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

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benconrad
October 10, 2018 08:47PM
Hello AFNI gurus,
A minor question and observation. Why did the default EPI masking in afni_proc.py change from applying 3dAutomask with dilation of 1 voxel to using no dilation? I noticed this while comparing coverage maps from two different datasets, one processed with a more recent version of AFNI in which the dilation is not applied, and just want to be consistent (easy enough to rerun 3dAutomask). Just curious, what is the justification for this change? Also, wanted to point out that the afni_proc help doc (https://afni.nimh.nih.gov/pub/dist/doc/program_help/afni_proc.py.html) still says that a dilation of 1 voxel is applied by default.

Thank you for your support!

-Ben
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Subject Author Posted

afni_proc.py change in default 3dAutomask dilation

benconrad October 10, 2018 08:47PM

Re: afni_proc.py change in default 3dAutomask dilation

rick reynolds October 10, 2018 09:36PM

Re: afni_proc.py change in default 3dAutomask dilation

benconrad October 11, 2018 12:49AM