I am trying to implement the online face recognition by Shervin which is available in his website: http://www.shervinemami.co.cc/faceRecognition.html
I downloaded the zip file and tried to run it but i am not able to do it. I am using Microsoft Visual Studio 2010 Ultimate.
I am having this errors.
error LNK2019: unresolved external symbol _cvEigenDecomposite referenced in function "void __cdecl learn(char *)" (?learn@@YAXPAD@Z)
error LNK2019: unresolved external symbol _cvCalcEigenObjects referenced in function "void __cdecl doPCA(void)" (?doPCA@@YAXXZ)
Not sure what these errors are and how to solve it...
I don't know what OpenCV version you are using, but if we assume that you have v2.3.0 you need to link your project with the library: opencv_legacy230.lib , which is where those symbols are defined.