How to use Image Iterators in right way

dzenanz · June 12, 2020, 12:57am

it.GetIndex() gives the index, e.g.:

InsightSoftwareConsortium/ITK/blob/d9e73e9a8b447cb8f3a19301fbfeaa141fa98b91/Examples/Iterators/ImageRegionIteratorWithIndex.cxx#L146


// Software Guide : EndLatex

// Software Guide : BeginCodeSnippet
ImageType::IndexType requestedIndex =
  outputImage->GetRequestedRegion().GetIndex();
ImageType::SizeType requestedSize =
  outputImage->GetRequestedRegion().GetSize();

for (outputIt.GoToBegin(); !outputIt.IsAtEnd(); ++outputIt)
{
  ImageType::IndexType idx = outputIt.GetIndex();
  idx[0] = requestedIndex[0] + requestedSize[0] - 1 - idx[0];
  outputIt.Set(inputImage->GetPixel(idx));
}
// Software Guide : EndCodeSnippet

WriterType::Pointer writer = WriterType::New();
writer->SetFileName(argv[2]);
writer->SetInput(outputImage);
try
{