python opencv cv2.approxpolyDp 怎么使用

要使用cv2.approxPolyDP函数，你需要传入一个带有点的数组，以及一个精度参数，它会返回一个点数组，这些点拟合出了输入点的近似形状。例如：import cv2import numpy as np# Create an array with the coordinates of the points# that you want to approximate.pts = np.array([[10, 5], [20, 30], [70, 20], [50, 10]], np.int32)# Reshape the arraypts = pts.reshape(-1, 1, 2)# Create another array with the values of accuracy# that you want to use for the approximation.eps = 0.1# Apply the approximationresult = cv2.approxPolyDP(pts, eps, True)# Print the resultprint (result)