focalsFromHomography   67 modules/stitching/include/opencv2/stitching/detail/autocalib.hpp void CV_EXPORTS focalsFromHomography(const Mat &H, double &f0, double &f1, bool &f0_ok, bool &f1_ok);
focalsFromHomography  114 modules/stitching/src/autocalib.cpp             focalsFromHomography(m.H, f0, f1, f0ok, f1ok);