[vtkusers] ITK transformation matrix format?

[SG KIM]

Dear ITK/VTK experts,

I have a question on the format of :itk: transformation file. 

In such a text file for affine matrix (generated by ANTS):  
#Insight Transform File V1.0
# Transform 0
Transform: MatrixOffsetTransformBase_double_3_3
Parameters: a b c d e f g h i l m n
FixedParameters: x y z

Does it mean a transformation matrix as

T = [a b c x;
     d e f y;
     g h i z; 
     l m n 1]

in such that 
T * [x y z 1]^T = [x'/s y'/s z'/s 1]^T
where [x,y,z] is original coordinates and [x/s', y'/s, z'/s] is transformed coordinate with s as global scaling factor?

or something else?


Best,
---
Seung-Goo KIM 

PhD student
Research group "Cortical Networks and Cognitive Functions"
Max Planck Institute for Human Cognitive and Brain Sciences
Stephanstraße 1A, 04103 Leipzig, Germany

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