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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 "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "itkSobelEdgeDetectionImageFilter.h"
#include "itkTestingMacros.h"
int
itkSobelEdgeDetectionImageFilterTest(int argc, char * argv[])
{
if (argc != 3)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " inputFilename outputFilename" << std::endl;
return EXIT_FAILURE;
}
constexpr unsigned int Dimension = 2;
using InputPixelType = unsigned char;
using OutputPixelType = float;
using InputImageType = itk::Image<InputPixelType, Dimension>;
using OutputImageType = itk::Image<OutputPixelType, Dimension>;
itk::SobelEdgeDetectionImageFilter<InputImageType, OutputImageType>::Pointer filter =
itk::SobelEdgeDetectionImageFilter<InputImageType, OutputImageType>::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(filter, SobelEdgeDetectionImageFilter, ImageToImageFilter);
InputImageType::Pointer inputImagePtr;
ITK_TRY_EXPECT_NO_EXCEPTION(inputImagePtr = itk::ReadImage<InputImageType>(argv[1]));
filter->SetInput(inputImagePtr);
ITK_TRY_EXPECT_NO_EXCEPTION(filter->Update());
using RescaleIntensityImageFilterFilterType = itk::RescaleIntensityImageFilter<OutputImageType, InputImageType>;
auto rescaler = RescaleIntensityImageFilterFilterType::New();
rescaler->SetInput(filter->GetOutput());
ITK_TRY_EXPECT_NO_EXCEPTION(itk::WriteImage(rescaler->GetOutput(), argv[2]));
std::cout << "Test finished." << std::endl;
return EXIT_SUCCESS;
}
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