转载的，通过眨眼前后灰度图对比是别人眼，一个学习opencv工具的好例程。-Reproduced by blinking eyes of others around the grayscale contrast, a learning tool opencv good routine.

该源代码能够检测人脸中的特征点，并根据特征点进行眼睛区域跟踪。-The source code is able to detect feature points in the face and eye area according to feature points tracking.