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  

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June 22, 2015 12:29PM
Isaac Schwabacher Wrote:
-------------------------------------------------------
> The issue is that MATLAB indices start at 1, while
> AFNI indices start at 0. So when addressing the
> entire brick with a single index, MATLAB index
> 372560 is the same voxel as AFNI index 372559, and
> the MATLAB voxel is at (68, 33, 52) while the AFNI
> voxel is at (67, 32, 51).

I'm not sure if that explains the issue, as the OP reported (68, 33, 52) versus (68, 32, 51), i.e. a difference of (0, 1, 1).
I've not tried to replicate the issue, but can it have to do with rounding issues?
Subject Author Posted

AFNI and MATLAB discrepancies after surface to 3D volume transformation

dberman6 June 19, 2015 07:32PM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

Isaac Schwabacher June 22, 2015 10:59AM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

nick June 22, 2015 12:29PM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

Isaac Schwabacher June 22, 2015 12:43PM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

nick June 22, 2015 12:57PM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

Isaac Schwabacher June 22, 2015 01:01PM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

nick June 23, 2015 06:59AM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

Isaac Schwabacher June 23, 2015 12:03PM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

nick June 24, 2015 07:28AM

Re: AFNI and MATLAB discrepancies after surface to 3D volume transformation

Isaac Schwabacher June 24, 2015 11:34AM