ubuntu命令行编译opencv程序

学习了下，记录一下：

1、

ubuntu安装完opencv后（一般都装在了/usr/local这个目录下）检查下 /usr/local/lib/pkgconfig目录下是否有/opencv.pc

一般情况下都会有的

然后

sudo gedit /usr/local/lib/pkgconfig/opencv.pc

在文件中加入：

includedir_old2=${prefix}/include/opencv2

最后一行修改为：

Cflags: -I${includedir_old} -I${includedir_old2} -I${includedir_new}

保存 退出

编译一下：

g++ Untitled1.cpp -o 1 `pkg-config opencv --cflags --libs opencv`

(我的用gcc出错了）

成功

2、`pkg-config opencv --cflags --libs opencv`比较繁琐，每次都要输入，考虑用CVCONF代替之

新开终端

sudo gedit .bashrc

在最后一行添加

export CVCONF="-I/usr/local/include/opencv -I/usr/local/include/opencv2 -I/usr/local/include -L/usr/local/lib -lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_gpu -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_nonfree -lopencv_objdetect -lopencv_ocl -lopencv_photo -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videostab -lrt -lpthread -lm -ldl"

这个是我的，不同pc不知道一样不一样

也可以这样：

export CVCONF="`pkg-config opencv --cflags --libs opencv`"

保存后退出

su一下进入root

执行：source .bashrc

测试一下：echo $CVCONF

输出

-I/usr/local/include/opencv -I/usr/local/include/opencv2 -I/usr/local/include -L/usr/local/lib -lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_gpu -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_nonfree -lopencv_objdetect -lopencv_ocl -lopencv_photo -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videostab -lrt -lpthread -lm -ldl

新开终端编译一下：

g++ test.cpp -o test $CVCONF

成功