text: /*=========================================================================
   *
   *  Copyright Insight Software Consortium
   *
   *  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
   *
   *         http://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 "itkBinaryThresholdImageFilter.h"
  #include "itkImageFileReader.h"
  #include "itkImageFileWriter.h"
  #include "itkVotingBinaryHoleFillingImageFilter.h"
  #include "itkTextOutput.h"
  #include "itkTestingMacros.h"
  
  
  int itkVotingBinaryHoleFillingImageFilterTest( int argc, char* argv[] )
  {
  
    if ( argc != 3 )
    {
      std::cerr << "Missing arguments" << std::endl;
      std::cerr << "Usage: " << argv[0] << " Inputimage OutputImage" << std::endl;
      return EXIT_FAILURE;
    }
  
    // Define the dimension of the images
    const unsigned int Dimension = 2;
  
    // Declare the pixel types of the images
    typedef unsigned short                            InputPixelType;
    typedef unsigned char                             OutputPixelType;
    typedef itk::Image< InputPixelType, Dimension >   InputImageType;
    typedef itk::Image< OutputPixelType, Dimension >  OutputImageType;
    typedef itk::ImageFileReader< InputImageType >    ReaderType;
    typedef itk::ImageFileWriter< OutputImageType >   WriterType;
  
    ReaderType::Pointer reader = ReaderType::New();
    reader->SetFileName( argv[1] );
  
    TRY_EXPECT_NO_EXCEPTION( reader->Update() );
  
    InputImageType::PixelType foreground = 97; // Prime numbers are good testers
    InputImageType::PixelType background = 29;
  
    itk::BinaryThresholdImageFilter< InputImageType, InputImageType >::Pointer thresholder =
      itk::BinaryThresholdImageFilter< InputImageType, InputImageType >::New();
  
    thresholder->SetInput( reader->GetOutput() );
    thresholder->SetLowerThreshold(  30 );
    thresholder->SetUpperThreshold( 100 );
    thresholder->SetInsideValue( foreground );
    thresholder->SetOutsideValue( background );
  
    // Define the voting binary hole filling filter
    typedef itk::VotingBinaryHoleFillingImageFilter< InputImageType, OutputImageType >
      VotingBinaryHoleFillingImageFilterType;
  
    VotingBinaryHoleFillingImageFilterType::Pointer voting =
      VotingBinaryHoleFillingImageFilterType::New();
  
    EXERCISE_BASIC_OBJECT_METHODS( voting, VotingBinaryHoleFillingImageFilter,
      VotingBinaryImageFilter );
  
    // Define the neighborhood size used for the voting filter (3x3)
    InputImageType::SizeType neighRadius;
    neighRadius[0] = 1;
    neighRadius[1] = 1;
    voting->SetRadius( neighRadius );
  
    // Set the number of pixels over 50% that will tip the decision about
    // switching a pixel
    unsigned int majorityThreshold = 1;
    voting->SetMajorityThreshold( majorityThreshold );
    TEST_SET_GET_VALUE( majorityThreshold, voting->GetMajorityThreshold() );
  
    voting->SetForegroundValue( foreground );
    voting->SetBackgroundValue( background );
  
    voting->SetInput( thresholder->GetOutput());
  
    // Execute the filter
    TRY_EXPECT_NO_EXCEPTION( voting->Update() );
  
  
    std::cout << "Number of pixels changed: "
      << voting->GetNumberOfPixelsChanged() << std::endl;
  
    WriterType::Pointer writer = WriterType::New();
    writer->SetInput( voting->GetOutput() );
    writer->SetFileName( argv[2] );
  
    TRY_EXPECT_NO_EXCEPTION( writer->Update() );
  
  
    std::cout << "Test finished" << std::endl;
    return EXIT_SUCCESS;
  }
  