[Insight-users] Deformation field

[Vincent Garcia]

Dear all,

It seems that a deformation field (also called displacement field) is 
always represented by a itk::Image.
I was wandering why there is no itk::DisplacementField object which 
inherit from itk::Transform.
I know that such a field is just an array that it can be efficiently 
represented by an image.
However, I think it would be better to have a dedicated object since a 
transformation is not an image!
But maybe defining such object is not possible, I don't know...

I anybody has an idea why there is no deformation field object in ITK?

Thank you all!
Regards,

Vincent