IMAGEGRAPH Create equivalent graph of a binary image.

   [N E] = imageGraph(IMG);
   or 
   [N E F] = imageGraph(IMG);
   create graph representing adjacencies in image. N is the array of
   nodes, E is the array of edges, and F is a 4-columns array containing
   indices of vertices of each face.
   IMG can be either 2D or 3D image.
   This functions uses only 4 neighbors in 2D, and 6 neighbors in 3D.

Package: matgeom