Possible improvement for pano-cube.py

[OshinoMoumou]

Greetings!
I noticed that pano-cube.py referred a StackOverflow post, while a recent comment to it rewrote this with lots of numpy tricks, and using opencv for the pixel interpolation (not really needed..) and it went from 244s to 7s on a 8000x4000 image. .
I'm trying to learn the usefulness of such small updates on StackOverflow. Would this comment help improve your code? I understand that such improvement might not be necessary in real life situation. In that case, do you think this comment can help prevent future bugs (for example, when the code were reused somewhere else)?
I'll really appreciate it if you could kindly give me some feedback or suggestions. Thank you very much for your time.
Have a nice day!