Installing OpenCV on Windows 7 for Python 2.7
2012-04-29 17:27
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当我第一次为了做一个项目而接触Opencv的时候,我按照网上的方法安装了opencv2.2或者opecv2.3但是结果总是出问题。比如:ImportError: No module named opencv
后来终于明白问题出在哪个地方了,现在我把我的经历分析给大家。希望对刚接触Opencv的有所帮助
对于Python2.5的安装我上面一片文章有所介绍。经测试没有问题,然而,我需要在Python2.7上面运行。
后来我在网上看到了这段对话:
As of OpenCV 2.2.0, the package name for the Python bindings is "cv".The old bindings named "opencv" are not maintained any longer. You might have to adjust your code. Seehttp://opencv.willowgarage.com/wiki/PythonInterface.
The official OpenCV installer does not install the Python bindings into your Python directory. There should be a Python2.7 directory inside your OpenCV 2.2.0 installation directory. Copy the whole Lib folder from OpenCV\Python2.7\ to C:\Python27\ and make sure
your OpenCV\bin directory is in the Windows DLL search path.
Alternatively use the opencv-python installers at http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv.
大概意思是随着版本的升级导入方法有变化,下面就是Python27的安装方法
I have always struggled when trying to set up OpenCV for Python before. So I decide to write this post to help myself in the future and share with you =). My setup is for OpenCV 2.2 but I think you can apply for any version of OpenCV.
Step
1: Download and install Python
2.7 from http://www.python.org/getit/releases/2.7.2/.
You need to install the 32bit
version of Python. OpenCV currently does not work with Python 64bit.
Step
2: Download and install OpenCV
2.2 from http://sourceforge.net/projects/opencvlibrary/files/.
Note that this version only supports Python 2.7 (not 3.x).
Step
3: Download and install NumPy
1.6.1 and SciPy
0.9.0 from: (you need to choose the files which support Python 2.7)
http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/
http://sourceforge.net/projects/scipy/files/scipy/0.9.0/
Step
4:Setup Windows Path in Environment Variables
Add “C:/Python2.7;C:/OpenCV2.2/bin”
to PATH variable (You need to change the directory to where you install Python and OpenCV).
Create PYTHONPATH variable and put “C:/OpenCV2.2/Python2.7/Lib/site-packages”
as value.
Update: For
OpenCV2.3, There are two other options for this step:
As Kyle commented below,
you can copy the content of folder “C:\opencv\build\python\2.7”
(for opencv 2.2: C:/OpenCV2.2/Python2.7/Lib/site-packages) to folder “C:\Python27\Lib\site-packages“
OR,
add these two lines at the beginning of your program:
Yosh!!! You have finished setup OpenCV for Python in Windows. Open Python IDLE, create a new file, add the program below and run it:
(This is the program to show your webcam)
UPDATE:
OpenCV has just released version 2.3.1 which is more stable than 2.2 I think. You can download ithere and
try it (the setup is same as 2.2).
About the black screen you encounter with the example, I think it’s because your camera is not supported. My camera works fine. You can find more information here.
下面是网上的翻译版本:
1 .下载 OpenCV 2.3.1 。文中下载了OpenCV-2.3.1-win-superpack (大概124MB,解压后1G多)。他不需编译,使用方便 下载地址
2. OpenCV-2.3.1-win-superpack.exe是自解压文件,直接运行。即可解压。默认解压到opencv文件夹里。
3.下载numpy。opencv的python版需要该模块。下载页面在这里 注意,下载和Python版本一致的numpy。文中下载的是numpy-1.6.1-win32-superpack-python2.7.exe,6.1M
4.运行numpy-1.6.1-win32-superpack-python2.7.exe
5.安装python2.7,默认安装在C:\Python27
好了,配置
opencv文件夹中,build->python->2.7 复制2.7下面的所有文件 到C:\Python27\Lib\site-packages 中
测试
打开opencv文件夹中的samples\python
双击drawing.py 如果没有问题应该看到彩色条纹。
注意 这里的其他样例 有可能一闪而过,什么都不显示。一种原因是哪个脚本需要参数,另一种是脚本中写图片文件路径错误,还有一种是urllib的问题,打开代码看看,应该比较容易理解。
The official OpenCV installer does not install the Python bindings into your Python directory. There should be a Python2.7 directory inside your OpenCV 2.2.0 installation directory. Copy the whole Lib folder from OpenCV\Python2.7\ to C:\Python27\ and make sure
your OpenCV\bin directory is in the Windows DLL search path.
Alternatively use the opencv-python installers at http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv.
