Training a Classifier — PyTorch Tutorials 2.9.0+cu128 documentation

The output of torchvision datasets are PILImage images of range [0, 1]. We transform them to Tensors of normalized range [-1, 1]. Note If you are running this tutorial on Windows or MacOS and encounter a BrokenPipeError or RuntimeError related to multiprocessing, try setting the num_worker of torch.utils.data.DataLoader() to 0. transform = transforms.Compose( [transforms.ToTensor(), transforms.Nor