[Insight-users] Error ->>> ImageToVectorImageFilter + ImageToListAdaptor

[Ricardo Ferrari]

Hi Luis,

I am trying to use the two following itk classes to get Vector Samples into
an Gaussian Mixture Model classifier. Although, I am following your
suggestion (please see
http://www.cmake.org/pipermail/insight-users/2007-April/022003.html ) I am
still getting an error.

I really appreciate if you could help on this.

Thanks,
Ricardo



#include "io.h"
#include "itkImageToVectorImageFilter.h"
#include "itkScalarToArrayCastImageFilter.h"
#include "itkImageToListAdaptor.h"

/// Pixel type definition
typedef signed short
                  TInputPixelType;

/// Define type of the input and output images
typedef itk::Image< TInputPixelType, Dimension >
TInputImageType;


///
/// Main function
///
int main( int argc, char **argv )
{
    // Read a minc image
    TInputImageType::Pointer img = ReadMincImage< TInputImageType >(
"test.mnc" );

    typedef itk::ImageToVectorImageFilter< TInputImageType >
ImageToVectorImageFilterType;
    ImageToVectorImageFilterType::Pointer vectorImage =
ImageToVectorImageFilterType::New();
    vectorImage->SetNthInput( 0, img );
    vectorImage->Update();

    typedef itk::Statistics::ImageToListAdaptor<
ImageToVectorImageFilterType::OutputImageType > ImageToListAdaptorType;
    ImageToListAdaptorType::Pointer adaptor = ImageToListAdaptorType::New();
    adaptor->SetImage( vectorImage->GetOutput() );

    return 0;
}


[100%] Building CXX object
segmentation/gmm/CMakeFiles/gmm_classifier.dir/main.cpp.o
In file included from
/usr/local/include/InsightToolkit/Common/itkConceptChecking.h:23,
                 from
/usr/local/include/InsightToolkit/Common/itkImageHelper.h:20,
                 from
/usr/local/include/InsightToolkit/Common/itkImageBase.h:35,
                 from
/usr/local/include/InsightToolkit/Common/itkImage.h:20,
                 from /home/ferrari/Workspace/MIP_PROJECTS/trunk/io/io.h:6,
                 from
/home/ferrari/Workspace/MIP_PROJECTS/trunk/segmentation/gmm/main.cpp:2:
/usr/local/include/InsightToolkit/Common/itkPixelTraits.h: In instantiation
of ‘itk::PixelTraits<itk::VariableLengthVector<short int> >’:
/usr/local/include/InsightToolkit/Numerics/Statistics/itkImageToListAdaptor.h:97:
instantiated from
‘itk::Statistics::ImageToListAdaptor<itk::VectorImage<short int, 3u>,
itk::VariableLengthVector<short int> >’
/home/ferrari/Workspace/MIP_PROJECTS/trunk/segmentation/gmm/main.cpp:51:
instantiated from here
/usr/local/include/InsightToolkit/Common/itkPixelTraits.h:41: error:
‘Length’ is not a member of ‘itk::VariableLengthVector<short int>’
In file included from
/home/ferrari/Workspace/MIP_PROJECTS/trunk/segmentation/gmm/main.cpp:8:
/usr/local/include/InsightToolkit/Numerics/Statistics/itkImageToListAdaptor.h:
In member function ‘const TMeasurementVector&
itk::Statistics::ImageToListAdaptor<TImage,
TMeasurementVector>::GetMeasurementVector(const typename
TImage::PixelContainer::ElementIdentifier&) const [with TImage =
itk::VectorImage<short int, 3u>, TMeasurementVector =
itk::VariableLengthVector<short int>]’:
/home/ferrari/Workspace/MIP_PROJECTS/trunk/segmentation/gmm/main.cpp:56:
instantiated from here
/usr/local/include/InsightToolkit/Numerics/Statistics/itkImageToListAdaptor.h:323:
warning: taking address of temporary
/usr/local/include/InsightToolkit/Numerics/Statistics/itkImageToListAdaptor.h:323:
warning: returning reference to temporary
make[2]: *** [segmentation/gmm/CMakeFiles/gmm_classifier.dir/main.cpp.o]
Error 1
make[1]: *** [segmentation/gmm/CMakeFiles/gmm_classifier.dir/all] Error 2
make: *** [all] Error 2
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