h1791820113的博客

day1记录：import cv2img = cv2.imread(‘xxx.jpg’,0)cv2.imshow(‘imageWindow’,img)key = cv2.waitKey(0) #parameter是ms级单位，0为停留在当前帧if key == 27:cv2.destoryAllWindows()...

import cv2cap = cv2.videoCapture(0) #parameter是0代表本机camera，换作文件路径也行while cap.isOpened:ret, frame = cap.read() #两个返回值，第一个是布尔类型判断成功，第二是帧gray = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)cv2.imshow(‘fr...

import numpy as npimport cv2img = np.zeros((500, 500, 3), np.uint8)cv2.line(img, (0, 0), (499, 499), (0, 0, 255), 5) #绘制线段cv2.rectangle(img, (5, 230), (35, 270), (255, 0, 0), 3) #绘制矩形cv2.circle(i...

mport cv2import numpy as npdef draw_circle(event, x, y, flags, param):if event == cv2.EVENT_LBUTTONDBLCLK:cv2.circle(img, (x,y), 100, (255,0,0), -1)img = np.zeros((500, 500, 3), np.uint8)cv2...