Inference on different image sizes

[danielcrane]

Thanks for this repo @soCzech, I've been using this for some personal projects and it's incredibly performant for all kinds of videos.

I was wondering if you at any point tried using images of different sizes? I've been wanting to try this for some edge cases that fail with the current settings, however it's not quite as trivial as changing the image size variable - so I was wondering if you might have any advice on how one would do this?