数据可视化-Matplotlib读取核磁共振成像灰度展示

import matplotlib.pyplot as plt
import matplotlib.cbook as cbook
import numpy as np
# 从cbook中读取256x256图像数据
with cbook.get_sample_data('s1045.ima.gz') as dfile:    
    im = np.frombuffer(dfile.read(), np.uint16).reshape((256, 256))
fig, ax = plt.subplots(num="核磁共振图片案例")
ax.imshow(im, cmap="gray")
ax.axis('off')
plt.show()