#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkGradientMagnitudeImageFilter.h"

int main(int argc, char **argv){

	typedef itk::Image<unsigned short,2>  ImageType;
	typedef itk::ImageFileReader<ImageType>  ReaderType;
	typedef itk::GradientMagnitudeImageFilter<ImageType,ImageType> FilteType;

	ReaderType::Pointer reader = ReaderType:: New();
	FilterType::Pointer filter = FilterType:: New();

	reader->SetFileName(argv[1]);
    filter->SetInput(reader->GetOutput());
	filter-> Update();
	return 0;
}

}