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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October 25, 2005 09:35AM
The AFNI programs, when input-ing NIfTI files that have scale factors (NIfTI field scl_slope != 0), automatically convert the NIfTI data to floats. They do not leave the NIfTI data as shorts plus a scale factor, because AFNI internally is not set up to deal with the NIfTI scl_inter field; therefore, the scl_slope and scl_inter fields are applied immediately on input, if scl_slope != 0.

Now, you could rescale the dataset back to be stored as shorts by doing something like

3dcalc -a zork.nii -expr a -prefix bork -datum short -verb

Hope this helps.
Subject Author Posted

Problems when converting from Niftii to AFNI

Butterfly October 24, 2005 11:30AM

Re: Problems when converting from Niftii to AFNI

Rich Hammett October 24, 2005 11:42AM

Re: Problems when converting from Niftii to AFNI

Butterfly October 24, 2005 11:47AM

Re: Problems when converting from Niftii to AFNI

Butterfly October 24, 2005 02:02PM

Re: Problems when converting from Niftii to AFNI

Rich Hammett October 24, 2005 04:54PM

Re: Problems when converting from Niftii to AFNI

Robert Cox October 25, 2005 09:35AM

Re: Problems when converting from Niftii to AFNI

Butterfly October 25, 2005 01:36PM

Re: Problems when converting from Niftii to AFNI

Rich Hammett October 25, 2005 02:08PM