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ubuntu 16.04 安装opencv

ubuntu 16.04 安装opencv

内容

1.安装cmake及其依赖环境

2.下载opencv

3.安装

3.1 下载解压:

3.2 进入解压之后的文件夹下新建build文件夹:

3.3 进入build文件夹:

3.4 cmake

3.5 进行编译

3.6 进行安装

4. 配置环境

1.安装cmake及其依赖环境

sudo apt-get install cmake
sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg-dev libswscale-dev libtiff5-dev
sudo apt-get install libgtk2.0-dev
sudo apt-get install pkg-config

配置完成后,可以在命令行输入

cmake -version

来检测cmake是否安装正确。

2.下载opencv

opencv安装包网址:https://opencv.org/releases/

点击Sources来进行下载

3.安装

3.1 下载解压:

3.2 进入解压之后的文件夹下新建build文件夹:

mkdir build

如下:

3.3 进入build文件夹:

cd build

3.4 cmake

该过程大概需要5分钟左右,根据计算机性能而定

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

3.5 进行编译

sudo make -j16

j 后面所跟数字为编译时所使用的线程数

3.6 进行安装

sudo make install

4. 配置环境

(1)执行

sudo gedit /etc/ld.so.conf

在ld.so.conf中加上   include /usr/local/lib

(2)执行

sudo ldconfig
sudo gedit /etc/bash.bashrc 

在 bash.bashrc 最后加上

PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig
export PKG_CONFIG_PATH

配置完成后将 bash.bashrc 文件source一下,执行

source /etc/bash.bashrc

(3)手动创建opencv.pc

cd /usr/local/lib
sudo mkdir pkgconfig && cd pkgconfig
sudo gedit opencv.pc

在opencv.pc 添加:

prefix=/usr/local
exec_prefix=${prefix}
includedir=/usr/local/include
libdir=/usr/local/lib
 
Name: OpenCV
Description: Open Source Computer Vision Library
Version: 4.4.5
Libs: -L${exec_prefix}/lib -lopencv_stitching -lopencv_superres -lopencv_videostab -lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_ccalib -lopencv_dnn_objdetect -lopencv_dpm -lopencv_face -lopencv_photo -lopencv_freetype -lopencv_fuzzy -lopencv_hdf -lopencv_hfs -lopencv_img_hash -lopencv_line_descriptor -lopencv_optflow -lopencv_reg -lopencv_rgbd -lopencv_saliency -lopencv_stereo -lopencv_structured_light -lopencv_phase_unwrapping -lopencv_surface_matching -lopencv_tracking -lopencv_datasets -lopencv_text -lopencv_dnn -lopencv_plot -lopencv_xfeatures2d -lopencv_shape -lopencv_video -lopencv_ml -lopencv_ximgproc -lopencv_calib3d -lopencv_features2d -lopencv_highgui -lopencv_videoio -lopencv_flann -lopencv_xobjdetect -lopencv_imgcodecs -lopencv_objdetect -lopencv_xphoto -lopencv_imgproc -lopencv_core
Libs.private: -ldl -lm -lpthread -lrt
Cflags: -I${includedir}

保存退出,执行:

pkg-config --modversion opencv

查看 opencv 版本

至此,opencv c++版本配置完成。

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