import cv2
import os
output_dir ='/home/stt/data/camera/'
i = 1
cap = cv2.VideoCapture(0)
while 1:
ret, frame = cap.read()
cv2.imshow('cap', frame)
flag = cv2.waitKey(1)
if flag == 13://按下回车键
output_path = os.path.join(output_dir, "%04d.jpg" % i)
cv2.imwrite(output_path, frame)
i += 1
if flag == 27://按下ESC键
break