利用同心圆法对二值图像提取特征值，可以处理缩放 旋转后的图像-The use of concentric circles on extracting features of binary image value, can be dealt with rotating zoom image

VC++图像处理典型算法，包括图像灰度化，边缘检测，图像识别，提取特征值等-Typical VC++ image processing algorithms, including gray, edge detection, image recognition, feature extraction and other value

从图像中提取面部特征，然后根据这些特征值，恢复出图像-Extract facial features, then these eigenvalues ​ ​ and restore the image from the image