Outline for second lecture on shape
CSE/EE 576 May 8, 1995, SLT

(3b Scalar Features -- additional item)
   Euler Numbers
   Fast computation using global counts of local patterns

5. Convexity
   Restricted convexity (horizontal and vertical cross sections are convex)
   Convex hull
   Convex deficiency
   Convexity ratio

   Computing convex hulls from polygonal representations.

6. Distance Transforms
   Chessboard distance
   Manhattan (city-block) distance
   3-4 distance
   Computation by iterative updating