Harris角点检测
# -*- coding: utf-8 -*-
"""
Created on Sat Sep 22 21:18:41 2018
@author: Administrator
"""
import cv2
import numpy as np
img = cv2.imread("pisa.jpg")
cv2.imshow("original image",img)
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
gray = np.float32(gray)
dst = cv2.cornerHarris(gray,4,5,0.04)
dst = cv2.dilate(dst,None)
img[dst > 0.01*dst.max()] = [0,0,255]
cv2.imshow("gray image",gray)
cv2.imshow("dst image",dst)
cv2.imshow("Harris corner",img)
if cv2.waitKey(0) == 27:
cv2.destroyAllWindows()