[树莓派][更新ing]结合摄像头实现运动物体检测

安装opencv

 图片 image.jpg的处理

import cv2

img = cv2.imread('image.jpg', 1)
cv2.circle(img,center=(200,200),radius=100,color=(0,0,255),thickness=10)

cv2.namedWindow("ttt",0)
cv2.imshow('ttt',img)

cv2.waitKey(0)
cv2.destroyAllWindows()

视频的处理

import cv2

cap = cv2.VideoCapture(0)
#print("VideoCapture is opened?", cap.isOpened)

while(True):

    ret, frame = cap.read()
    #center = (frame.shape[1]//2, frame.shape[0]//2)

    #gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    #cv2.circle(frame, center=(200, 200), radius=100, color=(0,0,255))
    cv2.namedWindow("aaa",0)
    cv2.imshow("aaa", frame)


    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()