ITK  5.0.0
Insight Segmentation and Registration Toolkit
WikiExamples/Morphology/GrayscaleDilateImageFilter.cxx
#include "itkImage.h"
#include "itksys/SystemTools.hxx"
#include "QuickView.h"
int main(int argc, char *argv[])
{
if(argc < 2)
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0] << " InputImageFile [radius]" << std::endl;
return EXIT_FAILURE;
}
unsigned int radius = 2;
if (argc > 2)
{
radius = atoi(argv[2]);
}
std::string inputFilename = argv[1];
using ImageType = itk::Image<unsigned char, 2>;
using ReaderType = itk::ImageFileReader<ImageType>;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(inputFilename);
using StructuringElementType = itk::BinaryBallStructuringElement<
ImageType::PixelType,2>;
StructuringElementType structuringElement;
structuringElement.SetRadius(radius);
structuringElement.CreateStructuringElement();
GrayscaleDilateImageFilterType::Pointer dilateFilter
= GrayscaleDilateImageFilterType::New();
dilateFilter->SetInput(reader->GetOutput());
dilateFilter->SetKernel(structuringElement);
SubtractType::Pointer diff = SubtractType::New();
diff->SetInput2(reader->GetOutput());
diff->SetInput1(dilateFilter->GetOutput());
QuickView viewer;
viewer.AddImage(
reader->GetOutput(),true,
itksys::SystemTools::GetFilenameName(inputFilename));
std::stringstream desc;
desc << "GrayscaleDilate, radius = " << radius;
viewer.AddImage(
dilateFilter->GetOutput(),
true,
desc.str());
std::stringstream desc2;
desc2 << "Original - GrayscaleDilate";
viewer.AddImage(
diff->GetOutput(),
true,
desc2.str());
viewer.Visualize();
return EXIT_SUCCESS;
}