當我第一次爲了做一個項目而接觸Opencv的時候，我按照網上的方法安裝了opencv2.2或者opecv2.3但是結果總是出問題。比如：ImportError: No module named opencv
後來終於明白問題出在哪個地方了，現在我把我的經歷分析給大家。希望對剛接觸Opencv的有所幫助
對於Python2.5的安裝我上面一片文章有所介紹。經測試沒有問題，然而，我需要在Python2.7上面運行。
後來我在網上看到了這段對話：
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.
大概意思是隨着版本的升級導入方法有變化，下面就是Python27的安裝方法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:
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.
下面是網上的翻譯版本：
1 .下載 OpenCV 2.3.1 。文中下載了OpenCV-2.3.1-win-superpack (大概124MB,解壓後1G多)。他不需編譯，使用方便 下載地址
2. OpenCV-2.3.1-win-superpack.exe是自解壓文件，直接運行。即可解壓。默認解壓到opencv文件夾裏。
3.下載numpy。opencv的python版需要該模塊。下載頁面在這裏 注意，下載和Python版本一致的numpy。文中下載的是numpy-1.6.1-win32-superpack-python2.7.exe，6.1M
4.運行numpy-1.6.1-win32-superpack-python2.7.exe
5.安裝python2.7，默認安裝在C:\Python27
好了，配置
opencv文件夾中，build->python->2.7 複製2.7下面的所有文件 到C:\Python27\Lib\site-packages 中
測試
打開opencv文件夾中的samples\python
雙擊drawing.py 如果沒有問題應該看到彩色條紋。
注意 這裏的其他樣例 有可能一閃而過，什麼都不顯示。一種原因是哪個腳本需要參數，另一種是腳本中寫圖片文件路徑錯誤，還有一種是urllib的問題，打開代碼看看，應該比較容易理解。
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.
同時由於Opencv沒有綁定Python,我們需要去下載opencv包