c++ - 检查库并在 opencv 中编译

Question

我输入这个命令来检查opencv中安装了哪些库，

pkg-config --libs opencv

我得到了以下输出:

/usr/local/lib/libopencv_calib3d.so
/usr/local/lib/libopencv_contrib.s
/usr/local/lib/libopencv_feature2d.so
/usr/local/lib/libopencv_flann.so
/usr/local/lib/libopencv_gpu.so
/usr/local/lib/libopencv_highgui.so
/usr/local/lib/libopencv_imgproc.so
/usr/local/lib/libopencv_legacy.so
/usr/local/lib/libopencv_ml.so
/usr/local/lib/libopencv_nonfree.so
/usr/local/lib/libopencv_objdetect.so
/usr/local/lib/libopencv_photo.so
/usr/local/lib/libopencv_stitching.so
/usr/local/lib/libopencv_ts.so
/usr/local/lib/libopencv_video.so
/usr/local/lib/libopencv_videostab.so

为了编译一个从文件中读取视频的文件，我应该给出什么适当的命令？

我试过使用 g++ -I/usr/include/opencv -lxcore -lhighgui -lm nameoffile.cpp但我一直收到错误，/usr/lib/ld cannot find -lxcore etc...

Answer 1

你可以尝试使用pkg-config --cflags --libs libname然后你就可以这样写了

g++ -I/usr/include/opencv -lxcore -lhighgui -lm nameoffile.cpp `pkg-config --cflags --libs opencv`

这样你就可以包含你想要链接的库的路径