生物识别：指纹、人脸、虹膜、头骨及静脉识别是最有应用价值的几个，本代码是静脉识别的C++代码，具有极高的参考价值。-Biometrics: fingerprint, face, iris, skull and intravenous application of recognition is the most a few, the vein identification code is C++ code, with a high reference value.