QT+OpenCV+OpenGL

 

Ubuntu 10.04.3 LTS ("fresh" install) OpenCV 2.3.1 Qt SDK version 1.2.0 for Linux/X11 32-bit

http://opencv.willowgarage.com/wiki/InstallGuide_Linux

 

参考这份文档：

  http://code.google.com/p/qt-opencv-multithreaded/wiki/Documentation

 

下载OpenCV-2.3.1a.tar.bz2

打开终端

$ sudo apt-get update

$ sudo apt-get install build-essential cmake libgtk2.0-dev libtiff4-dev libjasper-dev libavformat-dev libswscale-dev libavcodec-dev libjpeg62-dev

进入OpenCV-2.3.1a.tar.bz2所在目录

$ bzip2 -d OpenCV-.2.3.1a.tar.bz2

$ tar -xvf OpenCV-2.3.1a.tar

$ cd OpenCV-2.3.1/

$ mkdir release

$ cd release

$ cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..

$ make

$ sudo make install

$ sudo ldconfig -v

$ export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

在.pro文件中加入

 LIBS += `pkg-config opencv --cflags --libs`

或者

LIBS += -lopencv_core -lopencv_imgproc -lopencv_highgui -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann

 可以了

 

方法二：

$ sudo apt-cache search opencv

$ sudo apt-get install libcv-dev libcv4 libcvaux-dev libcvaux4 libhighgui-dev libhighgui4  opencv-doc

$ sudo gedit /home/zhang/QtSDK/Desktop/Qt/4.8.0/gcc/mkspecs/default/qmake.conf

添加

QMAKE_INCDIR = /usr/include/opencv
QMAKE_LIBS = -lcvaux -lcv -lcxcore -lhighgui -lml

下面的也可加在pro文件里，在qmake.conf中更方便

INCLUDEPATH += /usr/include/opencv

LIBS += /usr/lib/libcv.so \
/usr/lib/libcvaux.so \
/usr/lib/libcxcore.so \
/usr/lib/libhighgui.so \
/usr/lib/libml.so

 

 

OpenGL

sudo apt-get install mesa-common-dev libgl1-mesa-dev libglu1-mesa-dev freeglut3-dev

如果项目里不需要glut的话，后面两个都可以不要。

测试 加上-lglut

g++ sample.cpp -o sample -lglut
./sample

 

 

QTCreator中使用

OpenCV：

在.pro文件中加入

 LIBS += `pkg-config opencv --cflags --libs`

 具体参考上面的内容

 

OpenGL

在.pro文件中加入

QT +=opengl

要用glut.h

LIBS += -lglut 

 

ubuntu查看OpenGL版本信息

sudo apt-get install mesa-utils

glxinfo | grep 'OpenGL version string'