itkdoublethresholdimagefiltertest.cxx

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkDoubleThresholdImageFilterTest.cxx,v $
  Language:  C++
  Date:      $Date: 2007-08-10 14:34:01 $
  Version:   $Revision: 1.5 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif

//  

#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "itkFilterWatcher.h"

#include "itkDoubleThresholdImageFilter.h"


int itkDoubleThresholdImageFilterTest( int argc, char * argv[] )
{
  if( argc < 7 )
    {
    std::cerr << "Usage: " << std::endl;
    std::cerr << argv[0] << "  inputImageFile  ";
    std::cerr << " outputImageFile threshold1 threshold2 threshold3 threshold4 " << std::endl;
    return EXIT_FAILURE;
    }


  //
  //  The following code defines the input and output pixel types and their
  //  associated image types.
  //
  const unsigned int Dimension = 2;
  
  typedef unsigned char    InputPixelType;
  typedef unsigned char    OutputPixelType;
  typedef unsigned char    WritePixelType;

  typedef itk::Image< InputPixelType,  Dimension >   InputImageType;
  typedef itk::Image< OutputPixelType, Dimension >   OutputImageType;
  typedef itk::Image< WritePixelType, Dimension >    WriteImageType;


  // readers/writers
  typedef itk::ImageFileReader< InputImageType  >  ReaderType;
  typedef itk::ImageFileWriter< WriteImageType >  WriterType;
  typedef itk::RescaleIntensityImageFilter<OutputImageType, WriteImageType>
    RescaleType;

  // define the fillhole filter
  typedef itk::DoubleThresholdImageFilter<
                            InputImageType, 
                            OutputImageType >  DoubleThresholdFilterType;


  // Creation of Reader and Writer filters
  ReaderType::Pointer reader = ReaderType::New();
  WriterType::Pointer writer  = WriterType::New();
  RescaleType::Pointer rescaler = RescaleType::New();
  
  // Create the filter
  DoubleThresholdFilterType::Pointer  threshold = DoubleThresholdFilterType::New();
  FilterWatcher watcher(threshold, "threshold");

  // Setup the input and output files
  reader->SetFileName( argv[1] );
  writer->SetFileName(  argv[2] );
  
  // Setup the fillhole method
  threshold->SetInput(  reader->GetOutput() );
  threshold->SetInsideValue( 255 );
  threshold->SetOutsideValue( 0 );
  threshold->SetThreshold1( atoi(argv[3]) );
  threshold->SetThreshold2( atoi(argv[4]) );
  threshold->SetThreshold3( atoi(argv[5]) );
  threshold->SetThreshold4( atoi(argv[6]) );
  
  // Run the filter
  rescaler->SetInput( threshold->GetOutput() );
  rescaler->SetOutputMinimum(   0 );
  rescaler->SetOutputMaximum( 255 );
  writer->SetInput( rescaler->GetOutput() );
  writer->Update();

  // Output the number of iterations used
  std::cout << "DoubleThreshold took " << threshold->GetNumberOfIterationsUsed() << " iterations." << std::endl;
  std::cout << "<DartMeasurement name=\"NumberOfIterations\" type=\"numeric/integer\">" << threshold->GetNumberOfIterationsUsed() << "</DartMeasurement>" << std::endl;
  

  return EXIT_SUCCESS;

}