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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 "itkTestingComparisonImageFilter.h"
#include "itkExtractImageFilter.h"
#include "itkPipelineMonitorImageFilter.h"
#include "itkTestingMacros.h"
using PixelType = unsigned char;
using ImageType = itk::Image<PixelType, 3>;
using ImagePointer = ImageType::Pointer;
bool
SameImage(ImagePointer testImage, ImagePointer baselineImage)
{
PixelType intensityTolerance = 0;
int radiusTolerance = 0;
unsigned long numberOfPixelTolerance = 0;
using DiffType = itk::Testing::ComparisonImageFilter<ImageType, ImageType>;
auto diff = DiffType::New();
diff->SetValidInput(baselineImage);
diff->SetTestInput(testImage);
diff->SetDifferenceThreshold(intensityTolerance);
diff->SetToleranceRadius(radiusTolerance);
diff->UpdateLargestPossibleRegion();
unsigned long status = diff->GetNumberOfPixelsWithDifferences();
if (status > numberOfPixelTolerance)
{
return false;
}
return true;
}
int
itkImageFileWriterPastingTest2(int argc, char * argv[])
{
if (argc < 3)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv);
std::cerr << " input output [existingFile]" << std::endl;
return EXIT_FAILURE;
}
// We remove the output file
if (argc == 3)
{
itksys::SystemTools::RemoveFile(argv[2]);
}
else
{
// copy this file to over write
itksys::SystemTools::CopyAFile(argv[3], argv[2]);
}
using ReaderType = itk::ImageFileReader<ImageType>;
using WriterType = itk::ImageFileWriter<ImageType>;
auto reader = ReaderType::New();
reader->SetFileName(argv[1]);
reader->SetUseStreaming(true);
// We decide how we want to read the image and we split accordingly
// The image is read slice by slice
reader->UpdateOutputInformation();
ImageType::RegionType largestRegion;
largestRegion = reader->GetOutput()->GetLargestPossibleRegion().GetSize();
ImageType::IndexType pasteIndex;
pasteIndex[0] = largestRegion.GetIndex()[0] + largestRegion.GetSize()[0] / 3;
pasteIndex[1] = largestRegion.GetIndex()[1] + largestRegion.GetSize()[1] / 3;
pasteIndex[2] = largestRegion.GetIndex()[2] + largestRegion.GetSize()[2] / 3;
ImageType::SizeType pasteSize;
pasteSize[0] = largestRegion.GetSize()[0] / 3;
pasteSize[1] = largestRegion.GetSize()[1] / 3;
pasteSize[2] = largestRegion.GetSize()[2] / 3;
ImageType::RegionType pasteRegion(pasteIndex, pasteSize);
using MonitorFilter = itk::PipelineMonitorImageFilter<ImageType>;
auto monitor = MonitorFilter::New();
monitor->SetInput(reader->GetOutput());
// Setup the writer
auto writer = WriterType::New();
writer->SetFileName(argv[2]);
writer->SetInput(monitor->GetOutput());
// create a vaild region from the largest
itk::ImageIORegion ioregion(3);
itk::ImageIORegion::IndexType index;
index.push_back(pasteIndex[0]);
index.push_back(pasteIndex[1]);
index.push_back(pasteIndex[2]);
ioregion.SetIndex(index);
itk::ImageIORegion::SizeType size;
size.push_back(pasteSize[0]);
size.push_back(pasteSize[1]);
size.push_back(pasteSize[2]);
ioregion.SetSize(size);
writer->SetIORegion(ioregion);
try
{
writer->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cerr << "ExceptionObject caught !" << std::endl;
std::cerr << err << std::endl;
if (argc > 3)
{
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
// check that the pipeline executed as expected
if (monitor->GetNumberOfUpdates() != 1)
{
std::cerr << "pipeline did not execute as expected" << std::endl;
std::cout << monitor;
return EXIT_FAILURE;
}
using ExtractImageFilterType = itk::ExtractImageFilter<ImageType, ImageType>;
auto extractBaselineImage = ExtractImageFilterType::New();
extractBaselineImage->SetDirectionCollapseToSubmatrix();
extractBaselineImage->SetInput(reader->GetOutput());
extractBaselineImage->SetExtractionRegion(pasteRegion);
auto readerTestImage = ReaderType::New();
readerTestImage->SetFileName(argv[2]);
auto extractTestImage = ExtractImageFilterType::New();
extractTestImage->SetDirectionCollapseToSubmatrix();
extractTestImage->SetInput(readerTestImage->GetOutput());
extractTestImage->SetExtractionRegion(pasteRegion);
if (!SameImage(extractTestImage->GetOutput(), extractBaselineImage->GetOutput()))
{
std::cerr << "input paste and output paste regions don't match!\n";
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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