Back function

I am having a hard time trying to figure out of your Back code works. I am trying to remove the background from images and thought this would be a cool way to do it.

I trued running back by itself But I dont know where I import the picture

Start by locating the Back entry point and reading how it is intended to be run. Clarify how an image should be imported or passed to it, then document a complete example showing the expected input and usage.

Written by the indexing model from the issue text.