同时由于Opencv没有绑定Python,我们需要去下载opencv包
后来终于明白问题出在哪个地方了,现在我把我的经历分析给大家。希望对刚接触Opencv的有所帮助
对于Python2.5的安装我上面一片文章有所介绍。经测试没有问题,然而,我需要在Python2.7上面运行。
后来我在网上看到了这段对话:
As of OpenCV 2.2.0, the package name for the Python bindings is "cv".The old bindings named "opencv" are not maintained any longer. You might have to adjust your code. Seehttp://opencv.willowgarage.com/wiki/PythonInterface.
The official OpenCV installer does not install the Python bindings into your Python directory. There should be a Python2.7 directory inside your OpenCV 2.2.0 installation directory. Copy the whole Lib folder from OpenCV\Python2.7\ to C:\Python27\ and make sure
your OpenCV\bin directory is in the Windows DLL search path.
Alternatively use the opencv-python installers at http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv.
大概意思是随着版本的升级导入方法有变化,下面就是Python27的安装方法
Setup OpenCV for Python in Windows
I have always struggled when trying to set up OpenCV for Python before. So I decide to write this post to help myself in the future and share with you =). My setup is for OpenCV 2.2 but I think you can apply for any version of OpenCV.Step
1: Download and install Python
2.7 from http://www.python.org/getit/releases/2.7.2/.
You need to install the 32bit
version of Python. OpenCV currently does not work with Python 64bit.
Step
2: Download and install OpenCV
2.2 from http://sourceforge.net/projects/opencvlibrary/files/.
Note that this version only supports Python 2.7 (not 3.x).
Step
3: Download and install NumPy
1.6.1 and SciPy
0.9.0 from: (you need to choose the files which support Python 2.7)
http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/
http://sourceforge.net/projects/scipy/files/scipy/0.9.0/
Step
4:Setup Windows Path in Environment Variables
Add “C:/Python2.7;C:/OpenCV2.2/bin”
to PATH variable (You need to change the directory to where you install Python and OpenCV).
Create PYTHONPATH variable and put “C:/OpenCV2.2/Python2.7/Lib/site-packages”
as value.
Update: For
OpenCV2.3, There are two other options for this step:
As Kyle commented below,
you can copy the content of folder “C:\opencv\build\python\2.7”
(for opencv 2.2: C:/OpenCV2.2/Python2.7/Lib/site-packages) to folder “C:\Python27\Lib\site-packages“
OR,
add these two lines at the beginning of your program:
1 | import sys |
2 | sys.path.append("C:\OpenCV2.2\Python2.7\Lib\site-packages") |
1 | import cv |
2 |
3 | cv.NamedWindow( "camera" , 1 ) |
4 | capture = cv.CaptureFromCAM( 0 ) |
5 |
6 | while True : |
7 | img = cv.QueryFrame(capture) |
8 | cv.ShowImage( "camera" , img) |
9 | if cv.WaitKey( 10 ) = = 27 : |
10 | break |
11 | cv.DestroyWindow( "camera" ) |
UPDATE:
OpenCV has just released version 2.3.1 which is more stable than 2.2 I think. You can download ithere and
try it (the setup is same as 2.2).
About the black screen you encounter with the example, I think it’s because your camera is not supported. My camera works fine. You can find more information here.
下面是网上的翻译版本:
1 .下载 OpenCV 2.3.1 。文中下载了OpenCV-2.3.1-win-superpack (大概124MB,解压后1G多)。他不需编译,使用方便 下载地址
2. OpenCV-2.3.1-win-superpack.exe是自解压文件,直接运行。即可解压。默认解压到opencv文件夹里。
3.下载numpy。opencv的python版需要该模块。下载页面在这里 注意,下载和Python版本一致的numpy。文中下载的是numpy-1.6.1-win32-superpack-python2.7.exe,6.1M
4.运行numpy-1.6.1-win32-superpack-python2.7.exe
5.安装python2.7,默认安装在C:\Python27
好了,配置
opencv文件夹中,build->python->2.7 复制2.7下面的所有文件 到C:\Python27\Lib\site-packages 中
测试
打开opencv文件夹中的samples\python
双击drawing.py 如果没有问题应该看到彩色条纹。
注意 这里的其他样例 有可能一闪而过,什么都不显示。一种原因是哪个脚本需要参数,另一种是脚本中写图片文件路径错误,还有一种是urllib的问题,打开代码看看,应该比较容易理解。
The official OpenCV installer does not install the Python bindings into your Python directory. There should be a Python2.7 directory inside your OpenCV 2.2.0 installation directory. Copy the whole Lib folder from OpenCV\Python2.7\ to C:\Python27\ and make sure
your OpenCV\bin directory is in the Windows DLL search path.
Alternatively use the opencv-python installers at http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv.
同时由于Opencv没有绑定Python,我们需要去下载opencv包
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