[ITK] [ITK-users] Multiply two .img or .hdr images in ITK

[Pansam Changmi]

Thanks Christopher,

I removed the VTK viewer part and instead of creating two images I edited
the code to read tow ".hdr" files and write one ".hdr" output file. But I
am getting the following errors. I couldn't figure out the problem. Given
below is multiplyFilter.cxx code:

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

int main( int argc, char * argv[] )
{
  if( argc < 4 )
    {
    std::cerr << "Usage: " << argv[0];
    std::cerr << " fixedImageFile  movingImageFile ";
    std::cerr << "outputImagefile " << std::endl;
    return EXIT_FAILURE;
    }

  typedef  unsigned short  PixelType;
  const   unsigned int        Dimension = 3;
  typedef itk::Image< PixelType, Dimension >  FixedImageType;
  typedef itk::Image< PixelType, Dimension >  MovingImageType;

  typedef itk::ImageFileReader< FixedImageType  > FixedImageReaderType;
  typedef itk::ImageFileReader< MovingImageType > MovingImageReaderType;

  FixedImageReaderType::Pointer  fixedImageReader  =
FixedImageReaderType::New();
  MovingImageReaderType::Pointer movingImageReader =
MovingImageReaderType::New();

  fixedImageReader->SetFileName( argv[1] );
  movingImageReader->SetFileName( argv[2] );

  typedef itk::MultiplyImageFilter <FixedImageReaderType,
MovingImageReaderType >
      MultiplyImageFilterType;

  MultiplyImageFilterType::Pointer multiplyFilter
    = MultiplyImageFilterType::New ();
  multiplyFilter->SetInput1(fixedImageReader);
  multiplyFilter->SetInput2(movingImageReader);

  typedef  unsigned char  OutputPixelType;

  typedef itk::Image< OutputPixelType, Dimension > OutputImageType;

  typedef itk::ImageFileWriter< OutputImageType >  WriterType;

  WriterType::Pointer      writer =  WriterType::New();

  writer->SetFileName( argv[3] );

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

  return EXIT_SUCCESS;
}




On Sun, Apr 27, 2014 at 11:14 AM, Christopher Mullins <
christopher.mullins at kitware.com> wrote:

> This example might help. You can delete the VTK-viewer bit if you want,
> should only need ITK.
>
> http://www.itk.org/Wiki/ITK/Examples/ImageProcessing/MultiplyImageFilter
> On Apr 27, 2014 1:40 AM, "Pansam Changmi" <pansam5green at gmail.com> wrote:
>
>> Hi,
>>
>> Can anyone tell me how to multiply two .img or .hdr images (for example
>> head.img and BrainMask.img) in ITK? Do I need VTK? ITK-Snap? C3d tool?
>>
>> Regards,
>> Pansam
>>
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