Page 33 - Predicting the Risk of Attaining Breast Cancer
P. 33

Radial Gradient












          • The radial gradient                                                                             Radial gradient


             vector has the same


                                                                                                                         
             magnitude as the                                                                                 r (P )    g (P   )

             Cartesian gradient                                                                                        )

                                                                                                                    (P
             vector, but                                                                             P



          • the orientation is given                                                                  (P )



             as:


                                                 ) 
                              ) 
                     r  (P =              (P −              (P    )





                                                                                                                                      33
   28   29   30   31   32   33   34   35   36   37   38