Fix assert error

Author: bnmajor

notebooks/IDC_segmentation_primer.ipynb

@@ -1137,10 +1137,10 @@
         "\n",
         "itk_ct = itk.imread(ct_nrrd_path)\n",
         "\n",
-        "nrrd_spacing = itk_ct.GetSpacing()\n",
+        "nrrd_spacing = tuple(itk_ct.GetSpacing())\n",
         "nrrd_dim = itk_ct.shape\n",
         "\n",
-        "nii_spacing = itk.imread(pred_nii_path).GetSpacing()\n",
+        "nii_spacing = tuple(nib.load(pred_nii_path).header['pixdim'][1:4])\n",
         "nii_dim = itk.imread(pred_nii_path).shape\n",
         "\n",
         "assert (nrrd_spacing == nii_spacing) & (nrrd_dim == nii_dim)\n",