// =========================================================================
// @author Leonardo Florez Valencia
// @email florez-l@javeriana.edu.co
// =========================================================================

#include <itkImage.h>
#include <itkImageFileReader.h>
#include <itkImageFileWriter.h>
#include <fpa/Filters/Image/Mori.h>

// -------------------------------------------------------------------------
const unsigned int Dim = 2;
typedef unsigned char TPixel;
typedef itk::Image< TPixel, Dim > TImage;

// -------------------------------------------------------------------------
int main( int argc, char* argv[] )
{
  // Get arguments
  if( argc < 9 + Dim )
  {
    std::cerr
      << "Usage: " << argv[ 0 ]
      << " input_image output_image lower upper delta seed"
      << std::endl;
    return( 1 );

  } // fi
  std::string input_image_filename = argv[ 1 ];
  std::string output_image_filename = argv[ 2 ];
  TPixel lower = TPixel( std::atof( argv[ 3 ] ) );
  TPixel upper = TPixel( std::atof( argv[ 4 ] ) );
  TPixel delta = TPixel( std::atof( argv[ 5 ] ) );
  unsigned long signal_kernel_size = std::atoi( argv[ 6 ] );
  double signal_threshold = std::atof( argv[ 7 ] );
  double signal_influence = std::atof( argv[ 8 ] );

  // Read image
  typedef itk::ImageFileReader< TImage > TImageReader;
  TImageReader::Pointer input_image_reader = TImageReader::New( );
  input_image_reader->SetFileName( input_image_filename );

  // Prepare filter
  typedef fpa::Filters::Image::Mori< TImage, TImage > TFilter;
  TFilter::Pointer filter = TFilter::New( );
  filter->SetInput( input_image_reader->GetOutput( ) );
  filter->SetInsideValue( std::numeric_limits< TPixel >::max( ) );
  filter->SetOutsideValue( TPixel( 0 ) );
  filter->SetThresholds( lower, upper, delta );
  filter->SetSignalKernelSize( signal_kernel_size );
  filter->SetSignalThreshold( signal_threshold );
  filter->SetSignalInfluence( signal_influence );

  // Configure seed
  TImage::IndexType seed;
  for( int j = 0; j < Dim; ++j )
    seed[ j ] = std::atoi( argv[ 9 + j ] );
  filter->SetSeed( seed );

  // Execute filter
  filter->Update( );

  // Save results
  typedef itk::ImageFileWriter< TFilter::TOutputImage > TOutputWriter;
  TOutputWriter::Pointer output_writer = TOutputWriter::New( );
  output_writer->SetInput( filter->GetOutput( ) );
  output_writer->SetFileName( output_image_filename );
  try
  {
    output_writer->Update( );
  }
  catch( std::exception& err )
  {
    std::cerr << "Error caught: " << err.what( ) << std::endl;
    return( 1 );

  } // yrt

  return( 0 );
}

// eof - $RCSfile$