hello I wan't to ask about the normalize operation.

[Tomlk]

about the dataset, why you use the transform operation.

        train_transform_s = transforms.Compose([
            Random90Rot(),
            transforms.RandomCrop((self.imsize_x,self.imsize_x)),
            transforms.ToTensor(),
            transforms.Normalize(mean=(0.5, 0.5, 0.5), std=(0.5, 0.5, 0.5))
        ])
        test_transform = transforms.Compose([
            Crop(self.max_hw),
            transforms.ToTensor(),
            transforms.Normalize(mean=(0.5, 0.5, 0.5), std=(0.5, 0.5, 0.5))
        ])