Fingerprint image enhancement method based on anisotropic tensor reverse diffusion
Zhang Shu-ling · Computer Engineering and Applications Journal · 2009
This paper gives an image enhancement method based on anisotropic tensor reverse diffusion from heat diffusion function.This method filters the fingerprint image,at the same time not only protect the fingerprint ridge,but enhance it.Experimental results show that this method has the effect of enhance edge compared with traditional method,such as medium filtering and Gaussian filtering,more suitable for dense texture image processing.