[caret-users] How to export flatten image as a 2D image?

[Long]

Dear caret-users,

I want to analyze the flatten image as a 2D image, so there are a series of
questions about this:

1) How to export a flatten cortex as a 2D image? So I can use some 2D image
processing methods.

2) If a cortex was flattened, how to use the new reference coordinate system
in 2D cortex to identify the 3D coordinates, e.g., MNI coordinates? What is
the relationship between 2D and 3D cortex.

3) How to export one or two flatten Brodmann areas based on the Brodmann
template as a 2D image?

Thanks for your help.
Long
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