Dear FSLers,
I have two quick questions on the use of rmsdiff: I am trying to get a
single measure of "how much" sheering/translating/etc there was across a
set of (linear) registrations.
1. I am a little confused by what would be 'refvol' in the command's
syntax. In other commands refvol is the "to" image(i.e., in
example_func2highres it would be the "highres"), but on the manual
online it's referred to as an "input image" which would make me think of
"example_func". So is it the "from" or "to" image I need there?
2. I am not comparing different registrations for the same image, rather
I would just like to get a number as to, for each of my subjects, how
much moving around there was. Would it be fair game to use an identity
matrix (for all my subjects) as the second input matrix? Naively, I'd
think this would give me a common "no registration" benchmark for all
the subjects.
thank you
Martin
--
Martin M Monti, PhD
Assistant Professor
7461E Franz Hall
UCLA Department of Psychology
BOX 951563,
Los Angeles, CA 90095-1563
310-825-8546
http://montilab.psych.ucla.edu
http://faculty.psych.ucla.edu/directory/faculty.php?id=187&area=3
<http://faculty.psych.ucla.edu/directory/faculty.php?id=187&area=3%20>
“Well! I’ve often seen a cat without a grin,” thought Alice,
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