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#coding:utf-8import cv2import sysfrom PIL import Imagedef CatchUsbVideo(window_name, camera_idx): cv2.namedWindow(window_name) # 捕捉摄像头 cap = cv2.VideoCapture(camera_idx) while cap.isOpened(): ok, frame = cap.read() # 读取一帧数据 if not ok: break # 显示图像 cv2.imshow(window_name, frame) c = cv2.waitKey(10) if c & 0xFF == ord('q'): break # 释放摄像头并销毁所有窗口 cap.release() cv2.destroyAllWindows()if __name__ == '__main__': CatchUsbVideo("FaceRect", 0)
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