FIX: Reorder encoding dimensions correctly

Author: effigies

nibabel/nifti1.py

@@ -2015,7 +2015,7 @@ def as_reoriented(self, ornt):
 
         # Also apply the transform to the dim_info fields
         new_dim = [
-            None if orig_dim is None else np.where(ornt[:, 0] == orig_dim)[0]
+            None if orig_dim is None else int(ornt[orig_dim, 0])
             for orig_dim in img.header.get_dim_info()]
 
         img.header.set_dim_info(*new_dim)