https://github.com/pythonlessons/YOLOv3-object-detection-tutorial/blob/e08dee590f7b1d36a6caf9f9af2cff39476dc77e/YOLOv3-CSGO-detection/train.py#L109 I refer to the above line, what is the reason it is having NonexNonex3 instead of 416x416x3