[Insight-users] Graft error: cannot cast: is it a mini pipeline problem?

Richard Beare richard.beare at gmail.com
Sat Jul 25 06:44:47 EDT 2009


The error seems to be coming from the HMinima filter (determined by
updating each filter in your pipeline individually and asking the
debugger where the crash happens), but I can't see any obvious problem
with it. Perhaps there is some problem with reconstruction by erosion
filter, used by the HMinima filter.


On Sat, Jul 25, 2009 at 5:38 PM, <lynx.abraxas at freenet.de> wrote:
> Hello!
>
>
> Looking  at the other threads about Graft() I wonder if my "cannot cast" error
> has something to do with some minipipeline somewhere in the filters I use.  As
> far  as  I  understand  MorphologicalWatershedImageFilter  has a mini pipeline
> where as MorphologicalWatershedFromMarkersImageFilter has not.
> Another idea I have: Could the filters I connect in my program  be  the  wrong
> ones  and they don't fit to each other? Contrary they are pretty much the same
> as in segGel.cxx (from the watershed insight publication).
> How can I find out what PKN3itk10DataObjectE and  PKN3itk5ImageIsLj2EEE  stand
> for?
>
> Many thanks for any hints or help
> Lynx
>
> On 23/07/09 23:31:21, lynx.abraxas at freenet.de wrote:
>> Hello!
>>
>>
>> I've written the little test program below but it only works if I use MorphologicalWatershedImageFilter directly but not if I use MorphologicalWatershedFromMarkersImageFilter and hm, rm and cc as discribed in the publication. I used segGel.cxx as an example.
>> What is wrong with my test in long form?
>> What is causing:
>> terminate called after throwing an instance of 'itk::ExceptionObject'
>>   what():  /usr/local/include/InsightToolkit/Common/itkImage.txx:135:
>> itk::ERROR: Image(0x85dd268): itk::Image::Graft() cannot cast PKN3itk10DataObjectE to PKN3itk5ImageIsLj2EEE
>>
>> Many thanks for any hints or help
>> Lynx
>>
>>
>>
>>
>> #include <iostream>
>> #include "itkSignedDanielssonDistanceMapImageFilter.h"
>> #include "itkWatershedImageFilter.h"
>> #include "itkMorphologicalWatershedImageFilter.h"
>> #include "itkMorphologicalWatershedFromMarkersImageFilter.h"
>> #include "itkMaskImageFilter.h"
>> #include "itkRegionalMinimaImageFilter.h"
>> #include "itkHMinimaImageFilter.h"
>> #include "itkConnectedComponentImageFilter.h"
>>
>> //#include "itkImage.h"
>> #include "itkImageFileReader.h"
>> #include "itkImageFileWriter.h"
>> #include "itkRescaleIntensityImageFilter.h"
>> #include "itkInvertIntensityImageFilter.h"
>> #include "itkScalarToRGBPixelFunctor.h"
>> #include "itkUnaryFunctorImageFilter.h"
>> #include "itkLabelOverlayImageFilter.h"
>>
>>
>> int main( int argc, char * argv[] )
>> {
>>   if( argc < 3 )
>>     {
>>     std::cerr << "Usage: " << argv[0];
>>     std::cerr << " inputImageFile outputDistanceMapImageFile ";
>>     std::cerr << " outputVoronoiMapImageFile ";
>>     std::cerr << std::endl;
>>     return EXIT_FAILURE;
>>     }
>>
>>   typedef  unsigned char   InputPixelType;
>>   //typedef  float          FilterPixelType;
>>   typedef  signed short SDDMPType; // has to support negative values!
>>   typedef  unsigned char  OutputPixelType;
>>   const unsigned int Dimension = 2;
>>
>>   typedef itk::Image<InputPixelType,  Dimension>   InputImageType;
>>   typedef itk::Image<SDDMPType,  Dimension>   SDDMIType;
>>   typedef itk::Image<OutputPixelType, Dimension>   OutputImageType;
>>
>>   typedef itk::ImageFileReader<InputImageType>  ReaderType;
>>   typedef itk::ImageFileWriter<OutputImageType>  WriterType;
>>
>>   ReaderType::Pointer reader = ReaderType::New();
>>   WriterType::Pointer writer = WriterType::New();
>>
>>   reader->SetFileName(argv[1]);
>>
>>
>>
>>   typedef itk::SignedDanielssonDistanceMapImageFilter<InputImageType,  SDDMIType>  FilterType;
>>
>>   FilterType::Pointer sddm = FilterType::New();
