Creating a label file from ROIs is a bit more complicated than a single command (label files automatically have a guarantee that the areas don't overlap, but arbitrary ROIs can overlap).
>From what you currently have, one way to get to a new dlabel file is to concatenate the ROIs you want to use in your desired order using -cifti-merge, then use -cifti-reduce to generate both the INDEXMAX and MAX reductions, use -cifti-math to zero out the INDEXMAX values wherever MAX is zero (that is, everything that is unlabeled), and finally, use -cifti-label-import (you will want to make a text file containing your selected label names and desired colors). One drawback of this is that the label keys in the original MMP (say, 181 for L_V1) won't match the ones in your dlabel file (they will go from 1 to the number of chosen areas, in the order you picked). Another way to approach it, especially if you have only a few areas you want to keep or to remove, is to start over from the original, do -cifti-label-export-table to save the original colors and names, use -cifti-math on the dlabel file to zero out only the labels you don't want (to zero out only R_V1 and L_V1, you can use the expression 'x * (x != 1 && x != 181)', see the text file from the first step to get the key values to use, they are the first number in the line after the label name - as for the expression, the part in parenthesis, because it comes from logical operations, is always 0 or 1, so multiplying it into the original data (x) is a masking operation - to do the opposite and keep only R_V1 and L_V1, negate by inserting an exclamation point before the parenthesis: 'x * !(x != 1 && x != 181)'). The output of -cifti-math never has a label table, and in this case will be a dscalar file, so you need to re-import it with -cifti-label-import and the text file from the first step (and probably use -drop-unused to take the removed areas out of the label table of the result). I am curious, why do you want a label file with fewer than the full 360 areas? Tim On Tue, Sep 5, 2017 at 5:08 PM, Timothy Hendrickson <hendr...@umn.edu> wrote: > HCP users, > > I would like to create a custom dlabel file with particular ROIs from the > Glasser 360 surface atlas. > > Here is what I have done so far: > > 1) First I separated individual ROIs into their dscalar files with > wb_command -cifti-label-to-roi > 2) I can easily visualize all dscalar files within wb_view > > Now I am stuck trying to take the individual ROI dscalar files and create > one dlabel file which merges all ROI dscalar files together. > I've tried several different commands including -cifti-create-dense, > -cifti-create-dense-from-template, -cifti-create-label without luck. > > If anyone could assist it would be much appreciated. > > -Tim > > Timothy Hendrickson > Department of Psychiatry > University of Minnesota > Bioinformatics and Computational Biology M.S. Candidate > Office: 612-624-6441 <(612)%20624-6441> > Mobile: 507-259-3434 <(507)%20259-3434> (texts okay) > > _______________________________________________ > HCP-Users mailing list > HCP-Users@humanconnectome.org > http://lists.humanconnectome.org/mailman/listinfo/hcp-users > _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
