CentOS 7 安装Opencv3.4 笔记

安装 ffmpeg
下载 ffmpeg-4.0.2.tar.bz2

tar -jxvf  ffmpeg-4.0.2.tar.bz2
./configure --disable-yasm --enable-shared --prefix=/usr/local/ffmpeg
make
make install 
vim /etc/profile 
export FFMPEG_HOME=/usr/local/ffmpeg
export PATH=$FFMPEG_HOME/bin:$PATH
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
vi /etc/ld.so.conf
/usr/local/ffmpeg/lib
ldconfig
ffmpeg -version

安装cmake

yum install cmake*

gtk2.0使用yum安装

yum install gtk2-devel

安装杂七杂八依赖

yum install -y cmake gcc gcc-c++ gtk+-devel gimp-devel gimp-devel-tools gimp-help-browser zlib-devel libtiff-devel libjpeg-devel libpng-devel gstreamer-devel libavc1394-devel libraw1394-devel libdc1394-devel jasper-devel jasper-utils swig python libtool nasm
rpm -import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
vim /etc/profile 
export FFMPEG_HOME=/usr/local/ffmpeg
export PATH=$FFMPEG_HOME/bin:$PATH
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/ffmpeg/lib/pkgconfig:/usr/loal/lib 

下载opencv 3.4

mkdir build
cmake  -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/download/opencv-3.4.2 ..