>>   sddm->SetSquaredDistance(true);
>>   FilterType::Pointer sddm2 = FilterType::New();
>>   sddm2->SetSquaredDistance(true);
>>
>>
>>   typedef itk::HMinimaImageFilter<SDDMIType, OutputImageType> HMType;
>>   HMType::Pointer hm= HMType::New();
>>   hm->SetHeight(atoi(argv[5]));
>>   HMType::Pointer hm2= HMType::New();
>>   hm2->SetHeight(atoi(argv[5]));
>>
>>
>>   typedef itk::RegionalMinimaImageFilter<OutputImageType, OutputImageType> RegMinType;
>>   RegMinType::Pointer rm = RegMinType::New();
>>   rm->SetFullyConnected(atoi(argv[6]));
>>   RegMinType::Pointer rm2 = RegMinType::New();
>>   rm2->SetFullyConnected(atoi(argv[6]));
>>
>>
>>   typedef itk::ConnectedComponentImageFilter<OutputImageType, OutputImageType> LabelType;
>>   LabelType::Pointer cc = LabelType::New();
>>   cc->SetFullyConnected(atoi(argv[6]));
>>
>>
>>   typedef itk::MorphologicalWatershedFromMarkersImageFilter<SDDMIType, OutputImageType> MWatershedType;
>> //  typedef itk::MorphologicalWatershedImageFilter<SDDMIType, OutputImageType> MWatershedType;
>>   MWatershedType::Pointer ws = MWatershedType::New();
>>   ws->SetMarkWatershedLine(true);
>>   ws->SetFullyConnected(atoi(argv[6]));
>>
>>
>>   typedef itk::MaskImageFilter<OutputImageType, InputImageType, OutputImageType> MaskType;
>>   MaskType::Pointer mask = MaskType::New();
>>   mask->SetInput(1, reader->GetOutput());
>>
>>   typedef itk::RGBPixel<unsigned char>   RGBPixelType;
>>   typedef itk::Image<RGBPixelType, Dimension>    RGBImageType;
>>   typedef itk::Image<unsigned long, Dimension>   LabeledImageType;
>>
>>   typedef itk::Functor::ScalarToRGBPixelFunctor<OutputPixelType> ColorMapFunctorType_v;
>>   typedef itk::UnaryFunctorImageFilter<OutputImageType, RGBImageType, ColorMapFunctorType_v> ColorMapFilterType_v;
>>   ColorMapFilterType_v::Pointer colormapper_v = ColorMapFilterType_v::New();
>>
>>   typedef itk::Functor::ScalarToRGBPixelFunctor<unsigned long> ColorMapFunctorType;
>>   typedef itk::UnaryFunctorImageFilter<LabeledImageType, RGBImageType, ColorMapFunctorType> ColorMapFilterType;
>>   ColorMapFilterType::Pointer colormapper = ColorMapFilterType::New();
>>
>>   typedef itk::ImageFileWriter<RGBImageType> RGBFileWriterType;
>>   RGBFileWriterType::Pointer writer_rgb = RGBFileWriterType::New();
>>
>>
>>   typedef itk::LabelOverlayImageFilter<SDDMIType, OutputImageType, RGBImageType > OverlayType;
>>   OverlayType::Pointer overlay = OverlayType::New();
>>
>>
>>
>>
>> /////distmap
>>   std::cout << "signed danielson distance map..." << std::endl;
>>   sddm->SetInput(reader->GetOutput());
>>
>>
>>
>> ////Watershed
>>   std::cout << "Morphological watershed..." << std::endl;
>>   const char * watershedFileName = argv[4];
>>
>>  hm->SetInput(sddm->GetOutput());
>>  rm->SetInput(hm->GetOutput());
>>  cc->SetInput(rm->GetOutput());
>>
>> //  ws->SetInput(sddm->GetOutput());
>>   ws->SetMarkerImage(cc->GetOutput());
>>
>>   std::cout << "Creating first pre-output..." << std::endl;
>>   writer->SetFileName(argv[2]);
>>   writer->SetInput(rm->GetOutput());
>>   writer->Update();
>>
>>   std::cout << "Creating second pre-output..." << std::endl;
>>   writer->SetFileName(argv[3]);
>>   writer->SetInput(cc->GetOutput());
>>   writer->Update();
>>
>>   std::cout << "Creating nice output..." << std::endl;
>>   mask->SetInput(0, ws->GetOutput());
>>   //writer->SetInput(mask->GetOutput());
>>   colormapper_v->SetInput(mask->GetOutput());
>>   writer_rgb->SetInput(colormapper_v->GetOutput());
>>   writer_rgb->SetFileName(watershedFileName);
>>
>>   try
>>     {
>>     writer_rgb->Update();
>>     }
>>   catch( itk::ExceptionObject exp )
>>     {
>>     std::cerr << "Exception caught !" << std::endl;
>>     std::cerr <<     exp    << std::endl;
>>     }
>>
>>
>>   return EXIT_SUCCESS;
>> }
>>
>>
>>
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