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

对一幅图片进行直方图均衡，并输出概率非零灰度数，概率非零灰度中最大概率、最小概率、最大最小概率之比。-On an image histogram equalization and output nonzero probability gray number, the probability of the largest non-zero probability of gray, the minimum probability, the ratio of the maximum and minim

阈值分割、边缘检测、线性变换、均衡直方图等图像预处理的一些代码-Some code for image preprocessing, such as threshold segmentation, edge detection, linear transformation and equalization histogram