Commits on Jan 25, 2023

1. BUG: Fix read/write of displacement field in NIFTI file format …

   NIFTI image containing displacement field (intent = 1006) was incorrectly read as scalar volume (all 3 vector components were set to the same value).
   
   Fixed by reading NIFTI displacement vector files similarly to general-purpose vector images. For displacement vector files,
   vector components are converted between NIFTI file's RAS coordinate system and ITK's LPS coordinate system,
   unless this conversion is explicitly disabled by setting ConvertRASDisplacementVectors to false.
   
   An ITK vector image can be written as NIFTI displacement vector file by setting "intent_code"="1006" in the metadata dictionary of the image.

   

   lassoan committed Jan 25, 2023
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