Dear Burkhard, did you try fslmaths A -add B C ? That should add A and B and write the result in C Jesper On 4 Feb 2011, at 11:24, Burkhard Maedler wrote: > Hi, > how can I check which version of fslmaths I am using? > > My current version has a bug. > To add two images the help says: > -add : add following input to current image (assuming the current > image is the first ???) > > so if I do: > fslmaths A -add B > > I expect B will be added to A and the result will be overwritten in A? > > In my current version the opposite is true. A is added to B and B > gets overwritten!!! > > It seems that I cannot define a new result image as output that > contains the sum of A and B, can I? > > Burkhard >