[Insight-developers] [GDCM] ITK Origin and coordinate system

[Bill Lorensen]

In an experiment I did a few months back, I had 6 MR scans done of the same 
object in each of the 6 orthogonal directions. I read them in using the 
current GDCMImageIO  (which transforms the origin using the direction 
cosines). All of the volumes roughly lined up without any additional 
transformations.

If I did not apply the direction cosines, the datasets were all shifted.

Go figure,

Bill