ubuntu虚拟机安装opencv(宿主机为Win10)

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1. opencv官网(opencv.org)上找到最新版本(此处下载3.2.0版),下载opencv源码(Source code(zip)或者Source code(tar.gz)):

https://github.com/opencv/opencv/releases/tag/3.2.0

2. 将源码压缩文件解压到ubuntu目录,例如/home/yourname/Downloads/

注意:如果是虚拟机,不能放到共享文件夹中进行编译安装,在make时会失败,错误类似下边这样:

CMake Error: cmake_symlink_library: System Error: Operation not supported
CMake Error: cmake_symlink_library: System Error: Operation not supported
modules/core/CMakeFiles/opencv_core.dir/build.make:1424: recipe for target 'lib/libopencv_core.so.3.2.0' failed
make[2]: *** [lib/libopencv_core.so.3.2.0] Error 1
make[2]: *** Deleting file 'lib/libopencv_core.so.3.2.0'
CMakeFiles/Makefile2:1376: recipe for target 'modules/core/CMakeFiles/opencv_core.dir/all' failed
make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2
Makefile:162: recipe for target 'all' failed
make: *** [all] Error 2
root@ubuntu:/mnt/hgfs/ubuntu-share/1-software/opencv-3.2.0/release# 

3. 不要将编译和安装的文件生成在源码目录下,一般会新建一个文件夹放置生成的各种文件,例如:

guo@ubuntu:~/Downloads/opencv-3.2.0$ ls
opencv-3.2.0  opencv-3.2.0.zip  release

opencv-3.2.0是解压opencv-3.2.0.zip后的源码文件夹,新建了一个名为release的文件夹用于存放生成的各种文件

4. 安装前的准备工作(系统更新、安装依赖包等):

// 系统升级
sudo apt-get update
sudo apt-get upgrade
// OpenCV 2.2以后版本需要使用Cmake生成makefile文件,因此需要先安装cmake。ubuntu下安装cmake比较简单
apt-get install cmake

如果觉得ubuntu系统自带的cmake版本不符合要求,可以下载安装包。下载最新版的安装包:

http://www.cmake.org/cmake/resources/software.html

,但需要自己编译和安装,此处不累述。

// 安装依赖包
sudo apt-get install build-essential 
sudo apt-get install  libgtk2.0-dev libavcodec-dev libavformat-dev  libtiff4-dev  libswscale-dev libjasper-dev

5. 利用cmake检测编译环境,并生成makefile文件

cd release  
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ./opencv-3.2.0

注意最后的参数“./opencv-3.2.0”为源码文件夹的位置,里边包含了CMakeList.txt

6. 编译(比较慢,几分钟)

make

7. 安装

make install



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