[Insight-users] ContourExtractor2DImageFilter in python

[Rick Giuly]

Hello All,

I'm trying to get a contour as a list of points from a binary image of a 
blob. I'm assuming that ContourExtractor2DImageFilter is the easiest way 
to do this, considering what filters are available in python. 
extractor.GetOutputs() returns a DataObjectPointer, I'm not sure how to 
access the individual elements of this in python. Could someone advise?

(I will need to access each of the contours and each of the points in 
each contour.)

Thanks

-Rick

----

import itk

ImageType = itk.Image[itk.F, 2]
ReaderType = itk.ImageFileReader[ImageType]

reader = ReaderType.New(FileName = "data/A.tiff")
image = reader.GetOutput()

ExtractorType = itk.ContourExtractor2DImageFilter[ImageType]

extractor = ExtractorType.New()
extractor.SetInput(image)
extractor.SetContourValue(100.0)
extractor.Update()
print extractor.GetNumberOfOutputs()
print extractor.GetOutputs()
# how should I access individual contours?