int
main(int argc, char * argv[])
{
if (argc != 4)
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0];
std::cerr << " <InputFileName> <OutputFileName>";
std::cerr << " <numberOfIterations> <timeStep> <conductance>";
std::cerr << std::endl;
return EXIT_FAILURE;
}
const char * inputFileName = argv[1];
const char * outputFileName = argv[2];
const float scale = std::stod(argv[3]);
using PixelType = unsigned char;
using ScalarType = double;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(inputFileName);
reader->Update();
ImageType::Pointer inputImage = reader->GetOutput();
ImageType::SpacingType spacing = inputImage->GetSpacing();
centralPixel[0] = size[0] / 2;
centralPixel[1] = size[1] / 2;
centralPoint[0] = centralPixel[0];
centralPoint[1] = centralPixel[1];
ScaleTransformType::Pointer scaleTransform = ScaleTransformType::New();
ScaleTransformType::ParametersType parameters = scaleTransform->GetParameters();
parameters[0] = scale;
parameters[1] = scale;
scaleTransform->SetParameters(parameters);
scaleTransform->SetCenter(centralPoint);
LinearInterpolatorType::Pointer interpolator = LinearInterpolatorType::New();
ResampleFilterType::Pointer resampleFilter = ResampleFilterType::New();
resampleFilter->SetInput(inputImage);
resampleFilter->SetTransform(scaleTransform);
resampleFilter->SetInterpolator(interpolator);
resampleFilter->SetSize(size);
resampleFilter->SetOutputSpacing(spacing);
WriterType::Pointer writer = WriterType::New();
writer->SetFileName(outputFileName);
writer->SetInput(resampleFilter->GetOutput());
try
{
writer->Update();
}
catch (itk::ExceptionObject & error)
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}