summer project:)
Download 'yolov5n-0.5.pt' from yolov5-face and put it in 'checkpoints' directory(https://github.com/deepcam-cn/yolov5-face/).
In 'inference' directory, open main.py and change line 59 in order to use your webcam. Then run the code by "python main.py" (in 'inference' directory).