WINDOW_KEEPRATIO   50 samples/cpp/starter_imagelist.cpp     namedWindow("image", WINDOW_KEEPRATIO); //resizable window;
WINDOW_KEEPRATIO   44 samples/cpp/starter_video.cpp         namedWindow(window_name, WINDOW_KEEPRATIO); //resizable window;
WINDOW_KEEPRATIO  156 samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/main_detection.cpp   namedWindow("REAL TIME DEMO", WINDOW_KEEPRATIO);
WINDOW_KEEPRATIO  104 samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/main_registration.cpp   namedWindow("MODEL REGISTRATION", WINDOW_KEEPRATIO);