ubuntu16.04 + opencv3.4.5 + QT5.1.2

1、下载源码

wget https://github.com/opencv/opencv/archive/3.4.5.zip

2、解压后进入文件夹

mkdir build cd build

3、安装依赖包

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

以下依赖包可以装上

sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev

4、编译安装

cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=/home/wkl/software/opencv-3.2.0/opencv_contrib-3.2.0/modules/ ..

如果不安装opencv_contrib模块，则第二步的命令为：

cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..
sudo make 
sudo make install

5、配置

sudo sh -c 'echo "/usr/local/lib" > /etc/ld.so.conf.d/opencv.conf' 
sudo ldconfig

6、测试

修改.pro配置文件

INCLUDEPATH += /usr/local/include \
               /usr/local/include/opencv \
              /usr/local/include/opencv2 \

LIBS += /usr/local/lib/libopencv_highgui.so \
        /usr/local/lib/libopencv_core.so \
        /usr/local/lib/libopencv_imgproc.so \
        /usr/local/lib/libopencv_imgcodecs.so \