Ubuntu14.04 QtCreator中配置OpenCV

╰+哭是因爲堅強的太久メ 2022-09-21 01:11 149阅读 0赞

1. 先从sourceforge上下载OpenCV的最新源码（以OpenCV-2.4.3为例）

https://github.com/itseez/opencv

2. 解压到任意目录

tar xvfj OpenCV-2.4.3.tar.bz2

3. 进入源码目录，创建release目录

cd OpenCV-2.4.3

mkdir release

4. 可以看到在OpenCV目录下，有个CMakeLists.txt文件，需要事先安装一些软件

sudo apt-get install build-essential cmake libgtk2.0-dev pkg-config python-dev python-numpy libavcodec-dev libavformat-dev libswscale-dev

5.  进入release目录，安装OpenCV是所有的文件都会被放到这个release目录下

cd release

6. cmake编译OpenCV源码，安装所有的lib文件都会被安装到/usr/local目录下

cmake -D CMAKE\_BUILD\_TYPE=RELEASE -D CMAKE\_INSTALL\_PREFIX=/usr/local ..

7. 安装

sudo make install

8.至此，OpenCV安装完毕

头文件位于/usr/local/include

库文件位于/usr/local/lib

9.假设您已经安装好QtCreator，在qmake.conf中设置OpenCV路径

sudo gedit ~/qt4.8.6/mkspecs/default/qmake.conf(视个人安装路径而定)

向qmake.conf中添加如下内容

QMAKE\_INCDIR = /usr/local/include/opencv  
QMAKE\_LIBS = -lopencv\_imgproc  -lopencv\_core -lopencv\_highgui -lopencv\_ml  
以下部分放入qmake.conf或,pro中均可（本人是放在pro中，网上很多写的放在qmake.conf中，但是本人没成功）  
INCLUDEPATH += /usr/local/include/opencv \\  
               /usr/local/include/opencv2  
LIBS += /usr/local/lib/libopencv\_video.so  \\  
  /usr/local/lib/libopencv\_ts.so \\  
  /usr/local/lib/libopencv\_objdetect.so \\  
  /usr/local/lib/libopencv\_ml.so  \\  
  /usr/local/lib/libopencv\_legacy.so \\  
  /usr/local/lib/libopencv\_core.so \\  
  /usr/local/lib/libopencv\_features2d.so  \\  
  /usr/local/lib/libopencv\_imgproc.so \\  
  /usr/local/lib/libopencv\_highgui.so \\  
  /usr/local/lib/libopencv\_gpu.so \\  
  /usr/local/lib/libopencv\_flann.so   \\  
  /usr/local/lib/libopencv\_contrib.so \\  
  /usr/local/lib/libopencv\_calib3d.so

10.直接编译可能出现[error while loading shared libraries: libXXX.so.X: cannot open shared object file: No such file][error while loading shared libraries_ libXXX.so.X_ cannot open shared object file_ No such file]报错，执行以下命令即可

cd /etc  
sudo gedit ld.so.conf   （添加 /usr/local/lib）  
sudo ldconfig 更新

11.再次编译，成功

附编译Qt source过程

**tar \-xvzf qt-everywhere-opensource-src-4.8.6.tar.gz**

**cd qt-everywhere-opensource-src-4.8.6**

**./configure \-prefix /opt/qt-4.8.6-x11     （-prefix后面是安装目录）**

**make**

**sudo make install**

[error while loading shared libraries_ libXXX.so.X_ cannot open shared object file_ No such file]: http://blog.csdn.net/david_xtd/article/details/7625626