在 Raspberry pi 3 中安装 openCV 失败
Install openCV in Raspberry pi 3 fails
当我尝试在 RAspberry Pi 3 B+ 中安装 OpenCV 时，出现以下错误：
$pip install opencv-python
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
ERROR: Could not find a version that satisfies the requirement opencv-python (from versions:
none)
ERROR: No matching distribution found for opencv-python
我也试过其他方法：
pip install opencv-contrib-python
pip3 install opencv-python
python3.6 -m pip install opencv-python
都报同样的上述错误！
我尝试了其他几种方法：
sudo apt install python3-opencv
sudo apt-get install libopencv-dev python-opencv
仍然无法导入 cv2
ModuleNotFoundError: No module named 'cv2'
我试过menpo频道
conda install -c menpo opencv
PackagesNotFoundError: The following packages are not available from current channels:
请帮忙。现在怎么办？
OpenCv 目前在 Raspbian 9-Stretch 上工作。
更新 os 系统：
sudo apt-get update
sudo apt-get upgrade
2) 安装依赖项：
sudo apt-get install build-essential cmake pkg-config
sudo apt-get install libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt-get install libxvidcore-dev libx264-dev
sudo apt-get install libgtk2.0-dev libgtk-3-dev
sudo apt-get install libatlas-base-dev gfortran
3) 安装Python3和Pip3:
sudo apt-get install python3-dev
sudo apt-get install python3-pip
4) 安装Opencv:
pip3 install opencv-python
5) Opencv 和相机的额外依赖项：
sudo apt-get install libqtgui4
sudo modprobe bcm2835-v4l2
sudo apt-get install libqt4-test
瞧！已安装 OpenCv2。
当我尝试在 RAspberry Pi 3 B+ 中安装 OpenCV 时，出现以下错误：
$pip install opencv-python
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
ERROR: Could not find a version that satisfies the requirement opencv-python (from versions:
none)
ERROR: No matching distribution found for opencv-python
我也试过其他方法：
pip install opencv-contrib-python
pip3 install opencv-python
python3.6 -m pip install opencv-python
都报同样的上述错误！
我尝试了其他几种方法：
sudo apt install python3-opencv
sudo apt-get install libopencv-dev python-opencv
仍然无法导入 cv2
ModuleNotFoundError: No module named 'cv2'
我试过menpo频道
conda install -c menpo opencv
PackagesNotFoundError: The following packages are not available from current channels:
请帮忙。现在怎么办？
OpenCv 目前在 Raspbian 9-Stretch 上工作。 更新 os 系统：
sudo apt-get update
sudo apt-get upgrade
2) 安装依赖项：
sudo apt-get install build-essential cmake pkg-config
sudo apt-get install libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt-get install libxvidcore-dev libx264-dev
sudo apt-get install libgtk2.0-dev libgtk-3-dev
sudo apt-get install libatlas-base-dev gfortran
3) 安装Python3和Pip3:
sudo apt-get install python3-dev
sudo apt-get install python3-pip
4) 安装Opencv:
pip3 install opencv-python
5) Opencv 和相机的额外依赖项：
sudo apt-get install libqtgui4
sudo modprobe bcm2835-v4l2
sudo apt-get install libqt4-test
瞧！已安装 OpenCv2。