Posted by
Jeff Linn on
Oct 17, 2008; 5:08pm
URL: http://imagej.273.s1.nabble.com/comparing-2-images-tp3694719p3694720.html
I've been doing this for years in my Rolfing practice and class, first
with NIH Image and lately with ImageJ. I've developed a set of macros
that work with the Mac and a firewire video camera or with Linux and a
digital camera (downloading the pictures. I'd be happy to share the
macros I have (they are a little rough but available on my website at
http://jefflinn.yogabodywork.net/imaging.html ).
As far as adjusting for different camera positions in the pictures there
are better minds on this board for that. I learned early on that it was
much easier to have the camera in a fixed position rather than post
process. I think there was an article written in the Journal of
Bodywork and Movement Therapies a while back (not sure when but you may
be able to search them online) about doing this with ImageJ (technical
no macros or plugins as I remember).
Good Luck,
Jeff Linn
Guild for Structural Integration
[hidden email]
On Thu, 2008-10-16 at 16:35 -0400, Holly Treddenick wrote:
> Hi
> I am using Image J to help analyze static posture. I took a picture of 30
> people standing neutral with some markers on bony landmarks on their body.
> Half of them were put through a 4 week treatment period and half of them
> weren't. They all came back and got photographed again, in the same neutral
> stance. I know Image J can be used to compare the 2 images to measure the
> changes, but I haven't been able to figure out how. I tried writing down the
> xy co-ordinates, but I'm sure there is a better way.
>
> Also, the angle of the camera was changed for a few of the pictures, but the
> distance always remained the same. Can anyone help guide me in this process?
> Thank you!
>
> Thanks so much!
> Holly
>
[hidden email]
>