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.
Just in case this is not obvious: The cost function's value by itself is not a measure of registration quality. The details of how registration quality was assessed are in the paper describing LPC:
A new method for improving functional-to-structural MRI alignment using local Pearson correlation. NeuroImage, 44: 839-848, 2009