#include "itkGaborImageSource.h"
#include "itkImageFileWriter.h"

int itkGaborImageSourceTest0( int argc, char *argv[] )
{
  typedef float PixelType;
  const unsigned int ImageDimension = 2;
  typedef itk::Image<PixelType, ImageDimension> ImageType;   

  // Instantiate the filter
  typedef itk::GaborImageSource<ImageType> GaborSourceType;
  GaborSourceType::Pointer gaborImage = GaborSourceType::New();

  GaborSourceType::ArrayType sigma;
  sigma[0] = 2.0;
  sigma[1] = 5.0;

  ImageType::SpacingType spacing;  
  spacing.Fill( 0.25 );
  ImageType::SizeType size;  
  size.Fill( 64*4 );
  
  gaborImage->SetSpacing( spacing );
  gaborImage->SetSize( size );

  gaborImage->SetSigma( sigma );
  gaborImage->SetFrequency( 0.1 );
  gaborImage->SetCalculateImaginaryPart( false );
  
  try
    {
    gaborImage->Update();
    }
  catch (itk::ExceptionObject & err)
    { 
    std::cout << "ExceptionObject caught !" << std::endl; 
    std::cout << err << std::endl; 
    return EXIT_FAILURE;
    }

  typedef itk::ImageFileWriter<ImageType> WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName( argv[1] );
  writer->SetInput( gaborImage->GetOutput() );
  writer->Update();

  return EXIT_SUCCESS;
}

int itkGaborImageSourceTest1( int argc, char *argv[] )
{
  typedef float PixelType;
  const unsigned int ImageDimension = 3;
  typedef itk::Image<PixelType, ImageDimension> ImageType;   

  // Instantiate the filter
  typedef itk::GaborImageSource<ImageType> GaborSourceType;
  GaborSourceType::Pointer gaborImage = GaborSourceType::New();

  GaborSourceType::ArrayType sigma;
  sigma[0] = 2.0;
  sigma[1] = 10.0;
  sigma[2] = 10.0;

  ImageType::SpacingType spacing;  
  spacing.Fill( 0.5 );
  ImageType::SizeType size;  
  size.Fill( 64*2 );
  
  gaborImage->SetSpacing( spacing );
  gaborImage->SetSize( size );

  gaborImage->SetSigma( sigma );
  gaborImage->SetFrequency( 0.1 );
  gaborImage->SetCalculateImaginaryPart( true );
  
  try
    {
    gaborImage->Update();
    }
  catch (itk::ExceptionObject & err)
    { 
    std::cout << "ExceptionObject caught !" << std::endl; 
    std::cout << err << std::endl; 
    return EXIT_FAILURE;
    }

  typedef itk::ImageFileWriter<ImageType> WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName( argv[1] );
  writer->SetInput( gaborImage->GetOutput() );
  writer->Update();

  return EXIT_SUCCESS;
}


int main( int argc, char *argv[] )
{
  if ( argc < 3 )
    {
    std::cout << "Usage: " << argv[0] << " outputImage whichTest" << std::endl;
    return EXIT_FAILURE;
    }
    
  int test = EXIT_FAILURE;  
  if ( atoi( argv[2] ) == 0 )
    {
    test = itkGaborImageSourceTest0( argc, argv );
    }
  else
    {
    test = itkGaborImageSourceTest1( argc, argv );
    }

  return test;  
}