cvGetTickFrequency  161 modules/calib3d/test/test_chesscorners_timing.cpp         float check_chessboard_time = float(_time01 - _time0)/(float)cvGetTickFrequency(); // in us
cvGetTickFrequency  165 modules/calib3d/test/test_chesscorners_timing.cpp         float find_chessboard_time = float(_time1 - _time01)/(float)cvGetTickFrequency();
cvGetTickFrequency 2592 modules/core/include/opencv2/core/core_c.h CVAPI(double) cvGetTickFrequency( void );
cvGetTickFrequency  243 samples/cpp/facedetect.cpp     printf( "detection time = %g ms\n", t/((double)cvGetTickFrequency()*1000.) );