code: private static int computeE5(int b, int c, int e, int f, int h, int i)
      {
          if (b == f && e != i || h == f && e != c)
          {
              return f;
          }
          return e;
      }
docs: Compute E5 pixel.
  
  @param b The b value.
  @param c The c value.
  @param e The e value.
  @param f The f value.
  @param h The h value.
  @param i The i value.
  @return The computed value.