/*=========================================================================
 *
 *  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 "itkRandomImageSource.h"
#include "itkMedianImageFilter.h"
#include "itkTextOutput.h"
#include "itkSimpleFilterWatcher.h"

int
itkMedianImageFilterTest(int, char *[])
{
  // Comment the following if you want to use the itk text output window
  itk::OutputWindow::SetInstance(itk::TextOutput::New());


  using FloatImage2DType = itk::Image<float, 2>;

  const itk::RandomImageSource<FloatImage2DType>::Pointer random = itk::RandomImageSource<FloatImage2DType>::New();
  random->SetMin(0.0);
  random->SetMax(1000.0);

  FloatImage2DType::SizeValueType randomSize[2];
  randomSize[0] = randomSize[1] = 25;
  random->SetSize(randomSize);

  FloatImage2DType::SpacingValueType spacing[2] = { 0.7, 2.1 };
  random->SetSpacing(spacing);

  FloatImage2DType::PointValueType origin[2] = { 15, 400 };
  random->SetOrigin(origin);

  // Create a median image
  const itk::MedianImageFilter<FloatImage2DType, FloatImage2DType>::Pointer median =
    itk::MedianImageFilter<FloatImage2DType, FloatImage2DType>::New();
  median->SetInput(random->GetOutput());

  // define the neighborhood size used for the median filter (5x5)
  FloatImage2DType::SizeType neighRadius;
  neighRadius[0] = 5;
  neighRadius[1] = 5;
  median->SetRadius(neighRadius);

  const itk::SimpleFilterWatcher watcher(median, "To watch progress updates");
  // run the algorithm
  median->Update();


  // Test the itkGetConstReferenceMacro
  const FloatImage2DType::SizeType & radius = median->GetRadius();
  std::cout << "median->GetRadius():" << radius << std::endl;


  return EXIT_SUCCESS;
}
