Function main

Examples/SimpleGaussian/SimpleGaussian.cxx:29–63

namespace sitk = itk::simple;

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

  if (argc < 4)
  {
    std::cerr << "Usage: " << argv[0] << " <input> <sigma> <output>\n";
    return 1;
  }

  // Read the image file
  sitk::ImageFileReader reader;
  reader.SetFileName(std::string(argv[1]));
  sitk::Image image = reader.Execute();

  // This filters perform a gaussian blurring with sigma in physical
  // space. The output image will be of real type.
  sitk::SmoothingRecursiveGaussianImageFilter gaussian;
  gaussian.SetSigma(atof(argv[2]));
  sitk::Image blurredImage = gaussian.Execute(image);

  // Covert the real output image back to the original pixel type, to
  // make writing easier, as many file formats don't support real
  // pixels.
  sitk::CastImageFilter caster;
  caster.SetOutputPixelType(image.GetPixelID());
  sitk::Image outputImage = caster.Execute(blurredImage);

  // write the image
  sitk::ImageFileWriter writer;
  writer.SetFileName(std::string(argv[3]));
  writer.Execute(outputImage);

  return 0;
}