Real-time face and eye detection in LabView using OpenCV Harr feature classifier

[Klemen]

(check out this link: https://decibel.ni.com/content/blogs/kl3m3n/2014/09/05/point-cloud-library-pcl-and-open-computer-vis...)

Hello,

I have been playing around with the face and eye detection algorithms in OpenCV and have again made a dll library, which can be called in Labview to perform face and eye tracking in real time (on my computer I achieve an average detection time of ~50 ms per loop, which equals ~20 fps using a webcamera with VGA resolution).

The algorithm first detects the faces in a live camera stream and then detects the eyes inside the "detected faces" regions of interest. The algorithm is based on Haar cascade classifier with OpenCV's default training samples.

I am attaching the dll and the source code along with the LabView sample code saved for LV2010. The dll was built using VS2010x86 and OpenCV 2.4.6.

I hope this helps someone in their project.

Be creative.

Best regards,

K

P.S.: Be careful to synchronize the path to the classifier files (can be seen in the source code). The LV algorithm tells you, if the classifiers are not loaded correctly.

P.P.S.: The .dll included detects only one face that corresponds to the biggest object in the scene. If you want multiple face detection, you need remove "CV_HAAR_FIND_BIGGEST_OBJECT" in the source code and rebuild the .dll. Or if you have any problems doing this, leave a comment and I will post the multi-face detection .dll.