emptyDataTest     281 modules/features2d/test/test_descriptors_regression.cpp         emptyDataTest();
emptyDataTest      66 modules/features2d/test/test_detectors_regression.cpp     void emptyDataTest();
emptyDataTest     240 modules/features2d/test/test_detectors_regression.cpp     emptyDataTest();
emptyDataTest      69 modules/features2d/test/test_matchers_algorithmic.cpp     void emptyDataTest();