人脸识别特指利用分析比较人脸视觉特征信息进行身份鉴别的计算机技术。人脸识别是一项热门的计算机技术研究领域，在生活中许多领域都有着重要应用。

这里通过对人脸图像打上网格，对区域块图像做二值分析，通过像素比例来做处理。进而得到人脸区域。-Especially the use of face recognition visual analysis and comparison of facial feature information to identify the identity of the computer technology. Face recognition is a hot research field of computer technology, many areas in life has important applications. Here to play through the grid on the face image of the area to do a binary block image analysis, done by pixel ratio processing. Then get the face region.