指纹识别源代码，研究指纹识别的人可以作为参考。-fingerprint recognition source code, the study of fingerprint recognition can serve as a reference.

验证码识别,带特征码学习,可以做为识别引擎来使用,仅作参考.-Code recognition, with signature learning, can serve as a recognition engine to use only for reference.

This book will serve as a handbook for students, researchers and practitioners in the area of automatic (computer) face recognition and inspire some future research ideas by identifying potential research directions. Within each chapter the reader wi