ubuntu16.04安装opencv3.4.1

安装Eigen3

sudo apt-get install libeigen3-dev
#拷贝
sudo cp -r /usr/local/include/eigen3/Eigen /usr/local/include

参考:https://www.cnblogs.com/newneul/p/8256803.html

安装依赖项

sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev
# 处理图像所需的包
sudo apt-get install -y python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
sudo apt-get install -y libavcodec-dev libavformat-dev libswscale-dev libv4l-dev liblapacke-dev
# 处理视频所需的包
sudo apt-get install -y libxvidcore-dev libx264-dev
# 优化opencv功能
sudo apt-get install -y libatlas-base-dev gfortran
sudo apt-get install -y ffmpeg

在自己要安装opencv的位置下载opencv3.4.1 github source:
可以到gitub下载:(可能比较慢)

wget https://github.com/opencv/opencv/archive/3.4.1.zip
wget https://github.com/opencv/opencv_contrib/archive/3.4.1.zip

sudo apt-get install aria2
aria2c -c -s10 -k1M -x16 --enable-rpc=false -o "opencv-3.4.1.zip" --header "User-Agent: netdisk;5.3.4.5;PC;PC-Windows;5.1.2600;WindowsBaiduYunGuanJia" --header "Referer: https://pan.baidu.com/disk/home" --header "Cookie: BDUSS=paa3hGV3dYbnpoQlRDOG5jYnlqSEVlU3lDbXVNV2dybFF6ZTEzbzZJZ0JlMmxiQVFBQUFBJCQAAAAAAAAAAAEAAACyHgg5aGhnw~vR78zsz8IAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHuQVsB7kFbS3; pcsett=1538270082-2dc1426f5364346f2129902dc3319353" "https://pcs.baidu.com/rest/2.0/pcs/file?method=download&app_id=250528&path=%2FOpencv%2Fopencv-3.4.1.zip"

下载opencv contrib:

aria2c -c -s10 -k1M -x16 --enable-rpc=false -o "opencv_contrib-3.4.1.zip" --header "User-Agent: netdisk;5.3.4.5;PC;PC-Windows;5.1.2600;WindowsBaiduYunGuanJia" --header "Referer: https://pan.baidu.com/disk/home" --header "Cookie: BDUSS=paa3hGV3dYbnpoQlRDOG5jYnlqSEVlU3lDbXVNV2dybFF6ZTEzbzZJZ0JlMmxiQVFBQUFBJCQAAAAAAAAAAAEAAACyHgg5aGhnw~vR78zsz8IAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHuQVsB7kFbS3; pcsett=1538270082-2dc1426f5364346f2129902dc3319353" "https://pcs.baidu.com/rest/2.0/pcs/file?method=download&app_id=250528&path=%2FOpencv%2Fopencv_contrib-3.4.1.zip"

下载cmake的时候需要下载的文件:(这一步不是必须,可能会用到,博主没有用到这个):

aria2c -c -s10 -k1M -x16 --enable-rpc=false -o "cache.zip" --header "User-Agent: netdisk;5.3.4.5;PC;PC-Windows;5.1.2600;WindowsBaiduYunGuanJia" --header "Referer: https://pan.baidu.com/disk/home" --header "Cookie: BDUSS=paa3hGV3dYbnpoQlRDOG5jYnlqSEVlU3lDbXVNV2dybFF6ZTEzbzZJZ0JlMmxiQVFBQUFBJCQAAAAAAAAAAAEAAACyHgg5aGhnw~vR78zsz8IAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHuQVsB7kFbS3; pcsett=1538273029-13c03449b730a73ee159ac325a27deb6" "https://pcs.baidu.com/rest/2.0/pcs/file?method=download&app_id=250528&path=%2FOpencv%2Fopencv3.4.1%E7%BC%96%E8%AF%91%E6%97%B6%E9%9C%80%E8%A6%81%E4%B8%8B%E8%BD%BD%E7%9A%84%E6%96%87%E4%BB%B6%2Fcache.zip"

按道理上面的下载好,分别解压,然后如下操作就可以编译通过了

unzip opencv-3.4.1.zip
unzip opencv_contrib-3.4.1.zip

将opencv_contrib-3.4.1 拷贝到opencv-3.4.1文件夹下

cd opencv-3.4.1
mv ../opencv_contrib-3.4.1/   ./opencv-3.4.1/
mkdir build
mkdir install
cd build
#cmake的时候选项对应自己的情况作相应的修改,一下 -D CMAKE_INSTALL_PREFIX= 后面的地址改为你要安装的地址
#CUDA_ARCH_BIN CUDA_ARCH_PTX指显卡的计算能力,GeForce GTC 1080Ti 的计算能力为6.1 可以在https://developer.nvidia.com/cuda-gpus查询
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/home/hhg/Documents/opencv-3.4.1/Install -D OPENCV_EXTRA_MODULES_PATH=../opencv_contrib-3.4.1/modules -D WITH_CUDA=ON -D WITH_CUBLAS=1 -D CUDA_ARCH_BIN="6.1" -D CUDA_ARCH_PTX="6.1" -D INSTALL_C_EXAMPLES=OFF -D INSTALL_PYTHON_EXAMPLES=ON -D WITH_OPENGL=ON -D WITH_V4L=ON WITH_NVCUVID=ON ..
#(-j16为多进程编译,加快速度,依你自己电脑的实际情况设置)
make -j16
sudo make install

编译的时候出错:
…
[ 83%] Built target opencv_ccalib
[ 83%] Processing OpenCL kernels (ximgproc)
Scanning dependencies of target opencv_ximgproc
/home/hhg/Documents/opencv-3.4.1/opencv_contrib-3.4.1/modules/rgbd/src/odometry.cpp:41:45: fatal error: unsupported/Eigen/MatrixFunctions: No such file or directory
compilation terminated.
modules/rgbd/CMakeFiles/opencv_rgbd.dir/build.make:134: recipe for target ‘modules/rgbd/CMakeFiles/opencv_rgbd.dir/src/odometry.cpp.o’ failed
make[2]: *** [modules/rgbd/CMakeFiles/opencv_rgbd.dir/src/odometry.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs…
[ 83%] Built target opencv_structured_light
…

sudo gedit /home/hhg/Documents/opencv-3.4.1/opencv_contrib-3.4.1/modules/rgbd/src/odometry.cpp

修改:
#include<unsupported/Eigen/MatrixFunctions>
为:
#(此处为你最上面安装eigen的时候的路径,可以在computer下搜索MatrixFunctions确定路径位置)
#include</usr/include/eigen3/unsupported/Eigen/MatrixFunctions>

设置opencv环境变量:

#设置环境变量,这里依据自己上面设置的安装路径来设置
echo "#set opencv environments
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
export LD_LIBRARY_PATH=/usr/local/lib
">>~/.bashrc
source ~/.bashrc
#查看当前opencv使用的版本
pkg-config opencv --modversion

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