The parameters of the Normalize() operation in ProcessImage class

[YZH-bot]

Thanks for opening the code!
I would like to ask how can we determine the parameters of the Normalize() operation?

class ProcessImage:
    def __init__(self, crop):
        self.crop = crop

        self.normalise_image = torchvision.transforms.Compose(
            [torchvision.transforms.ToTensor(),
             torchvision.transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225]),
             ]
        )