ubuntu16.04源码安装opencv3.4.1

1. 进入http://opencv.org/releases.html下载opencv 3.4.1代码

2. 解压zip文件，并进入opencv3.4.1目录

unzip opencv-3.4.1.zip
cd opencv-3.4.1
mkdir build
cd build

4. 创建安装目录

sudo mkdir /usr/local/opencv3.4.1

5. cmake

cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local/opencv3.4.1 …

6. make and make install

make -j12
sudo make install

7. 修改环境变量

vim ~/.bashrc
zsh用户
vim ~/.zshrc

添加如下内容，并source ~/.bashrc使马上生效

export PKG_CONFIG_PATH="/usr/local/opencv3.4.1/lib/pkgconfig"
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/opencv3.4.1/lib"

zsh用户

for opencv3.4.1

export PKG_CONFIG_PATH=PKG_CONFIG_PATH:/usr/local/opencv3.4.1/lib/pkgconfig
export LD_LIBRARY_PATH=LD_LIBRARY_PATH:/usr/local/opencv3.4.1/lib
(需要在=后面添加$,之所以没有添加是因为添加之后会乱码)

查看opencv版本

pkg-config --modversion opencv