1、首先使用下列命令安装OpenCV需要的依赖：
sudo apt-get -y install libopencv-dev build-essential cmake git libgtk2.0-dev pkg-config python-dev python-numpy libdc1394-22 libdc1394-22-dev libjpeg-dev libpng12-dev libtiff4-dev libjasper-dev libavcodec-dev libavformat-dev libswscale-dev libxine-dev libgstreamer0.10-dev libgstreamer-plugins-base0.10-dev libv4l-dev libtbb-dev libqt4-dev libfaac-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libtheora-dev libvorbis-dev libxvidcore-dev x264 v4l-utils unzip
2、下载OpenCV3
mkdir opencv cd opencv wget https://github.com/Itseez/opencv/archive/3.0.0-alpha.zip -O opencv-3.0.0-alpha.zip unzip opencv-3.0.0-alpha.zip
3、安装OpenCV
cd opencv-3.0.0-alpha mkdir build cd build cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D WITH_V4L=ON -D WITH_QT=ON -D WITH_OPENGL=ON .. make -j $(nproc) sudo make install
4、完成安装
sudo /bin/bash -c 'echo "/usr/local/lib" > /etc/ld.so.conf.d/opencv.conf' sudo ldconfig
这里建议重启系统；
Lets test it!
We will test to check if everything is working properly. Doesn’t matter if I say you should do this way if it doesn’t work, right? Come on! I’m assuming you just restart your computer after you have performed the above steps or the given script.
1st test: Running an OpenCV sample
First of all, we need to compile the samples. Worth saying that the commands below can be avoided by adding the options to build samples on the 3rd step of installation.
cd opencv/opencv-3.0.0-alpha/samples/ sudo cmake . sudo make -j $(nproc)
Now you can run a sample. I chose two, but feel free to run any other. The goal here is to prove that our OpenCV installation was a success. The samples we’re going to run are the FaceDetect and HoughtLines developed in C++.
cd cpp/ ./cpp-example-facedetect lena.jpg // (../data/lena.jpg) OpenCV 3.0 beta ./cpp-example-houghlines pic1.png // (../data/pic1.jpg) OpenCV 3.0 beta
Note 1: If you’re using OpenCV 3.0 beta, both images are inside “../data/” directory;
Note 2: To close the window with Lenna, just press ENTER. The same to finish HoughLines. Go on and run other samples;
2nd test: Running our own program
What about compiling something we made? Just below I am providing a simple program whose purpose is to display an image. Unzip it and run the commands below inside the folder you just created.
sudo cmake . sudo make ./DisplayImage lena.jpg
If everything went right, you’ll see Lenna. Press ENTER to close.
下载地址：https://download.csdn.net/download/cyf15238622067/10315684