[elastix] Specify ROI (mask)

Vratislav Harabiš vratislav.harabis at gmail.com
Tue Mar 23 16:31:33 CET 2010


Hi,

i would like specify ROI for registration. In elastix manual is 
recomended to use fixed mask ( -fMask mymask.mhd). I have two images in 
mhd, fixed and moving (the moving image is same as fixed image, just 
manualy translated by -50 -20 pix). If i use elastix registration 
without the mask, result image is well registered (result transform 
parameters are -50.03 and -20.01). But if i use fixed mask, the result 
transformation parameter is -1,19 and 0.45. In image mask.png is shown 
position and size of the mask (lighter area) with respect to fixed image.

Thank you.

Vratislav Harabis
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