bool termination_point bool neighbor3by3 /* true means 3x3 neighborhood, false means 5x5 neighborhood */ int grad_mag[500][500] /* Magnitude of Gradient */ int m_Cols /* Number of Columns */ int m_Rows /* Number of Rows */ int no_of_s

找出一个3x3数组的“鞍点”-find a 3x3 array of "saddle"