There are certain steps that must be followed if you want to use custom images
or features with the object detection functionality of the N900 application.

1) The application looks for the db file in the same directory as the binary
   executable.  It also looks for a specific file name.  The file name is
     (feature type id).db
   The IDs are as follows:
   1 - Dummy
   2 - MOPS (Your implementation)
   3 - SURF
   So, if you want to have an image database of SURF features, the file would
   be 3.db
2) Each entry in this database file points to an image/features pair.  All
   paths are relative with respect to the directory of the database file.  An
   example entry is:
   images/some_book.jpg surf/some_book.f
   During the matching process, each entry will be matched with the snapshot.
3) Features must be generated for the images in the database.  Use the
   computeFeatures option of the executable on the desktop machine.
4) Make sure the image itself is available in the correct directory.
5) scp all of these files over to the phone
