[Insight-users] Re : Re : Re : needs a lot of recommandations

[John Drescher]

On Thu, Aug 20, 2009 at 9:43 AM, Syrine Sahmim<syrine.sahmim at yahoo.fr> wrote:
> i just want to say that it is the same code in the example directory i don't
> change anything in it and this problem exist with all examples that i tried
> before and i don't know why?
>

That was a slight bug in the code. The bug is that when you did not
supply the required 2 arguments that it did not exit. The fix for that
bug is here.

#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif

#ifdef __BORLANDC__
#define ITK_LEAN_AND_MEAN
#endif

// The example takes an image (say MRA image), computes the vesselness measure
// of the image using the HessianRecursiveGaussianImageFilter and the
// Hessian3DToVesselnessMeasureImageFilter. The goal is to detect bright tubular
// structures in the image.

#include "itkHessian3DToVesselnessMeasureImageFilter.h"
#include "itkHessianRecursiveGaussianImageFilter.h"
#include "itkSymmetricSecondRankTensor.h"
#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"

int main( int argc, char *argv[] )
{
  if( argc < 3 )
    {
    std::cerr << "Usage: inputImage outputImage [sigma] [alpha_1]
[alpha_2]" << std::endl;
	return EXIT_FAILURE;
    }

  const     unsigned int        Dimension       = 3;
  typedef   double              InputPixelType;
  typedef   float               OutputPixelType;

  typedef   itk::Image< InputPixelType, Dimension >   InputImageType;
  typedef   itk::Image< OutputPixelType, Dimension >  OutputImageType;

  typedef   itk::HessianRecursiveGaussianImageFilter<
                            InputImageType >              HessianFilterType;
  typedef   itk::Hessian3DToVesselnessMeasureImageFilter<
              OutputPixelType > VesselnessMeasureFilterType;
  typedef   itk::ImageFileReader< InputImageType >  ReaderType;
  typedef   itk::ImageFileWriter< OutputImageType > WriterType;

  HessianFilterType::Pointer hessianFilter = HessianFilterType::New();
  VesselnessMeasureFilterType::Pointer vesselnessFilter =
                            VesselnessMeasureFilterType::New();

  ReaderType::Pointer   reader = ReaderType::New();
  WriterType::Pointer   writer = WriterType::New();

  reader->SetFileName( argv[1] );
  hessianFilter->SetInput( reader->GetOutput() );
  if( argc >= 4 )
    {
    hessianFilter->SetSigma( static_cast< double >(atof(argv[3])) );
    }
  vesselnessFilter->SetInput( hessianFilter->GetOutput() );
  writer->SetInput( vesselnessFilter->GetOutput() );
  writer->SetFileName( argv[2] );
  if( argc >= 5 )
    {
    vesselnessFilter->SetAlpha1( static_cast< double >(atof(argv[4])));
    }
  if( argc >= 6 )
    {
    vesselnessFilter->SetAlpha2( static_cast< double >(atof(argv[5])));
    }

  writer->Update();
  return EXIT_SUCCESS;
}


Notice the only difference is return EXIT_FAILURE;

Okay at this point you need to supply at minimum 2 arguments to the
program. The two arguments are inputimage and outputimage.