[Insight-users] Problems using CastImageFilter with itk::DeformableMesh3DFilter::GradientImageType

[Th. Boettger]

Hallo everybody,

I just want t convert an Image of Type
itk::DeformableMesh3DFilter::GradientImageType to another format, for
instance an image consisting of unsigned short values. I'm trying to use the
itk::CastImageFilter in the following way:

	// mesh definition
	typedef	itk::DefaultStaticMeshTraits<double, 3, 3, double,double,double>
MeshTraits;
	typedef itk::Mesh<double,3,MeshTraits> InputMeshType;
	typedef itk::Mesh<float, 3, itk::DefaultStaticMeshTraits< float, 3, 3,
float, float > > MeshType;

	// deform filter def
	typedef itk::DeformableMesh3DFilter<InputMeshType,InputMeshType>
Deformable3DFilterType;

	// img type def
	typedef Deformable3DFilterType::GradientImageType					GradientImageType;
	typedef itk::Image<unsigned short,3>							OriginalImageType;

	// cast filter def
	typedef itk::CastImageFilter< GradientImageType, OriginalImageType>
OriginalCastFilterType;


	OriginalCastFilterType::Pointer originalCastFilter =
OriginalCastFilterType::New();


The compiler says:

:\home\boettger\Insight\Code\BasicFilters\itkCastImageFilter.h(46) : error
C2440: 'static_cast' : cannot convert from 'const
itk::Image<TPixel,VImageDimension>::PixelType' to
'itk::Image<TPixel,VImageDimension>::PixelType'
        with
        [

TPixel=itk::DeformableMesh3DFilter<InputMeshType,InputMeshType>::GradientTyp
e,
            VImageDimension=3
        ]
        and
        [
            TPixel=unsigned short,
            VImageDimension=3
        ]
        No user-defined-conversion operator available that can perform this
conversion, or the operator cannot be called
        c:\home\boettger\Insight\Code\BasicFilters\itkCastImageFilter.h(45)
: while compiling class-template member function
'itk::Image<TPixel,VImageDimension>::PixelType
itk::Functor::Cast<TInput,TOutput>::operator ()(const TInput &)'
        with
        [
            TPixel=unsigned short,
            VImageDimension=3,

TInput=itk::Image<itk::DeformableMesh3DFilter<InputMeshType,InputMeshType>::
GradientType,3>::PixelType,
            TOutput=itk::Image<unsigned short,3>::PixelType
        ]

c:\home\boettger\Insight\Code\BasicFilters\itkUnaryFunctorImageFilter.h(102)
: see reference to class template instantiation
'itk::Functor::Cast<TInput,TOutput>' being compiled
        with
        [

TInput=itk::Image<itk::DeformableMesh3DFilter<InputMeshType,InputMeshType>::
GradientType,3>::PixelType,
            TOutput=itk::Image<unsigned short,3>::PixelType
        ]
        c:\home\boettger\Insight\Code\BasicFilters\itkCastImageFilter.h(58)
: see reference to class template instantiation
'itk::UnaryFunctorImageFilter<TInputImage,TOutputImage,TFunction>' being
compiled
        with
        [
            TInputImage=GradientImageType,
            TOutputImage=OriginalImageType,

TFunction=itk::Functor::Cast<itk::Image<itk::DeformableMesh3DFilter<InputMes
hType,InputMeshType>::GradientType,3>::PixelType,itk::Image<unsigned
short,3>::PixelType>
        ]
        main.cpp(448) : see reference to class template instantiation
'itk::CastImageFilter<TInputImage,TOutputImage>' being compiled
        with
        [
            TInputImage=GradientImageType,
            TOutputImage=OriginalImageType
        ]




Could anyone please help me?

Thanks,
Thomas








---
Dipl.-Inform. Thomas Boettger
Deutsches Krebsforschungszentrum         (German Cancer Research Center)
Div. Medical and Biological Informatics H0100    Tel: (+49) 6221-42 2328
Im Neuenheimer Feld 280                          Fax: (+49) 6221-42 2345
D-69120 Heidelberg                            e-mail: t.boettger@dkfz.de
Germany                      http://www.dkfz.de/mbi/people/thomasb.shtml