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 "itkImageFileReader.h"
  #include "itkImageFileWriter.h"
  #include "itkSimpleFilterWatcher.h"
  #include "itkGPUBinaryErodeImageFilter.h"
  #include "itkBinaryBallStructuringElement.h"
  #include "itkGPUImage.h"
  
  int itkGPUBinaryErodeImageFilterTest3(int argc, char * argv[])
  {
    if( argc < 7 )
      {
      std::cerr << "Missing Parameters " << std::endl;
      std::cerr << "Usage: " << argv[0];
      std::cerr << " InputImage OutputImage Foreground Background BoundaryToForeground Radius" << std::endl;
      return EXIT_FAILURE;
      }
    const int dim = 2;
  
    typedef unsigned char            PType;
    typedef itk::GPUImage< PType, dim > IType;
  
    typedef itk::ImageFileReader< IType > ReaderType;
    ReaderType::Pointer reader = ReaderType::New();
    reader->SetFileName( argv[1] );
  
    typedef itk::BinaryBallStructuringElement< PType, dim > SRType;
    SRType kernel;
    kernel.SetRadius( atoi(argv[6]) );
    kernel.CreateStructuringElement();
  
    typedef itk::GPUBinaryErodeImageFilter< IType, IType, SRType > FilterType;
    FilterType::Pointer filter = FilterType::New();
    filter->SetInput( reader->GetOutput() );
    filter->SetKernel( kernel );
  
    // test default values
    if ( filter->GetBackgroundValue( ) != itk::NumericTraits< PType >::NonpositiveMin() )
      {
      std::cerr << "Wrong default background value." << std::endl;
      return EXIT_FAILURE;
      }
    if ( filter->GetForegroundValue( ) != itk::NumericTraits< PType >::max() )
      {
      std::cerr << "Wrong default foreground value." << std::endl;
      return EXIT_FAILURE;
      }
    if ( filter->GetErodeValue( ) != itk::NumericTraits< PType >::max() )
      {
      std::cerr << "Wrong default erode value." << std::endl;
      return EXIT_FAILURE;
      }
    if ( filter->GetBoundaryToForeground( ) != true )
      {
      std::cerr << "Wrong default BoundaryToForeground value." << std::endl;
      return EXIT_FAILURE;
      }
  
    //Exercise Set/Get methods for Background Value
    filter->SetForegroundValue( atoi(argv[3]) );
    if ( filter->GetForegroundValue( ) != atoi(argv[3]) )
      {
      std::cerr << "Set/Get Foreground value problem." << std::endl;
      return EXIT_FAILURE;
      }
  
    // the same with the alias
    filter->SetErodeValue( atoi(argv[3]) );
    if ( filter->GetErodeValue( ) != atoi(argv[3]) )
      {
      std::cerr << "Set/Get Erode value problem." << std::endl;
      return EXIT_FAILURE;
      }
  
    filter->SetBackgroundValue( atoi(argv[4]) );
    if ( filter->GetBackgroundValue( ) != atoi(argv[4]) )
      {
      std::cerr << "Set/Get Background value problem." << std::endl;
      return EXIT_FAILURE;
      }
  
    filter->SetBoundaryToForeground( atoi(argv[5]) );
    if ( filter->GetBoundaryToForeground( ) != (bool)atoi(argv[5]) )
      {
      std::cerr << "Set/Get BoundaryToForeground value problem." << std::endl;
      return EXIT_FAILURE;
      }
  
    itk::SimpleFilterWatcher watcher(filter, "filter");
  
    typedef itk::ImageFileWriter< IType > WriterType;
    WriterType::Pointer writer = WriterType::New();
    writer->SetInput( filter->GetOutput() );
    writer->SetFileName( argv[2] );
  
    try
      {
      writer->Update();
      }
    catch ( itk::ExceptionObject & excp )
      {
      std::cerr << excp << std::endl;
      return EXIT_FAILURE;
      }
  
    return EXIT_SUCCESS;
  
  }
  