Feature Request: per_xxx_function could return bool value to indicate abort

[Hermholtz]

per_frame_function callbacks and others from the family could return a boolean value to indicate to ImageAI that detection should be aborted. My scenario is the following: I'm using detectObjectsFromVideo function to detect objects in webcam. I'm passing per_frame_function to process detected objects and show info to the user. If the user decides to close the window, the detectObjectsFromVideo function should terminate gracefully, but the program should be allowed to continue to do other tasks.

So I propose to have something like this:

def forFrame(frame_number, output_array, output_count, returned_frame):

    process_frame()
    display_frame()
    # ...

    if window_is_closed:
        return True    # <--- this means 'finish detection'

If the return statement will be omitted in the per_xxx_function, the return value will be None thus allowing detection to continue. That will provide backward compatibility.

[cagnulein]

i need this too, @OlafenwaMoses what do you think? If you agree i could do a pull request

[cagnulein]

@chojrak11 is what you had in mind?

[Hermholtz]

Wow that looks awesome, just please add a bit of documentation to the docstring of the function and I think it should be accepted :)