Dear Gonzalo...
The helps says...
-ero : Erode by zeroing non-zero voxels when zero voxels found
in kernel
-eroF : Minimum filtering of all voxels
This means that with -eroF it will take the minimum intensity from the
set
of voxels in the kernel (normally the immediate 3x3x3 neighbours) and
use this minimum value as the replacement value. If you have a binary
image (containing only zeros and ones) the two methods give the same
results.
As for the kernel specification...
-kernel 3D : 3x3x3 box centered on target voxel (set as default
kernel)
This is the default kernel...
All the best...
Mark...
On 29 Jan 2010, at 18:09, Gonzalo Rojas Costa wrote:
> Hi:
>
> Which are the difference between "ero" and "eroF" fslmaths
> options ?... If I
> don't specify a kernel, I also get and erored image with "ero"
> option... Why
> ?...
>
> Sincerely,
>
>
> Gonzalo Rojas Costa
> Department of Radiology
> Las Condes Clinic
> Santiago
> Chile
>
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