[Insight-users] How to specify image masks for registration

[Andrew Li]

Dear Itk users:

We are planning to co-register an atlas with an image dataset.
The atlas is the moving dataset and the image dataset is the fixed
dataset.
	
We are planning to start with basic methods and then to try some more
sophisticated ones if it is necessary.

First thing first, we would like to specify a Moving-Image-Mask as the
non-zero pixels in the atlas. 

Question #1: how to prepare the input for the function
SetMovingImageMask()?  Could we just use the atlas directly? Or we need
to prepare the mask with a fixed value, say 1?
 
Thank you all very much in advance.

-Andrew
 
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