Exporting Object Detection Data

Hi all, I built a model for object detection and would like help on how I can implement this into an app of some form. What function do I have to generate to run this type of model? Before this I mostly had experience with just image classification problems and how to implement those. Also, how do I test with just one image to see how it generates the bounding box. Not something from my test_data.csv. I am following lesson 8 and 9 of the lecture for my setup.

Thank you very much,