摘要
提出了基于方向分割的一套完整的指纹预处理组合算法 ,主要包括方向图的计算、平滑、方向滤波、局域自适应、二值化、去噪和细化等算法 ,能很好地增强指纹图像 ,减少因指纹旋转及平移因素而造成的误识别 ,为可靠、准确地实现指纹自识别提供一种可行的方法。
A combinatorial algorithm based on the directional segmentation is proposed for the pre processing of the fingerprint images, which can improve the accuracy and reliability of the automatic recognition of fingerprint images. This combinatorial algorithm is composed of directional image computation, smoothing, directional filtering, local self adaptive binarization, noise elimination and thinning. Such an algorithm can enhance the fingerprint images and reduce the effect of the rotation and shift of the images on the fingerprint recognition.
出处
《计算机应用》
CSCD
北大核心
2002年第10期29-32,共4页
journal of Computer Applications
