[Insight-users] Marker Controlled Watershed, how to realize it in ITK?

[Quan Chen]

It appear to me that the watershed filters provided by ITK only
accepts a input image.  It will determine the basin points
automatically.  However, can I specify the markers so that I can do
what this webpage demonstrates.
http://cmm.ensmp.fr/~beucher/wtshed.html#examples

I want to try the coffee bean example in that webpage.