ENH: Default to 4mm re-zoom for b-spline approximation (#314)

* ENH: Default to 4mm re-zoom for b-spline approximation

* MNT: Update nibabel to 3.1+

* TEST: Add zooms_min to test

Author: effigies

min-requirements.txt

@@ -1,6 +1,6 @@
 # Auto-generated by .maint/update_requirements.py
 attrs==20.1.0
-nibabel==3.0.1
+nibabel==3.1.0
 nipype==1.5.1
 traits<6.4
 niworkflows==1.6.3

requirements.txt

@@ -1,6 +1,6 @@
 # Auto-generated by .maint/update_requirements.py
 attrs>=20.1.0
-nibabel>=3.0.1
+nibabel>=3.1.0
 nipype<2.0,>=1.5.1
 traits<6.4
 niworkflows~=1.6.3

sdcflows/interfaces/bspline.py

@@ -78,7 +78,7 @@ class _BSplineApproxInputSpec(BaseInterfaceInputSpec):
     zooms_min = traits.Union(
         traits.Float,
         traits.Tuple(traits.Float, traits.Float, traits.Float),
-        default_value=1.95,
+        default_value=4.0,
         usedefault=True,
         desc="limit minimum image zooms, set 0.0 to use the original image",
     )

sdcflows/interfaces/tests/test_bspline.py

@@ -74,6 +74,7 @@ def test_bsplines(tmp_path, testnum):
         in_data=test1.outputs.out_field,
         in_mask=str(tmp_path / "target.nii.gz"),
         bs_spacing=[(4, 6, 8)],
+        zooms_min=0,
         recenter=False,
         ridge_alpha=1e-4,
     ).run()

setup.cfg

@@ -29,7 +29,7 @@ setup_requires =
     toml
 install_requires =
     attrs >= 20.1.0
-    nibabel >=3.0.1
+    nibabel >=3.1.0
     nipype >=1.5.1,<2.0
     traits <6.4
     niworkflows @ git+https://github.com/nipreps/niworkflows.git@master