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  Dec 25, 2017     WenYuan     OpenCV   UPDATE: Jun 5, 2018

Ubuntu 18.04 安裝 OpenCV 與建置 C++ 編譯環境

跟著以下步驟, 將指令複製貼上執行, 就可以在你的 Ubuntu 上建置編譯 OpenCV C/C++ 的環境

注意： 這只適用在 Linux Debian 以及 MacOS 系統上，Windows 不適用哦!

1. 更新系統

$ sudo apt-get update
$ sudo apt-get upgrade


2. 下載 OpenCV 的相依套件

$ sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
$ sudo apt-get install python3.5-dev python3-numpy libtbb2 libtbb-dev
$ sudo apt-get install libjpeg-dev libpng-dev libtiff5-dev libjasper-dev libdc1394-22-dev libeigen3-dev libtheora-dev libvorbis-dev libxvidcore-dev libx264-dev sphinx-common libtbb-dev yasm libfaac-dev libopencore-amrnb-dev libopencore-amrwb-dev libopenexr-dev libgstreamer-plugins-base1.0-dev libavutil-dev libavfilter-dev libavresample-dev


3. 下載 OpenCV

$ sudo su
$ cd /opt
$ git clone https://github.com/Itseez/opencv.git
$ git clone https://github.com/Itseez/opencv_contrib.git


4. 編譯與安裝 OpenCV

因為要編譯 OpenCV 以及建置環境, 所以這個環節需要一點時間

$ cd opencv
$ mkdir release
$ cd release
$ mkdir my_build_dir
$ cd my_build_dir
$ cmake -D BUILD_TIFF=ON -D WITH_CUDA=OFF -D ENABLE_AVX=OFF -D WITH_OPENGL=OFF -D WITH_OPENCL=OFF -D WITH_IPP=OFF -D WITH_TBB=ON -D BUILD_TBB=ON -D WITH_EIGEN=OFF -D WITH_V4L=OFF -D WITH_VTK=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=/opt/opencv_contrib/modules /opt/opencv/
$ make -j4
$ make install
$ ldconfig
$ exit
$ cd ~


5. 查看你的 OpenCV 版本

$ pkg-config --modversion opencv


6. 寫個簡單的程式來編譯看看

/* A simple example */
#include "opencv2/opencv.hpp"

using namespace cv;

int main(void){
    Mat srcImg = imread("picture.jpg");
    
    imshow("srcImg", srcImg);
    waitKey(0);
    
    return 0;
}
  • 編譯與執行
$ g++ main.cpp -o output `pkg-config --cflags --libs opencv`
$ ./output

上面的 main.cpp 請改成你自己程式的名稱


Reference