_img_metas = { 'ori_shape': (480, 640, 3), 'img_shape': (480, 640, 3), 'pad_shape': (480, 640, 3), 'scale_factor': [1., 1., 1., 1.], 'flip': True, 'flip_direction': 'horizontal', 'img_norm_cfg': { 'mean': [123.675, 116.28 , 103.53 ], 'std': [58.395,...