Python-OpenCV读取并保存视频

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import cv2

# cap = cv2.VideoCapture('action.mp4') #读取指定视频
cap = cv2.VideoCapture(0)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
# fps = cap.get(cv2.CAP_PROP_FPS)
# 保证摄像头的输出与保存的视频尺寸大小相同
size = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)), int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))
out = cv2.VideoWriter('camera_test.avi', fourcc, 10.0, size)
while True:
    ret, frame = cap.read()

    # 在图像上显示 Press Q to save and quit
    cv2.putText(frame, "Press Q to save and quit",
                (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 0.8, (0, 255, 0), 2)
    cv2.imshow('frame', frame)
    out.write(frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
out.release()
cv2.destroyAllWindows()

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