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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkNrrdVectorImageReadTest.cxx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include <fstream>
#include "itkImageFileReader.h"
#include "itkImage.h"
#include "itkVector.h"
int itkNrrdVectorImageReadTest( int ac, char* av[] )
{
if(ac < 1)
{
std::cerr << "Usage: " << av[0] << " Input\n";
return EXIT_FAILURE;
}
typedef itk::Vector<float, 4> PixelType;
typedef itk::Image<PixelType, 3> myImage;
itk::ImageFileReader<myImage>::Pointer reader
= itk::ImageFileReader<myImage>::New();
reader->SetFileName(av[1]);
try
{
reader->Update();
}
catch (itk::ExceptionObject & e)
{
std::cerr << "exception in file reader " << std::endl;
std::cerr << e << std::endl;
return EXIT_FAILURE;
}
myImage::Pointer image = reader->GetOutput();
myImage::IndexType coord;
PixelType sample;
// The test image has been constructed so that the vector coefficients
// coincide with sample coordinates
double err = 0;
unsigned int idx = 0;
for (unsigned int zi=0; zi<5; zi++)
{
coord[2] = zi;
for (unsigned int yi=0; yi<5; yi++)
{
coord[1] = yi;
for (unsigned int xi=0; xi<5; xi++)
{
coord[0] = xi;
sample = image->GetPixel(coord);
err += vcl_fabs(sample[0] - coord[0]);
err += vcl_fabs(sample[1] - coord[1]);
err += vcl_fabs(sample[2] - coord[2]);
err += vcl_fabs(sample[3] - idx);
idx++;
}
}
}
if (err)
{
std::cout << "test FAILED because values not as expected\n";
return EXIT_FAILURE;
}
else
{
return EXIT_SUCCESS;
}
}
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