安装适用于python3的OpenCV [英] Install OpenCV for python3
本文介绍了安装适用于python3的OpenCV的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
I have followed many manuals/tutorials how to install OpenCV, but all seem to work for my python2.7 instead of python3.4 where I want it. I'm following this tutorial but without using virtualenv. When making the
$cmake \
-D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=/usr/local \
-D INSTALL_C_EXAMPLES=OFF \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules \
-D BUILD_EXAMPLES=ON \
-D PYTHON_EXECUTABLE=/usr/bin/python3.4 \
-D PYTHON_PACKAGES_PATHS=/usr/local/lib/python3.4/dist-packages/ \
-D PYTHON_NUMPY_INCLUDE_DIRS=/usr/local/lib/python3.4/dist-packages/numpy/core/include ..
comand它列出了两个版本:
comand it list both versions:
-- Python 2:
-- Interpreter: /usr/bin/python2.7 (ver 3.4.3)
-- Libraries: NO
-- numpy: /usr/local/lib/python2.7/dist-packages/numpy/core/include (ver 1.10.4)
-- packages path: lib/python2.7/dist-packages
--
-- Python 3:
-- Interpreter: /usr/bin/python3.4 (ver 3.4.3)
-- Libraries: NO
-- numpy: /usr/local/lib/python3.4/dist-packages/numpy/core/include (ver 1.10.4)
-- packages path: lib/python3.4/dist-packages
--
-- Python (for build): /usr/bin/python2.7
但是省略了python_executable标志，并使用python2.7进行构建(在继续安装后，我检查了它在python2.7上的工作能力).
But omits the python_executable flag and uses the python2.7 for building (I checked it worked on python2.7 after continuing with the installation).
如何使它使用python3.4进行构建?
我尝试过的事情:
运行此cmake时:
cmake \
-D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=$(python3 -c "import sys; print(sys.prefix)") \
-D PYTHON_EXECUTABLE=$(which python3) ..
它正确列出了库:
-- Python 2:
-- Interpreter: /usr/bin/python2.7 (ver 3.4.3)
-- Libraries: NO
-- numpy: /usr/local/lib/python2.7/dist-packages/numpy/core/include (ver 1.10.4)
-- packages path: lib/python2.7/dist-packages
--
-- Python 3:
-- Interpreter: /usr/bin/python3.4 (ver 3.4.3)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.4m.so (ver 3.4.3)
-- numpy: /usr/local/lib/python3.4/dist-packages/numpy/core/include (ver 1.10.4)
-- packages path: lib/python3.4/dist-packages
--
-- Python (for build): /usr/bin/python2.7
但是仍然列出要构建的python2.7.
But still list the python2.7 to build for.
相关信息:
$whereis python3
python3: /usr/bin/python3.4dm-config /usr/bin/python3.4m /usr/bin/python3.4m-config /usr/bin/python3.4-config /usr/bin/python3 /usr/bin/python3.4-dbg-config /usr/bin/python3.4 /usr/bin/python3.4-dbg /usr/bin/python3.4dm /etc/python3 /etc/python3.4 /usr/lib/python3.0 /usr/lib/python3.5 /usr/lib/python3 /usr/lib/python3.4 /usr/lib/python3.2 /usr/lib/python3.1 /usr/lib/python3.3 /usr/bin/X11/python3.4dm-config /usr/bin/X11/python3.4m /usr/bin/X11/python3.4m-config /usr/bin/X11/python3.4-config /usr/bin/X11/python3 /usr/bin/X11/python3.4-dbg-config /usr/bin/X11/python3.4 /usr/bin/X11/python3.4-dbg /usr/bin/X11/python3.4dm /usr/local/lib/python3.4 /usr/include/python3.4m /usr/include/python3.4 /usr/include/python3.4dm /usr/share/python3 /usr/share/man/man1/python3.1.gz
推荐答案
在删除CMakeCache.txt后，我找到了答案.rm CMakeCache.txt我重新运行cmake命令:
I found the answer, after removing the CMakeCache.txt rm CMakeCache.txtI rerun the cmake command:
cmake \
-D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=$(python3 -c "import sys; print(sys.prefix)") \
-D PYTHON_EXECUTABLE=/usr/bin/python3.4 \
-D BUILD_EXAMPLES=ON \
-D INSTALL_C_EXAMPLES=OFF \
-D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules \
-D INSTALL_PYTHON_EXAMPLES=ON ..
输出为:
-- Python 2:
-- Interpreter: /usr/bin/python3.4 (ver 3.4.3)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.4m.so (ver 3.4.3)
-- numpy: /usr/local/lib/python3.4/dist-packages/numpy/core/include (ver 1.10.4)
-- packages path: lib/python3.4/dist-packages
--
-- Python 3:
-- Interpreter: /usr/bin/python3.4 (ver 3.4.3)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.4m.so (ver 3.4.3)
-- numpy: /usr/local/lib/python3.4/dist-packages/numpy/core/include (ver 1.10.4)
-- packages path: lib/python3.4/dist-packages
--
-- Python (for build): /usr/bin/python3.4
--
所以我坚持安装:
make -j4
sudo make install
sudo ldconfig
这篇关于安装适用于python3的OpenCV的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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