[ITK-users] Geodesic Active Contour with Shape Guidance Parameters

[Robert]

Hello,
I was trying out the Geodesic Active Contour with Shape Guidance example
from the ITK book, but I can't get the same result as described in the book.
There is a parameter called "startx" and "starty" that you need to provide.
This isn't explained in the text. How do I need to choose those parameters,
and what do they mean/influence? I tried a few different ones, but I don't
see any influence, however my "final parameters" result is different than in
the book. Also, my output image looks wrong in the sense that it is not
rotated at all, it does not seem to find the right spot in the image.... 
Could anyone explain those parameters to me?




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