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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.
*
*=========================================================================*/
/*=========================================================================
*
* Portions of this file are subject to the VTK Toolkit Version 3 copyright.
*
* Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
*
* For complete copyright, license and disclaimer of warranty information
* please refer to the NOTICE file at the top of the ITK source tree.
*
*=========================================================================*/
#include <iostream>
#include "itkBSplineDownsampleImageFilter.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkSimpleFilterWatcher.h"
#include "itkTestingMacros.h"
int
itkBSplineDownsampleImageFilterTest(int argc, char * argv[])
{
if (argc < 4)
{
std::cerr << "Error: Missing arguments" << std::endl;
std::cerr << "Usage: " << std::endl;
std::cerr << itkNameOfTestExecutableMacro(argv) << "inputImage outputImage splineOrder" << std::endl;
return EXIT_FAILURE;
}
using PixelType = unsigned char;
constexpr unsigned int Dimension = 3;
using ImageType = itk::Image<PixelType, Dimension>;
using DownsamplerFilterType = itk::BSplineDownsampleImageFilter<ImageType, ImageType>;
auto filter = DownsamplerFilterType::New();
itk::SimpleFilterWatcher watcher(filter, "BSplineDownsampleImageFilter");
using ReaderType = itk::ImageFileReader<ImageType>;
auto reader = ReaderType::New();
using WriterType = itk::ImageFileWriter<ImageType>;
auto writer = WriterType::New();
reader->SetFileName(argv[1]);
writer->SetFileName(argv[2]);
const unsigned int splineOrder = std::stoi(argv[3]);
filter->SetSplineOrder(splineOrder);
filter->SetInput(reader->GetOutput());
writer->SetInput(filter->GetOutput());
try
{
writer->Update();
}
catch (const itk::ExceptionObject & excp)
{
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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