): The sequence of means for each channel, to be used when normalizing images. Defaults to the ImageNet mean. image_std (`int`, *optional*, defaults to `[0.229, 0.224, 0.225]`): The sequence of standard deviations for each channel, to be used when normalizing images. Defaults to the ImageNet std. ignore_index (`int`, *optional*): Label to be assigned to background pixels in segmentation maps. If provided, segmentation map pixels denoted with 0 (background) will be replaced with `ignore_index`. do_reduce_labels (`bool`, *optional*, defaults to `False`): Whether or not to decrement all label values of segmentation maps by 1. Usually used for datasets where 0 is used for background, and background itself is not included in all classes of a dataset (e.g. ADE20k). The background label will be replaced by `ignore_index`. Ú