16 lines
367 B
Python
16 lines
367 B
Python
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import cv2
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import time
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cap = cv2.VideoCapture(2) # 0表示第一个摄像头
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start=time.time()
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while True:
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ret, frame = cap.read()
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if not ret: break
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end=time.time()
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diff=end-start
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print('cap img',1/diff)
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start=end
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###cv2.imshow('USB Camera', frame)
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if cv2.waitKey(1) == 27: break # 按ESC退出
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cap.release()
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cv2.destroyAllWindows()
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