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#1 sassou

sassou

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Posted 20 August 2009 - 11:05 AM

I need that someone help me and comment the following code to me exactly. even i learned many tutorials of c++ but i still need help because it's so complicated to me. all i want that some one explain to me with comments every step.thanks for your help
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif

#ifdef __BORLANDC__
#define ITK_LEAN_AND_MEAN
#endif
#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;
}

Thanks again

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#2 Billy O'Neal

Billy O'Neal

    Visual C++ STL Maintainer


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Posted 20 August 2009 - 11:17 AM

1. That code depends on external libraries we do not have. If you ask questions about libraries, you have to include them.
2. We do not do homework.

You need to start with a simpler example anyway before jumping into a rats nest of code.....

Billy3
Twitter - My statements do not establish the official position of Microsoft Corporation, and are my own personal opinion. (But you already knew that, right?)
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