[Insight-users] simple contour extractor for binary images

[jerome schmid]

Hi everybody,

Reading the mailing lists, I have noticed that a user Yu long was looking
for a contour extractor in itk. Luis Ibanez answered him that such filter is
not directly implemented in ikt but that it will be easy to do it. I have
done one for my personal use and I test it on binary images, and it seems to
work fine... So please test it freely and send me any feddback if there are
some porblems.

Simple use:

typedef itk::SimpleContourExtractorImageFilter< InImageType, OutImageType >
ContourFilterType;
ContourFilterType::Pointer contourFilter	= ContourFilterType::New();

// set input foreground and background values
contourFilter->SetInputForegroundValue( 255 ); // let's suppose for example
that 0, 255 belong to InImage and OutImage pixel type
contourFilter->SetInputBackgroundValue( 0 );

// idem for background
contourFilter->SetOutputForegroundValue( 255 );
contourFilter->SetOutputBackgroundValue( 0 );

contourFilter->SetInput( previousFilter->GetOutput() );
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