[Insight-developers] DCMTK Questions

[Williams, Norman K]

Hans has asked me to work on finishing Alexandre Gouaillard's work on the
DCMTK ImageIO.

Today I've been trying to move his work from his own github repository
into a gerrit topic on the current branch.  There are a number of issues
that this raises.

1. Hans suggested using a CMake ExternalProject to build DCMTK instead of
what Alex did, which is to introduce the DCMTK included in the CTK project
as a git module.  For one thing, that version of DCMTK won't compile with
Clang.

I don't see a clean way to grab and build DCMTK within the current ITK
framework at all.  What's done everywhere else is that there's a
SuperBuild or MetaBuild, which builds all of a project's prerequisites as
ExternalProjects, and then builds the project itself as an
ExternalProject, configuring it with ITK_DIR, VTK_DIR etc so that it finds
the prerequisites.

Could that be something that will be part of the ITK build process? Or are
we going to incorporate some sort of snapshot of DCMTK in
Modules/ThirdParty?

2. DCMTK can read a DICOM directory directly, meaning that it wouldn't be
necessary to use an ImageSeriesReader to read dicom datasets.  Should I
stick with creating a DCMTKSeriesFileNames?

That feels rather clumsy, but it raises the issue of trying to choose
which image in a multi-series DicomDirectory to load.

--
Kent Williams norman-k-williams at uiowa.edu






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