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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: ImageReadRealAndImaginaryWriteComplex.cxx,v $
  Language:  C++
  Date:      $Date: 2006/07/31 01:27:23 $
  Version:   $Revision: 1.3 $

  Copyright (c) 2006 Insight 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

#ifdef __BORLANDC__
#define ITK_LEAN_AND_MEAN
#endif

/** Example illustrating use of functions to convert between complex valued
 * voxels, magnitude and phase, and real and imaginary representations.
 *
 * \author Simon K. Warfield simon.warfield@childrens.harvard.edu
 *
 * \note Attribution Notice. This research work was made possible by Grant 
 * Number R01 RR021885 (PI Simon K. Warfield, Ph.D.) from
 * the National Center for Research Resources (NCRR), a component of the
 * National Institutes of Health (NIH).  Its contents are solely the
 * responsibility of the authors and do not necessarily represent the
 * official view of NCRR or NIH.
 *
 */

#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkRealAndImaginaryToComplexImageFilter.h"

int main( int argc, char * argv[] )
{
  if( argc != 4 )
    {
    std::cerr << "Usage: " << argv[0] << " inputReal inputImaginary outputComplex" << std::endl;
    return EXIT_FAILURE;
    }

  const unsigned int Dimension = 2;

  typedef float InputPixelType;
  typedef float OutputPixelType;
  typedef itk::Image< InputPixelType  ,  Dimension > InputImageType;
  typedef itk::Image< std::complex<OutputPixelType> ,  Dimension > OutputImageType;
  typedef itk::ImageFileReader< InputImageType > ReaderType;
  typedef itk::ImageFileWriter< OutputImageType > WriterType;

  typedef itk::RealAndImaginaryToComplexImageFilter <
                                    	InputPixelType,
                                        InputPixelType,
				        OutputPixelType,
					Dimension
				        > RealAndImaginary2ComplexFilterType;

  ReaderType::Pointer readerReal = ReaderType::New();
  ReaderType::Pointer readerImag = ReaderType::New();
  WriterType::Pointer writer = WriterType::New();
  RealAndImaginary2ComplexFilterType::Pointer RealAndImaginary2Complex = RealAndImaginary2ComplexFilterType::New();

  readerReal->SetFileName( argv[1] );
  readerImag->SetFileName( argv[2] );
  writer->SetFileName( argv[3] );

// Read the image and get its size
  readerReal->Update();
  readerImag->Update();

  RealAndImaginary2Complex->SetInput1(readerReal->GetOutput());
  RealAndImaginary2Complex->SetInput2(readerImag->GetOutput());

  writer->SetInput(RealAndImaginary2Complex->GetOutput());
  writer->Update();

  return EXIT_SUCCESS;

}