module 'itk' has no attribute 'BinShrinkImageFilter'

When displaying large images I get the error bellow. I can set size_limit_2d large enough to avoid downsampling as a workaround.

This is from a relatively bare docker container. I installed with pip install itkwidgets. To my knowledge no other packages requires itk. import itk;itk.Version.GetITKVersion() yields 4.13.0.

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-26-4c0603b3ae2d> in <module>
----> 1 view(pixels,annotations=False, ui_collapsed=True, cmap=cm.grayscale)

/usr/local/lib/python3.6/dist-packages/itkwidgets/widget_viewer.py in view(image, ui_collapsed, annotations, interpolation, cmap, mode, shadow, slicing_planes, gradient_opacity, **kwargs)
    436             annotations=annotations, interpolation=interpolation, cmap=cmap,
    437             mode=mode, shadow=shadow, slicing_planes=slicing_planes,
--> 438             gradient_opacity=gradient_opacity, **kwargs)
    439     return viewer

/usr/local/lib/python3.6/dist-packages/itkwidgets/widget_viewer.py in __init__(self, **kwargs)
    225             self.extractor = itk.ExtractImageFilter.New(self.image)
    226             self.extractor.InPlaceOn()
--> 227             self.shrinker = itk.BinShrinkImageFilter.New(self.extractor)
    228         self._update_rendered_image()
    229         if self._downsampling:

/usr/local/lib/python3.6/dist-packages/itkLazy.py in __getattribute__(self, attr)
     38 
     39     def __getattribute__(self, attr):
---> 40         value = types.ModuleType.__getattribute__(self, attr)
     41         if value is not_loaded:
     42             module = self.__belong_lazy_attributes[attr]

AttributeError: module 'itk' has no attribute 'BinShrinkImageFilter'

[jpambrun]

Manually installing itk with pip install itk fixed it. import itk;itk.Version.GetITKVersion() still yields ‘4.13.0’, but now itk.BinShrinkImageFilter is available.

[thewtex]

Probably because itk-core in setup.py is not enough.

@jpambrun great catch! 🦅 Would you mind creating a PR to add itk-filtering to setup.py?