使用SimpleITK读取和保存NIfTI文件

## using simpleITK to load and save data.
import SimpleITK as sitk
itk_img = sitk.ReadImage('./***.nii.gz')
img = sitk.GetArrayFromImage(itk_img)
print("img shape:",img.shape)

## save 
out = sitk.GetImageFromArray(img)
# # out.SetSpacing(itk_img.GetSpacing())
# # out.SetOrigin(itk_img.GetOrigin())
sitk.WriteImage(out,'***.nii.gz')