Vision Development Module (the Vision library for LabVIEW) does not include any face recognition algorithms. It contains lower level tools you can use to create your own face recognition algorithm.
You can however interface Vision Development Module with third party libraries, such as OpenCV. OpenCV implements a face recognition algorithm.
National Instruments recently released the
NI Vision OpenCV Utilities package, which facilitates the integration of OpenCV algorithms with LabVIEW. This is not part of Vision Development Module, but you can download the package with package manager.
Here is the link to the white paper that describes how this works and how to download it.
http://www.ni.com/white-paper/53072/en/
This links describes how to do face recognition with OpenCV:
Essentially, what you'll need to do is
1) Use Vision Acquisition Software to acquire your image in LabVIEW
2) Create a dll in which you'll implement the face recognition software using the OpenCV functions. The links above explain how to do that and contain examples on how to compile it and interface it with LabVIEW.
Hope this will help you getting started. Good luck!
Best regards,
Christophe
