[Insight-users] OrientedImageAdaptor or ExtractOrientedImageFilter?

[Constantine Zakkaroff]

Dear ALL,

I'm looking for a way of extracting slices of arbitrary orientation 
specified by any given orientation matrix. At the moment I can do it in 
two different ways, but I suspect there should be a better way.

My first way is to resample the volume with the given orientation matrix 
and then use ExtractImageFilter to get a slice.

The other way I tried is a bit more involved but it is closer to what I 
need. First I construct an OrientedImage with the given orientation 
matrix and then use ImageRegionIteratorWithIndex to traverse the pixels 
and for each index obtained from the iterator I get the value of a pixel 
in the corresponding physical location in the volume.

I'm wondering if it is possible (and sensible) to use something like 
SpatialOrientationAdapter, but with an ability to set arbitrary 
orientation matrix so that the image appears already resampled if I want 
to extract a slice form it?

Or is there a way to cook up something like ExtractImageFilter that 
would let me extract slices under any arbitrary orientation specified 
through the given orientation matrix?

Thank you very much,
Constantine