安装要求

Author: hirohe

README.md

@@ -12,6 +12,66 @@
 ###运行要求
   1. OpenCV 2.4.9 for Python
   2. Python 2.7
+  3. v4l2
+  4. PyQt4
 
 ###安装要求
-  ...
+
+  ```bash
+  sudo apt-get install build-essential cmake pkg-config python-dev libgtk2.0-dev libgtk2.0 zlib1g-dev libpng-dev libjpeg-dev libtiff-dev libjasper-dev libavcodec-dev swig unzip
+  ```
+
+  1. 启用v4l2
+  ```bash
+  sudo nano /etc/modules
+  # 增加一行记录
+  bcm2835-v4l2
+  # 重启后可以找到/dev/video0
+  
+  # 编译v4l2-util
+  apt-get install autoconf gettext libtool libjpeg8 libjpeg8-dev
+  git clone git://git.linuxtv.org/v4l-utils.git
+  cd v4l-utils/
+  sudo ./bootstrap.sh
+  ./configure
+  make
+  sudo make install
+  ```
+ 
+  2. 编译OpenCV 2.4.9
+ 
+  ```bash
+  wget https://jaist.dl.sourceforge.net/project/opencvlibrary/opencv-unix/2.4.9/opencv-2.4.9.zip
+  unzip opencv-2.4.9.zip
+  cd opencv-2.4.9/
+  cmake -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=/usr/local -DBUILD_PERF_TESTS=OFF -DBUILD_opencv_gpu=OFF -DBUILD_opencv_ocl=OFF
+  
+  # 要使OpenCV开启对v4l2的支持 cmake之后要有以下输出
+  # V4L/V4L2:                    Using libv4l (ver 1.13.0)
+  
+  make
+  sudo make install
+  ```
+  
+  3. 安装PyQt4
+  ```bash
+  sudo apt-get install python-qt4
+  ```
+  
+  4. 运行
+  ```bash
+  python main.py
+  ```
+  
+###注意
+  
+  该示例运行的屏幕分辨率为竖屏480 x 800，可以修改 /boot/config.txt 的以下配置
+  
+  [config.txt配置说明](https://www.raspberrypi.org/documentation/configuration/config-txt.md)
+  ```bash
+  hdmi_cvt=800 480 60 6
+  hdmi_group=2
+  hdmi_mode=87
+  # 设置屏幕旋转角度
+  display_rotate=3
+  ```