提出了一种新的基于傅里叶变换的带阻滤波方式,既提高了运算速度,又满足了图像增强的要求,使得指纹图像二值化能够不丢失特征信息。
A new band-hinder filter based on Fourier translate was supplied, which could enhance the operation velocity and adapt to the demand for image enhanced. The new band-hinder filter can make the binarization of fingerprint image do not lose characteristic information.