cv2调用摄像头并保存视频
本篇博客主要介绍通过python中的cv2模块调用摄像头,并将读取的视频内容保存为视频文件。
import cv2
cap = cv2.VideoCapture(0)
width = 640
ret = cap.set(3, width)
height = 480
ret = cap.set(4, height)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('out.avi', fourcc, 20.0, (width, height))
while cap.isOpened():
ret, frame = cap.read()
if ret is True:
frame = cv2.resize(frame, (640, 480))
out.write(frame)
cv2.imshow('frame', frame)
else:
break
key = cv2.waitKey(1)
if key == ord('q'):
break
cap.release()
out.release()
cv2.destroyAllWindows()