QT/WebKit::OpenCV

OpenCV下载编译安装
    Download url:
    cd ~/Workshop
    tar xvf OpenCV-2.3.0rc.tar.bz2
    cd OpenCV-2.3.0
    mkdir release
    cd release
    cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_PYTHON_SUPPORT=ON ..
    make
    sudo make install
    在ubuntu系统中你也可以通过新立得去安装opencv，非常方便，不过它的头文件默认路径是/usr/include，库的默认路径是/usr/lib/，由于版本差异，相应地库名也不一样了。


OpenCV配置
让系统知道opencv库的路径以便在QT中使用
    方法一：
        sudo vi /etc/ld.so.conf.d/opencv.conf
            增加/usr/local/lib
        sudo ldconfig
    方法二：
        export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

通过OpenCV显示图片
    /*displayImage/image.cpp*/
       #include
   #include
   using namespace cv;

   int main( int argc, char** argv )
   {
       Mat image;
       image = imread( argv[1], 1 );

       if( argc != 2 || !image.data )
       {
           printf( "No image data \n" );
           return -1;
       }

       namedWindow( "Display Image", CV_WINDOW_AUTOSIZE );
       imshow( "Display Image", image );
       waitKey(0);
       return 0;
   }

    qmake -project
    vi displayImage.pro
        修改 
            INCLUDEPATH += /usr/local/include/opencv
            LIBS += /usr/local/lib/libopencv_core.so \
                         /usr/local/lib/libopencv_highgui.so \
                         /usr/local/lib/libopencv_ml.so     
    qmake
    make
    ./displayImage test.jpg


Reference
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