Hello freesurfers,
We've seen some poor surface reconstructions due to local inhomogeneities
that remain in the brainmask volume. We see omission of significant
portions of brain tissue due to signal fall off (both gray and white voxels
are darker than in surrounding area) that we are unable to current through
control points or other manual interventions. Can anyone suggest a tool for
correcting latent local inhomogeneities? Is anyone aware of a manual tool
that allows one to "brighten" the voxels from some point outward at some
falloff rate?

Any help would be greatly appreciated.

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