AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

|
October 26, 2016 10:44AM
Hi Dan,

There is no standard, and it certainly depends on
the voxel size. If not enough is removed, masks
can include voxels with partial gray matter. If too
much is removed, it can wipe out most of a mask.

The current method uses an NN2 neighborhood,
meaning neighbors can share a face or an edge,
the 19 non-corner voxel in a 3x3x3 grid. Eroding
at that rate goes quickly.

- rick
Subject Author Posted

3dmask_tool

CD-Dan October 22, 2016 11:29PM

Re: 3dmask_tool

rick reynolds October 26, 2016 10:44AM