【昇腾】【玩转Atlas200DK系列】Atlas 200 DK安装python3的hiai库以及opencv

【昇腾】开发板上安装python2的hiai库和opencv库

Matrix是已经支持phthon接口了，但是发现目前python的hiai库并没有自动安装，需要自己安装；

话不多说下面是安装步骤：

步骤1. 开发板联网，如果已联网则跳过该步骤；

          否则请参考以下链接配置开发板联网（https://bbs.huaweicloud.cn/forum/thread-26546-1-1.html ）

           接下来需要在开发板上配置arm的源（编辑/etc/apt/sources.list内容替换为如下中科大的源或者清华的源）；

中科大源
deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial main multiverse restricted universe
deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-backports main multiverse restricted universe
deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-proposed main multiverse restricted universe
deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-security main multiverse restricted universe
deb http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-updates main multiverse restricted universe
deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial main multiverse restricted universe
deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-backports main multiverse restricted universe
deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-proposed main multiverse restricted universe
deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-security main multiverse restricted universe
deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ xenial-updates main multiverse restricted universe

清华源：

deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ xenial main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ xenial-security main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ xenial-updates main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ xenial-backports main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ xenial main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ xenial-security main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ xenial-updates main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ xenial-backports main multiverse restricted universe

更换源以后注意执行：sudo apt-get update

步骤2. python3 hiai 库安装

1. 安装依赖库

   apt-get install python3-setuptools python3-pip python-funcsigs python3-dev build-essential

2. 安装依赖的python库

   pip3 install numpy Enum34 future

3. 将附件中的hiai_py3_install.sh拷贝到开发板。脚本下载地址 https://gitee.com/Atlas200DK/sample-pythonClassifyDemo/blob/master/scripts/python3_hiai_install.sh

4. 登录开发板，切换到root用户，执行安装脚本

   ./hiai_py3_install.sh

  6. 命令行执行

      python3

      import hiai

     测试安装是否成功

步骤3. 在开发板上为Python3安装OpenCV

在帖子：https://bbs.huaweicloud.cn/forum/thread-28882-1-1.html中介绍了为Python2安装OpenCV的方法，一条apt-get install python-opencv命令即可。但无法找到能够直接这么安装的arm的源，在这里只能给大家介绍源码编译方式为Python3安装OpenCV：

注意：以下命令均在root用户下执行；

• 1. 安装构建opencv的工具：

  apt-get install build-essential -y

  apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev libv4l-dev -y

• 2. 下载源码

  git clone https://github.com/opencv/opencv.git

  git clone https://github.com/opencv/opencv_contrib.git

• 3. 在opencv中构建环境

  cd opencv

  mkdir release

  cd release/

  cmake -D BUILD_opencv_python3=YES -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_LIBV4L=ON -D OPENCV_EXTRA_MODULES=../../opencv_contrib/modules -D PYTHON3_LIBRARIES=/usr/lib/arm-linux-gnueabihf/libpython3.5m.so -D PYTHON3_NUMPY_INCLUDE_DIRS=/usr/local/lib/python3.5/dist-packages/numpy/core/include/ ..

• 4. 编译

  make -j8

• 5. 安装并更新动态库

  make install

  ldconfig