树莓派opencv的安装

树莓派安装opencv的教程层出不穷，但是能用的很少。我这个教程是亲自安装成功的。

我之前安装过好几次opencv2.49都失败了，唯独这个opencv3.1成功了。

下面开始安装吧

1.准备

sudo apt-get install build-essential git cmake pkg-config

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

sudo apt-get install python-dev python-numpy libjpeg-dev libjasper-dev libdc1394-22-dev

sudo apt-get install libjpeg8-dev

sudo apt-get install libtiff5-dev

sudo apt-get install libjasper-dev

sudo apt-get install libpng12-dev

sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev

sudo apt-get install libatlas-base-dev gfortran

2.下载opencv

cd /home/pi

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

cd opencv

git checkout 3.0.0

3.安装opencv_contrib：

cd /home/pi

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

cd opencv_contrib

git checkout 3.0.0

4.安装python

sudo apt-get install python2.7-dev

5.安装opencv

进入opencv3.1文件夹

cmake .  # cmake+空格+"."

sudo make

sudo make install

sudo /bin/bash -c 'echo "/usr/local/lib" > /etc/ld.so.conf.d/opencv.conf'

sudo ldconfig

6.编译sample

cd ~/opencv/samples

sudo cmake .

sudo make -j $(nproc)

7.运行测试程序

进入opencv3.1文件夹

cd samples

cd cpp/

./cpp-example-facedetect lena.jpg

我在网上找了个图片， 进行测试。