Hi Douglas,
Thanks, that worked. However, for future reference, if it's necessary to keep the original values then put --no-rev
Thanks Dorothy
On Tue, May 16, 2017 at 10:31 AM, Douglas Greve greve@nmr.mgh.harvard.edu wrote:
Try something like
mris_apply_reg --src overlay4k.mgh --trg overlay1k.mgh --streg surf4k surf1k
On 5/16/17 12:41 PM, Dorothy Sincasto wrote:
Hi Douglas,
I am using the cortical surface for MEG time series reconstruction. I need to know which vertices belong to a specific area, i.e. vertices that belong to the PCC, AG... I got the surfaces from the HCP which has 4.002 vertices in each subject, then I decimated with mris_decimate 0.25, getting 1.000 vertices. The problem is that the atlas is in this 4.002 vertices space, and I want to downsample it to 1.002. Is there a way to downsample the atlas in an mgh overlay format?
One work around that I thought is getting the 4k vertices coordinates and the 1k vertices coordinates and find the nearest vertices in the 4k.
Thanks Dorothy
On Mon, May 15, 2017 at 6:49 PM, Douglas Greve greve@nmr.mgh.harvard.edu wrote:
I don't understand what you are trying to do. Can you elaborate? Sending command lines is always helpful
On 5/15/17 6:50 PM, Dorothy Sincasto wrote:
Hi freesurfers,
I have an overlay with 4k vertices and I want to decimate it to 1k. This overlay is actually an atlas with a label value for each vertex. My surfaces will have 1k vertices and I need the overlay to 1k so I know which areas each vertex belong to.
I tried to decimate the atlas.mgh but it gives me this error:
ERROR: MRISread: file '/Users/dsinc35/Desktop/projec ts/parcellation/MMP_atlas_L.mgh' has 0 vertices! Probably trying to use a scalar data file as a surface!
Maybe there is a way to project it?
Any thoughts?
Thanks,
Dorothy
Freesurfer mailing listFreesurfer@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
_______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.e du/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Freesurfer mailing listFreesurfer@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.