In terms of creating your ROI these two commands could be helpful:
1) fslmaths /usr/local/fsl/data/standard/MNI152_T1_2mm -mul 0 -add 1 -roi $c1 1 $c2 1 $c3 1 0 1 ${out}point -odt float
2) fslmaths ${out}point -kernel sphere $rad -fmean ${out}$name -odt float
where:
$c1-$c3 are x,y,z coordinates (voxels) of the centre
$rad : to replaced by the radius (mm)
The above is for creating a ROI in the MNI space, but it could be replaced by any space.
First command creates the centre of the ROI, second the spherical ROI (centred around the point).
Hope this helps,
Iwo
Dear FSL experts,
I need to create a mask of the most responsive voxels. Specifically, in my study , I got the z value image of one condition (e.g., zstat1.nii.gz). Now, I need to create a mask of a fixed number of voxels(e.g., 100) with max z value in zstat1.nii.gz. Does any one know how I can do?
Thanks in advance!
Mingxia Zhang
