特征点检测算法
Harris角点检测
cv2.cornerHarris(gray,blockSize=4,ksize=5,k=0.04)
import cv2
import matplotlib.pyplot as plt
import numpy as np
def cv_show(name,image):
"""图像显示函数
name:字符串,窗口名称
img:numpy.ndarray,图像
"""
cv2.namedWindow(name,cv2.WINDOW_NORMAL)
cv2.imshow(name,image)
c