python - Saw a small project waifu2x based on convolutional neural network to improve image resolution on github? ?

Question

I am new to machine learning. I would like to ask, after understanding the algorithm and related knowledge of this small project, how to write a small software like the one below and apply it in practice? ?

This is the link to github:
https://github.com/nagadomi/w...

This is an online website for improving image resolution:
http://waifu2x.udp.jp/index.z...

This is a screenshot of the software I wrote:

淡淡烟草味 · Answer

This seems to be an opencv project, this one has templates. You can look for books on opencv.