[Insight-users] Image Metrics on Image Regions

[Stefan Schmidt]

Hi everybody,

I'm new to ITK and have sort of a hard time getting started...

I'm trying to implement a block-matching algorithm.
Could someone please give me a hint on how to use the Image Metrics available 
in ITK to compare regions of two images directly? 

I've yet another question:
Is there some mechanism in ITK to estimate a (rigid/affine) transform from a 
displacement field (for example one given by a deformable  registration 
filter)?

Thanks in advance!

Kind regards,
Stefan Schmidt