any sample code of eye blink detection

[Jesse Stone]

any sample code of eye blink detection
make sure it is a human
reference python
https://github.com/Practical-CV/EYE-BLINK-DETECTION-WITH-OPENCV-AND-DLIB

any c++ example?

[Jesse Stone]

//transfer from https://pyimagesearch.com/2017/04/24/eye-blink-detection-opencv-python-dlib/
static double eye_aspect_ratio(full_object_detection shape)
{
double distA_r = length(shape.part(37) - shape.part(41));
double distB_r = length(shape.part(38) - shape.part(40));
double distC_r = length(shape.part(36) - shape.part(39));
double distA_l = length(shape.part(43) - shape.part(47));
double distB_l = length(shape.part(44) - shape.part(46));
double distC_l = length(shape.part(42) - shape.part(45));

double ear_r    = (distA_r + distB_r) / (2.0 * distC_r);
double ear_l    = (distA_l + distB_l) / (2.0 * distC_l);
double ear_avg  = (ear_r + ear_l) / 2.0;

return ear_avg;

}

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