Thank you so much for the detailed reply.
I managed to save the tags in the .HEAD using the plugin.
The 3dQwarp command I was testing is quite similar to the one you suggested, I only have to further test the workhard option. Using the option -iniwarp and always the same image as source I guess that I will have no problems of resampling.
Two more questions:
- I tested 3dTagalign: how is this program working? Is it matching tags by label? I have for both datasets a set of tags with the same labels, but sometimes tags are close to each other, so I was wondering if the matching is computed between labels pairs.
- I see that after warping a dataset with 3dQwarp, the tags in the header disappear. Is there a way to obtain a new warped dataset with updated tags in the header? Or should I find a way to apply the warp to the markers externally, and then use again the plugin to assign them to the new header?
(is there a 3dNwarpApply function for vectors??)

Thank you



Edited 1 time(s). Last edit at 11/24/2021 11:25AM by SC5.