Merge pull request #268 from effigies/fix/aseg_nearest

FIX: Resample aseg with nearest-neighbor interpolation
nipreps · Oct 7, 2021 · f28a46d · f28a46d
2 parents bd27239 + 2d76953
commit f28a46d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/smriprep/workflows/surfaces.py b/smriprep/workflows/surfaces.py
@@ -522,7 +522,9 @@ def init_segs_to_native_wf(*, name='segs_to_native', segmentation='aseg'):
     fssource = pe.Node(nio.FreeSurferSource(), name='fs_datasource')
     # Resample from T1.mgz to T1w.nii.gz, applying any offset in fsnative2t1w_xfm,
     # and convert to NIfTI while we're at it
-    resample = pe.Node(fs.ApplyVolTransform(transformed_file='seg.nii.gz'), name='resample')
+    resample = pe.Node(
+        fs.ApplyVolTransform(transformed_file='seg.nii.gz', interp='nearest'),
+        name='resample')
 
     if segmentation.startswith('aparc'):
         if segmentation == 'aparc_aseg':