Re: [Freesurfer] "Splotchy" labels after transformation from fsaverage to native

2012-07-16 Thread Bruce Fischl
Hi Michael, yes, you can do this in tksurfer with a tcl script (labl_erode and labl_dilate I believe). Not sure if there is a binary to do it, but it would be pretty easy to write Bruce On Mon, 16 Jul 2012, Michael Waskom wrote: Hmm, ok.  Are there no functions for doing a dilation/erosion

Re: [Freesurfer] "Splotchy" labels after transformation from fsaverage to native

2012-07-16 Thread Michael Waskom
Hmm, ok. Are there no functions for doing a dilation/erosion on a surface label? On Mon, Jul 16, 2012 at 1:14 PM, Douglas N Greve wrote: > There is not an easy/good way to handle this situation. The way it works > is that it goes through each point in the source and finds the closest > vertex in

Re: [Freesurfer] "Splotchy" labels after transformation from fsaverage to native

2012-07-16 Thread Douglas N Greve
There is not an easy/good way to handle this situation. The way it works is that it goes through each point in the source and finds the closest vertex in the target. If the target is more densely sampled, then there are some points in the target in the middle of the label that are not the close

Re: [Freesurfer] "Splotchy" labels after transformation from fsaverage to native

2012-07-16 Thread Michael Waskom
Hi, just wanted to bump this up since it looks like Doug is back. On Tue, Jul 10, 2012 at 5:09 PM, Michael Waskom wrote: > Hi, > > I'm using mri_label2label to reverse normalize labels from fsaverage > space to the native surface. > > I'm ending up with some splotchy-looking labels, for lack of a

[Freesurfer] "Splotchy" labels after transformation from fsaverage to native

2012-07-10 Thread Michael Waskom
Hi, I'm using mri_label2label to reverse normalize labels from fsaverage space to the native surface. I'm ending up with some splotchy-looking labels, for lack of a better word. See what I mean here: http://web.mit.edu/mwaskom/www/splotchy.png I'm doing this normalization in a script with the f