此程序为opencv中的寻找角点的程序，而且是寻找最大特征值的角点-This program opencv to find the corner points of the program is to find the corner of the largest eigenvalue

角点监测，主要利用GoodFeatureToTrack函数，在图像中寻找具有大特征值的角点。效果良好。-Corner monitoring, using mainly GoodFeatureToTrack function, in the image to find a corner point having the largest eigenvalue. To good effect.

运用OpenCV，去求得特征向量与特征值，并验证是否正确。(OpenCV use, to obtain eigenvector and eigenvalue and verify whether it is right.)