python边缘检测
import cv2import numpy as npimg = cv2.pyrDown(cv2.imread("hammer.jpg", cv2.IMREAD_UNCHANGED))# threshold 函数对图像进行二化值处理,由于处理后图像对原图像有所变化,因此img.copy()生成新的图像,cv2.THRESH_BINARY是二化值ret, thresh = cv2.threshold(cv2.cvtColor(img.copy(), cv2.COLOR_BGR2GRAY),...