说明：  用c实现司机状态判别程序。首先对图片进行平滑处理，然后将司机红眼图片与正常图片进行相减，得出司机眼睛闭开程度从而判别司机状态。判别速度非常快，但是对图片的要求较高
(c achieve drivers with the state program of the judgment. First the images were smoothed, and then the driver with the normal red-eye photo images for subtraction. come driver opened eyes closed in order to judge the extent state drivers. Discriminant very rapidly, but the pictures are higher)