Combining some labeled images is a quite common and useful task in image analysis.
That's something we may want to do to prepare the markers for a watershed from
markers for example, or to write the output of several segmentations in a single
file.
This article comes with three new filters to make the combination
of labeled images easier with ITK.
This contribution also try to provide an implementation better integrated with the
ITK pipeline model than the itkMultipleUnlabeledImagesToLabeledImageFilter contribution.