First,fingerprint images underwent normalization operation,then an unprocessed ridge closest to the center of the fingerprint image was located,next,candidate minutia was found along the ridge,after that,true and false minutiae were judged according to the given judgment conditions.
其次定位到离指纹图像中心最近且未处理过的脊线上,再沿该条脊线搜索到候选特征点为止,然后再根据判断条件判定候选特征点的真伪;