Hi,

Actually, as long as you just want integer values you can set the value of the pen tool
in FSLView to write any integer value into a voxel directly.

All the best,
Mark


On 30 Mar 2012, at 14:47, Paul Robinson wrote:

Hi, Emily.

You could use the pencil tool in fslview to make a single voxel mask, then use fslmaths to change the value in that mask to whatever you want (-odt float), and then add it to your original image (or maybe to a copy of the original).

hth,
Paul

On Fri, Mar 30, 2012 at 9:39 AM, Emily Coffey <[log in to unmask]> wrote:
Will this tool allow me to do what I need?

http://www.fmrib.ox.ac.uk/fsl/fslview/masking.html