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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March 12, 2014 09:54AM
If you want to extract a specific volume / sub-brick from a 4D dataset, you can select a single sub-brick or range of sub-bricks with the bracket specifier, "[subbricklist]". A simple example:

3dcalc -a dwi.nii'[0]' -expr a -prefix b0.nii.gz

This commands takes the first volume of the dataset and makes a new NIFTI file from that. 3dcalc's help has several examples of how to select sub-bricks.
Subject Author Posted

image extraction syntax (3dCalc?)

leetaey March 12, 2014 09:36AM

Re: image extraction syntax (3dCalc?)

ziad March 12, 2014 09:52AM

Re: image extraction syntax (3dCalc?)

Daniel Glen March 12, 2014 09:54AM

Re: image extraction syntax (3dCalc?)

leetaey March 13, 2014 11:50AM

Re: image extraction syntax (3dCalc?)

Peter Molfese March 13, 2014 12:26PM

Re: image extraction syntax (3dCalc?)

Daniel Glen March 13, 2014 12:29PM

Re: image extraction syntax (3dCalc?)

leetaey March 13, 2014 12:52PM