ITK  5.0.0
Insight Segmentation and Registration Toolkit
WikiExamples/Iterators/ImageRegionIteratorWithIndex.cxx
#include "itkImage.h"
#include "QuickView.h"
int main(int argc, char*argv[])
{
if(argc < 2)
{
std::cerr << "Required: filename" << std::endl;
return EXIT_FAILURE;
}
using ImageType = itk::Image<unsigned char, 2>;
using ReaderType = itk::ImageFileReader<ImageType>;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(argv[1]);
reader->Update();
ImageType::Pointer image = reader->GetOutput();
ImageType::SizeType regionSize;
regionSize[0] = 5;
regionSize[1] = 4;
ImageType::IndexType regionIndex;
regionIndex[0] = 0;
regionIndex[1] = 0;
region.SetSize(regionSize);
region.SetIndex(regionIndex);
itk::ImageRegionIteratorWithIndex<ImageType> imageIterator(image,region);
while(!imageIterator.IsAtEnd())
{
std::cout << "Index: " << imageIterator.GetIndex() << " value: " << imageIterator.Get() << std::endl;
// Set the current pixel to white
imageIterator.Set(255);
++imageIterator;
}
// Visualize
QuickView viewer;
viewer.AddImage<ImageType>( image );
viewer.Visualize();
return EXIT_SUCCESS;
}