压缩文件

import numpy as np
from skimage import io

#拼图片(28,28)*25 -> (25,28,28)
imgs = np.empty(shape=(0,28,28))
img  = io.imread("data.png")#(28,28)

imgs = np.append(imgs, [img] , axis=0)#(1,28,28)
imgs = np.append(imgs, [img] , axis=0)#(2,28,28)
imgs = np.append(imgs, [img] , axis=0)#(3,28,28)
imgs = np.append(imgs, [img] , axis=0)#(4,28,28)
imgs = np.append(imgs, [img] , axis=0)#(5,28,28)

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