【python】医学图像上采样和下采样

上采样：丰富图像信息

下采样：降低图像维度

利用zoom函数

order=0，最近邻插值

order=1，双线性插值

order=2，

zoom<1，下采样，>1，上采样

 import SimpleITK as sitk from scipy.ndimage.interpolation import zoom import matplotlib.pyplot as plt   path = 'G:/brats17-paper/Brats18preprocessing/HGG/Brats18_2013_2_1/Brats18_2013_2_1.nii.gz' img = sitk.ReadImage(path) data = sitk.GetArrayFromImage(img) plt.imshow(data[100,:,:], cmap = 'gray') plt.show()  data_img = zoom(data, zoom = 0.5, order=1) print(data_img.shape) plt.imshow(data_img[50,:,:], cmap = 'gray') plt.show() 

文章来源: https://blog.csdn.net/weixin_42338058/article/details/85048902