How to link opencv library on Ubuntu

 

 

 

 export PKG_CONFIG_PATH=/usr/local/opencv-3.4.0/lib/pkgconfig; pkg-config opencv --cflags --libs

-I/usr/local/opencv-3.4.0/include/opencv -I/usr/local/opencv-3.4.0/include -L/usr/local/opencv-3.4.0/lib -lopencv_dnn -lopencv_ml -lopencv_objdetect -lopencv_shape -lopencv_stitching -lopencv_superres -lopencv_videostab -lopencv_calib3d -lopencv_features2d -lopencv_highgui -lopencv_videoio -lopencv_imgcodecs -lopencv_video -lopencv_photo -lopencv_imgproc -lopencv_flann -lopencv_core