[Insight-users] vtk -> itk -> (itk process) -> itk -> vtk

[John David Fleig]

The main issue of my earlier questions about getting an image into itk 
from vtk is a little more complicated than just reading an image from a 
file directly into itk. 

In general the images will be coming from someplace and of varying 
types. They may be read in through the vtk layer, or through some other 
mechanism and given to me in a raw memory buffer or stream. The trick is 
that I will have distributed processes to handle the entire vtk/itk 
processing and need some way to read in potentially mulidimensional color 
images into itk. 

Per prior discussions I've already learned that the vtk/itk 
imports/exports do not support color images. Therefore I have two 
questions:

1) In vtk I can break apart the rgb image into each component (as well as 
combine them back together again). Is there something similiar in itk, so 
that I could convert each one over to itk separately and then combine 
them? (and then break them up again to go backward)

2) Can I use something like ImportImageFilter and hand off a memory buffer 
and tell it, hey expect to see 3 component data?

David