In my example, yes, it’s one object in each annotation file. I haven’t tried putting more than 1, but I’m pretty sure the Yolo trainer would take those. However I wanted to make this process fast, so there’s only 1 class (object) in each file… This way I hardcode the class in the code, run it, quickly draw rectangles in each image, and they all get the same class. Then change the class and input folders, do it again…