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  

|
March 12, 2014 09:52AM
Where is the b0 image in the 4d DWI volume? If it is the nth volume in the 4D array (we start counting at 0), then what you want is:

3dcalc -a original.nii'[n]' -expr 'a' -prefix your_nth_volume

The example you are suggesting from FSL seems geared for extracting values in a certain range. There is another syntax for that of course. Consider the output of 3dcalc -help, or -h_view, for more details.
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