详细的分析了一个数字识别系统，介绍了许多图像图形处理的方法，以及在处理字符识别中有针对性的算法。并介绍了利用神经网络的相关知识以及用神经网络进行数字识别的整个过程。-A detailed analysis of a digital identification system, introduced a number of image and graphics processing methods, as well as in dealing with character recognition

The purpose of this work is to identify a given face image using main features of face. The dimensionality of face image is reduced by the Principal component analysis (PCA, using eigenfaces method) and the recognition is done by the Back propagation

较实用的识别数字符号的实例，神经网络训练，识别手写数字-Identification of a practical instance of digital symbol, neural network training and recognition of handwritten Numbers

人脸识别工具，基于QT平台，利用alglib库神经网络技术，实现人脸识别功能-Face recognition tool, based on QT platform, using alglib library neural network technology, face recognition function