本课题的主要内容是图像预处理,它主要从摄像头中获取人脸图像然后进行处理,以便提高定位和识别的准确率.该模块主要包含光线补偿、图像灰度化、高斯平滑、均衡直方图、图像对比度增强，图像预处理模块在整个系统中起着极其关键的作用，图像处理的好坏直接影响着后面的定位和识别工作-The main content of the subject image preprocessing, mainly from the camera to obtain images Face then be processed i

在人脸识别当中，针对LPP是一个局部化的线性降维处理，我们先提出来先对其进行预处理，然后再利用LPP。-In face recognition, in view of the LPP is a localization of linear dimension reduction processing, we first put forward the preprocessing, and then re-use LPP

细菌觅食算法在人脸识别中的应用，图像经过小波变换预处理-The application of bacterial foraging algorithm in face recognition, image preprocessing by wavelet transform