centos6下安装opencv3

环境

centos6.5

opencv3.3.0

python3.4.9

下载

opencv可从GitHub下载https://github.com/opencv/opencv/tree/3.4.3可自行选择版本

python可从官网上下载https://www.python.org/downloads/source/

安装python

编译安装需要依赖gcc
yum install gcc -y

yum install openssl-devel -y

tar -zxvf Python-3.4.9.tgz
cd Python-3.4.9
./configure --prefix=/opt/python3
make
make install

这时默认的还是python2

mv /usr/bin/python /usr/bin/python_old2

创建python新链接

ln -s /opt/python3/bin/python3 /usr/bin/python

配置成功

但是这样直接该可能会对其他组件产生影响，比如在用yum的时候就会出File "/usr/bin/yum", line 30

这时需要修改/usr/bin/yum

安装opencv

先在python3中执行bin/pip3 install numpy opencv-python(目的在opencv编译后生成python库)

安装依赖包
yum install cmake gcc-c++ git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev -y
yum install ant -y（如果安装目录下需要java，则需要安装ant依赖）

安装ffmpeg

yum -y install epel-release
rpm -Uvh http://li.nux.ro/download/nux/dextop/el6/x86_64/nux-dextop-release-0-2.el6.nux.noarch.rpm（centos6）
rpm -Uvh http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-5.el7.nux.noarch.rpm（centos7）安装os进行安装

yum install ffmpeg ffmpeg-devel -y

unzip opencv-3.3.0.zip（3.3.0版本比较稳定）
cd opencv-3.3.0
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/opt/opencv ..

make

make isntall