针对采集条件造成的部分指纹图像质量差的问题,首先应用模糊增强方式以消除指纹图像的模糊性,然后使用方向滤波增强的方式以平滑断线,消除粘连。通过对FVC2000指纹数据库中的部分低质量指纹图像做增强处理,表明本文算法增强效果较好。
With the problem of poor quality fingerprint image, the algorithm first uses fuzzy enhancement method to eliminate the blur, and then uses or ientation filter method to smooth breakages and eliminate adhesions. Experiment results for some poor quality fingerprint images in FVC2000 fingerprint bases showed that the proposed method had good enhancement effect.