如何在Ubuntu 16.04上安装适用于Python 2.7的openCV 2.4.13？

Question

我已尝试过很多在线帖子来安装opencv，但他们不适用于Ubuntu 16.04。请问有谁可以给​​我安装openCV 2.4.13的步骤吗？

Answer 1

有一个我曾经做过的脚本，用于安装最新版本的OpenCV（3.2，截至本答复的最新更新） 这是它的链接

https://github.com/rsnk96/Ubuntu-Setup-Scripts/blob/master/opencvDirectInstall.sh

注意：对于Ubuntu 16.10+，您必须进行一些次要的依赖项更改。看看相同的评论。

由于您不想安装opencv contrib，并且您特别想要opencv 2.4.13，因此我修改了下面的脚本。我建议你在执行之前仔细阅读脚本并了解发生的事情

sudo apt-get update
sudo apt-get upgrade -y

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

sudo apt-get install python3-numpy python3-pip python3-scipy python3-matplotlib python-dev python-matplotlib python-numpy python-scipy -y

sudo apt-get install python-pip python-tk libqt4-dev libqt4-opengl-dev  libeigen3-dev yasm libfaac-dev libopencore-amrnb-dev libopencore-amrwb-dev libtheora-dev libvorbis-dev libxvidcore-dev libx264-dev sphinx-common texlive-latex-extra libv4l-dev libdc1394-22-dev libavcodec-dev libavformat-dev libswscale-dev default-jdk ant -y


echo "GUI and openGL extensions"
sudo apt-get install qt4-default libqt4-opengl-dev libvtk5-qt4-dev libgtk2.0-dev libgtkglext1 libgtkglext1-dev -y

echo "image manipulation libraries"
sudo apt-get install libpng3 pngtools libpng12-dev libpng12-0 libpng++-dev -y
sudo apt-get install libjpeg-dev libjpeg9 libjpeg9-dbg libjpeg-progs libtiff5-dev libtiff5 libtiffxx5 libtiff-tools libjasper-dev libjasper1  libjasper-runtime zlib1g zlib1g-dbg zlib1g-dev -y

echo "video manipulation libraries"
sudo apt-get install libavformat-dev libavutil-ffmpeg54 libavutil-dev libxine2-dev libxine2 libswscale-dev libswscale-ffmpeg3 libdc1394-22 libdc1394-22-dev libdc1394-utils -y

echo "codecs"
sudo apt-get install libavcodec-dev -y
sudo apt-get install libfaac-dev libmp3lame-dev -y
sudo apt-get install libopencore-amrnb-dev libopencore-amrwb-dev -y
sudo apt-get install libtheora-dev libvorbis-dev libxvidcore-dev -y
sudo apt-get install ffmpeg x264 libx264-dev -y
sudo apt-get install libv4l-0 libv4l v4l-utils -y

echo "multiproccessing library"
sudo apt-get install libtbb-dev -y

echo "finally download and install opencv"
mkdir opencv
cd opencv
wget "https://github.com/Itseez/opencv/archive/2.4.13.zip"
unzip opencv-2.4.13.zip

cd opencv
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=RELEASE \
 -DCMAKE_INSTALL_PREFIX=/usr/local \
 -DINSTALL_C_EXAMPLES=ON \
 -DINSTALL_PYTHON_EXAMPLES=ON \
 -DBUILD_EXAMPLES=ON \
 -DBUILD_opencv_cvv=OFF \
 -DBUILD_NEW_PYTHON_SUPPORT=ON \
 -DWITH_TBB=ON \
 -DWITH_V4L=ON \
 -DWITH_QT=ON \
 -DWITH_OPENGL=ON \
 -DWITH_VTK=ON ..

echo "making and installing"
make -j8
sudo make install

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

echo "Congratulations! You have just installed OpenCV. And that's all, folks! :P"

P.S。创建一个脚本文件，然后只执行脚本文件，而不是将其逐行复制粘贴到终端中。您可以通过复制所有内容，将其放在扩展名为.sh的文件中，然后使用$ ./filename.sh

从终端运行该.sh文件来实现。

Answer 2

根据this source，来自Ubuntu 16.04，你现在可以这样做来为Python2.7安装OpenCV：

pip install opencv-python

或用于python3：

pip3 install opencv-python

有关详细信息，请参阅here。

我在我的机器上测试了这个，它很有用，很棒的东西:)。

这比我到目前为止遇到的所有其他方法容易得多。

Answer 3

sudo apt-get install build-essential cmake git pkg-config
sudo apt-get install libjpeg8-dev libtiff4-dev libjasper-dev libpng12-dev
sudo apt-get install libgtk2.0-dev
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt-get install libatlas-base-dev gfortran
sudo apt-get install python2.7-dev
sudo pip install numpy
sudo apt-get install python-opencv

然后你可以尝试一下：

$ python
Python 2.7.6 (default, Oct 26 2016, 20:30:19) 
[GCC 4.8.4] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv
>>> import cv2

Answer 4

如果您的计算机上安装了多个opencv，现在我告诉您在python中选择opencv版本的最直接，最有效，最简单的方法。

您可以键入以下命令以检查python中当前的opencv版本

import cv2
cv2.__version__

python中的

opencv路径是在系统变量PYTHONPATH中设置的，您可以使用echo $PYTHONPATH回显此变量。

如果我想在python中使用opencv3.x，然后使用vi或gedit在主文件夹中打开.bashrc，请将此内容添加到最后

export PYTHONPATH=/home/ismart/ipa2/devel/lib/python2.7/dist-packages:/home/ismart/catkin_ws/install_isolated/lib/python2.7/dist-packages:/usr/local/opencv3.x/lib/python2.7/dist-packages

用您的路径替换