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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include <fstream>
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkMetaImageIO.h"
#define SPECIFIC_IMAGEIO_MODULE_TEST
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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