pytorch下载自带数据集并transform

import os.path
import numpy as np
import torch
import cv2
from PIL import Image
from torch.utils.data import Dataset
import re
from functools import reduce
from torch.utils.tensorboard import SummaryWriter as Writer
from torchvision import transforms
import torchvision as tv
t1=transforms.ToTensor()
#中心裁剪
t2=transforms.CenterCrop(300)
#原来的0-1最小值0则变成(0-0.5)/0.5=-1，而最大值1则变成(1-0.5)/0.5=1.
t3=transforms.Normalize

pytorch下载自带数据集并transform最先出现在Python成神之路。