[Insight-users] ball algorithm

[Raquel Itk]

Hi,
I have an image Dicom of thoracic CT and I want to apply a ball structure
with the dilate operation. I had read:
Examples/Filtering/MathematicalMorphologyBinaryFilters.cxx.
 But I would like to do this, first with the  left lung and then  with the
right lung. I though to do two images, one only with the left lung and other
with the right lung.
I would to know to apply this, only of a part of an image or to indicate the
coordinate start to do dilate operation. :
Thanks
Raquel
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