请问怎样求取系列离散点中的二阶导数过零点?
rt.
谢谢!
如果能给我提供下面文献就最好了!
1。Haralick,R.M.,1984.Digital step edges from zero crossing of second directional derivatives. IEEE Trans.Pattern Anal.Machine Intell.
2.Tico , M.,Kuosmanen,P.,1999.A topographics method for fingerprint segmentation.In: Proc. 6th Internat.Conf.On Image processing , Kobe , Japan,pp.36-40
谢谢,非常!