[CentOS] how2 mount ntfs partition that is part of a full HD image file

I have a full disk image file (courtesy of ddrescue), and need to mount
one of its partitions. I suppose I should have just extracted the single
partition when I was using ddrescue, but right now I have the whole disk
instead, and no disk space left to re-do the extraction (in fact I won't
be able to use the system where I did it for several weeks, so I'd love
to be able to mount just the partition from the image I have).

I'll be doing some digging, but thought I'd inquire here too.

thanks in advance!

-- 
-------------------------------------------------------------------------------
    Under no circumstances will I ever purchase anything offered to me as
    the result of an unsolicited e-mail message. Nor will I forward chain
    letters, petitions, mass mailings, or virus warnings to large numbers
    of others. This is my contribution to the survival of the online
    community.
 --Roger Ebert, December, 1996
----------------------------- The Boulder Pledge -----------------------------