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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkMetaImageIOTest.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 "itkImageFileWriter.h"
#include "itkImage.h"
#include "itkMetaImageIO.h"
int itkMetaImageIOTest(int ac, char* av[])
{
if(ac < 3)
{
std::cerr << "Usage: " << av[0] << " Input Output [ShouldFail]\n";
return EXIT_FAILURE;
}
// ATTENTION THIS IS THE PIXEL TYPE FOR
// THE RESULTING IMAGE
typedef unsigned short PixelType;
typedef itk::Image<PixelType, 3> myImage;
itk::ImageFileReader<myImage>::Pointer reader
= itk::ImageFileReader<myImage>::New();
// force use of MetaIO
typedef itk::MetaImageIO IOType;
IOType::Pointer metaIn = IOType::New();
metaIn->SetDoublePrecision(8); // Set manually for coverage
reader->SetImageIO(metaIn);
// check usability of dimension (for coverage)
if (!metaIn->SupportsDimension(3))
{
std::cerr << "Did not support dimension 3" << std::endl;
return EXIT_FAILURE;
}
// test subsampling factor (change it then change it back)
unsigned int origSubSamplingFactor = metaIn->GetSubSamplingFactor();
unsigned int subSamplingFactor = 2;
metaIn->SetSubSamplingFactor(subSamplingFactor);
if (metaIn->GetSubSamplingFactor() != subSamplingFactor)
{
std::cerr << "Did not set/get Sub Sampling factor correctly" << std::endl;
return EXIT_FAILURE;
}
metaIn->SetSubSamplingFactor(origSubSamplingFactor);
// read the file
reader->SetFileName(av[1]);
try
{
reader->Update();
}
catch (itk::ExceptionObject & e)
{
std::cerr << "exception in file reader " << std::endl;
std::cerr << e << std::endl;
if(ac == 3) // should fail
{
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
myImage::Pointer image = reader->GetOutput();
image->Print(std::cout );
myImage::RegionType region = image->GetLargestPossibleRegion();
std::cout << "region " << region;
// Generate test image
itk::ImageFileWriter<myImage>::Pointer writer;
writer = itk::ImageFileWriter<myImage>::New();
IOType::Pointer metaOut = IOType::New();
writer->SetImageIO(metaOut);
writer->SetInput( reader->GetOutput() );
writer->SetFileName( av[2] );
writer->Update();
return EXIT_SUCCESS;
}
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