在完成其他SO答案中推荐的几个不同的教程,指南和步骤后,我没有设法安装OpenCV以便在我的Ubuntu 16.04系统中使用Python 3.5。
只要OpenCV 3.1.0正式支持Python 3.x,我该如何正确安装它?
答案 0 :(得分:2)
在收集了不同教程和指南的步骤和故障排除解决方案之后,我在我的系统中管理了相应的Python 3.5和OpenCV库。
安装是在virtualenv下执行的,因此无需清理系统中以前的安装尝试占用空间。
按照此处介绍的步骤安装:
最后,可能需要20Gb的空间,如果您之前尚未安装任何这些软件包。
你需要gcc-4.9 +来编译OpenCV,我用gcc-5.4测试它
sudo apt-get build-dep -y opencv
sudo apt-get install python3-venv
python3.5 -m venv python35-opencv31
source ~/python35-opencv31/bin/activate
pip install matplotlib
pip install numpy
pip install scipy
pip install scikit-learn
pip install cython
pip install -U scikit-image
sudo apt-get install build-essential cmake libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
mkdir ~/git
cd ~/git
git clone https://github.com/opencv/opencv.git
cd ./opencv
git checkout 3.1.0
cd ~/git
git clone https://github.com/Itseez/opencv_contrib.git
cd ./opencv_contrib
git checkout 3.1.0
ffmpeg libs
sudo -i
mkdir /usr/include/ffmpeg
cd /usr/include/ffmpeg
ln -sf /usr/include/x86_64-linux-gnu/libavcodec/*.h ./
ln -sf /usr/include/x86_64-linux-gnu/libavformat/*.h ./
ln -sf /usr/include/x86_64-linux-gnu/libswscale/*.h ./
如果在编译期间,在尝试查找某些ffmpeg库时出现任何问题,请卸载ffmpeg和build it from source。
与opencv_contrib模块的python绑定
echo "\nfind_package(HDF5)\ninclude_directories(\${HDF5_INCLUDE_DIRS})" >> ~/git/opencv/modules/python/common.cmake
source ~/python35-opencv31/bin/activate
mkdir ~/opencv3.1.0
cd ~/git/opencv/
mkdir release
cd ./release
export CC=$(which gcc)
export CXX=$(which g++)
cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=~/opencv3.1.0 \
-D INSTALL_C_EXAMPLES=OFF \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D OPENCV_EXTRA_MODULES_PATH=~/git/opencv_contrib/modules \
-D BUILD_EXAMPLES=ON \
-D CUDA_NVCC_FLAGS="-D_FORCE_INLINES" ..
输出应包括:
-- Python 2:
-- Interpreter: /home/rodrigo/anaconda/bin/python2.7 (ver 2.7.12)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython2.7.so (ver 2.7.12)
-- numpy: /home/rodrigo/anaconda/lib/python2.7/site-packages/numpy/core/include (ver 1.10.4)
-- packages path: lib/python2.7/site-packages
--
-- Python 3:
-- Interpreter: /home/rodrigo/python35-opencv/bin/python3 (ver 3.5.2)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.5m.so (ver 3.5.2)
-- numpy: /home/rodrigo/python35-opencv/lib/python3.5/site-packages/numpy/core/include (ver 1.11.2)
-- packages path: lib/python3.5/site-packages
--
-- Python (for build): /home/rodrigo/anaconda/bin/python2.7
现在:
make
如果成功,那么:
make install
cd ~/python35-opencv31/lib/site-packages
ln -s ~/opencv3.1.0/lib/python3.5/site-packages/cv2.cpython-35m-x86_64-linux-gnu.so
测试它是否按预期工作:
cd ~
source ~/python35-opencv31/bin/activate
python
import cv2
cv2.__version__
它应导入cv2并显示版本号3.1.0。