def _get_save_image_name(self, output_dir, image_path):
        """
        Get save image name from source image path.
        """
        image_name = os.path.split(image_path)[-1]
        name, ext = os.path.splitext(image_name)
        return os.path.join(output_dir, "{}".format(name)) + ext

        Get save image name from source image path.
        
ppdet/engine/trainer.py