opencv2摄像头驱动

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import cv2
capture = cv2.VideoCapture(0)

while(True):
    # 获取一帧
    ret,frame = capture.read()
    # 将这一帧转换为灰度图
    # gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    cv2.imshow('frame',frame)
    if cv2.waitKey(1) == ord('q'):
        break