from PIL import Image
import numpy as np
import math
import os
path = 'C:\\Users\\Administrator\\Desktop\\old_label\\'
newpath = 'C:\\Users\\Administrator\\Desktop\\mask\\'
def toeight():
filelist = os.listdir(path) # 该文件夹下所有的文件（包括文件夹）
for file in filelist:
whole_path = os.path.join(path, file)
img = Image.open(whole_path) # 打开图片img = Image.open(dir)#打开图片
img = np.array(img)
# img = Image.fromarray(np.uint8(img / float(math.pow(2, 16) - 1) * 255))
img = Image.fromarray(np.uint8(img))
img.save(newpath + file)
toeight()
