根据指纹的固有规律，提出了一套较完整的指纹图像预处理和特征提取算法。改进了指纹脊线频率求取算法和二值图像去孔噪声 算法，并提出了一种新的滤除指纹伪特征点的方法。通过对上百幅不同质量的指纹图像进行测试，获得了较好的效果。 关键词：指纹；预处理；特征提取-According to the inherent laws of fingerprints, a set of more complete fingerprint image pre-processing and feature extr

This a simple a gorithm for fingerprint image thinning. The image should be of good quality and binarized prior to the thinning. The thinning process is by using morphological mathematics.-This is a simple a gorithm for fingerprint image thinning. Th