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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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"
#include "itkTestingMacros.h"
// Specific ImageIO test
int
itkMetaImageIOTest(int argc, char * argv[])
{
if (argc < 3)
{
std::cerr << "Missing Parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " Input Output [expectFailureReadingInputFile]"
<< std::endl;
return EXIT_FAILURE;
}
// ATTENTION THIS IS THE PIXEL TYPE FOR
// THE RESULTING IMAGE
using PixelType = unsigned short;
using myImage = itk::Image<PixelType, 3>;
itk::ImageFileReader<myImage>::Pointer reader = itk::ImageFileReader<myImage>::New();
// Force use of MetaIO
using IOType = itk::MetaImageIO;
auto metaIn = IOType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(metaIn, MetaImageIO, ImageIOBase);
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);
ITK_TEST_SET_GET_VALUE(subSamplingFactor, metaIn->GetSubSamplingFactor());
metaIn->SetSubSamplingFactor(origSubSamplingFactor);
// Read the file
reader->SetFileName(argv[1]);
auto expectFailureReadingInputFile = false;
if (argc > 3)
{
expectFailureReadingInputFile = static_cast<bool>(std::stoi(argv[3]));
}
if (expectFailureReadingInputFile)
{
ITK_TRY_EXPECT_EXCEPTION(reader->Update());
return EXIT_SUCCESS;
}
else
{
ITK_TRY_EXPECT_NO_EXCEPTION(reader->Update());
}
myImage::Pointer image = reader->GetOutput();
image->Print(std::cout);
// MetaImage is expected to have a modality tag
image->GetMetaDataDictionary().Get("Modality");
myImage::RegionType region = image->GetLargestPossibleRegion();
std::cout << "region " << region;
// Generate test image
itk::ImageFileWriter<myImage>::Pointer writer;
writer = itk::ImageFileWriter<myImage>::New();
auto metaOut = IOType::New();
writer->SetImageIO(metaOut);
writer->SetInput(reader->GetOutput());
writer->SetFileName(argv[2]);
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
std::cout << "Test finished." << std::endl;
return EXIT_SUCCESS;
}
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