magick++ Image declaration

Hi,

I am looking into the imagemagick c++ API.
Magick++ documentation recommends automatic Image variables (i.e. allocated
on the
stack, via declaration of local variables) as the prefered way of creating
Image objects, instead of
explicit allocation (via 'new').

I am planning the use threads and to pass these object between the threads.
the "preference" above worries me...
I would like to pass images pointers, put them in linked queues, sort them
......

for instance if thread A want to pass an image to thread B and then A
terminates (and B proceeds the image), I see a problem if the image should
be on A's stack

How should these kind of things be done?

Any know axemples?

Thanks for helping,

/Christophe milard.