I want to write a eigenface program using C++ with OpenCV but i don't know how to work this function cvTermCriteria();and i wish anybody help me for understand this function and this is portion of code where use this function:
CvTermCriteria calcLimit;
// set the PCA termination criterion
calcLimit = cvTermCriteria( CV_TERMCRIT_ITER, 3, 1);
i wish a clear example for explain how to use this function