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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EXP.2086
December 16, 2019 01:50AM
Hi,

I used these code to generate constant sized GM ROIs near the $fROI peak:
Quote

3dROIMaker -inset $fROI -thresh 0 -mask $wbmask \
-wm_skel $wmfa -skel_thr 0.2 -skel_stop_strict \
-only_conn_top 500 -inflate 1 \
-neigh_upto_vert -dump_no_labtab -nifti \
-prefix $ifROI

I understand the inflation of GMI ROI, but why the GM ROI size did not equal to 500 exactly? Sometimes 512, or 559, or 517, or 500.

Thanks,
2086
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Subject Author Posted

Why does 3dROIMaker not produce GM ROI size equal to -only_conn_top N?

EXP.2086 December 16, 2019 01:50AM

Re: Why does 3dROIMaker not produce GM ROI size equal to -only_conn_top N?

ptaylor December 16, 2019 07:20AM

Re: Why does 3dROIMaker not produce GM ROI size equal to -only_conn_top N?

EXP.2086 December 16, 2019 09:49AM

Re: Why does 3dROIMaker not produce GM ROI size equal to -only_conn_top N?

ptaylor December 16, 2019 10:29AM

Re: Why does 3dROIMaker not produce GM ROI size equal to -only_conn_top N?

EXP.2086 December 16, 2019 10:39AM