Dealing with boundingboxes within object detection tasks could be challenging when using more than one boundingbox format. It is highly recommended only using one (!) over a whole project.
Following I present the three common once, which are all represented by a touple of four:
(cx, cy, w, h) (box center coordinates, width, and height)
(xmin, xmax, ymin, ymax)
xmin, ymin, xmax, ymax)