$ pip3 install opencv-python
$ pip3 install numpy
$ pip3 install Pillow$ python3 getseal.py -i source.png -o out.png
- https://blog.csdn.net/wsp_1138886114/article/details/82858380
- https://blog.csdn.net/kongdacai4584/article/details/102824470
$ pip3 install opencv-python
$ pip3 install numpy
$ pip3 install Pillow$ python3 getseal.py -i source.png -o out.png