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Python安裝OpenCV的示例代碼

 更新時間:2020年03月05日 09:42:17   作者:D.D.U  
這篇文章主要介紹了Python安裝OpenCV的示例代碼,本文給大家介紹的非常詳細(xì),對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值,需要的朋友可以參考下

OpenCV介紹

OpenCV是一個基于BSD許可(開源)發(fā)行的跨平臺計算機(jī)視覺庫,可以運(yùn)行在Linux、Windows、Android和Mac OS操作系統(tǒng)上。它輕量級而且高效——由一系列 C 函數(shù)和少量 C++ 類構(gòu)成,同時提供了Python、Ruby、MATLAB等語言的接口,實(shí)現(xiàn)了圖像處理和計算機(jī)視覺方面的很多通用算法。

OpenCV用C++語言編寫,它的主要接口也是C++語言,但是依然保留了大量的C語言接口。該庫也有大量的Python、Java and MATLAB/OCTAVE(版本2.5)的接口。這些語言的API接口函數(shù)可以通過在線文檔獲得。如今也提供對于C#、Ch、Ruby,GO的支持。

OpenCV 擁有包括 500 多個C函數(shù)的跨平臺的中、高層 API。它不依賴于其它的外部庫——盡管也可以使用某些外部庫。

所有新的開發(fā)和算法都是用C++接口。一個使用CUDA的GPU接口也于2010年9月開始實(shí)現(xiàn)。

OpenCV 為Intel Integrated Performance Primitives(IPP)提供了透明接口。這意味著如果有為特定處理器優(yōu)化的 IPP 庫,OpenCV 將在運(yùn)行時自動加載這些庫。

注:OpenCV 2.0版的代碼已顯著優(yōu)化,無需IPP來提升性能,故2.0版不再提供IPP接口。

好了,下面開始今天的正文。

安裝python-3.7.3-amd64.exe

命令行進(jìn)入到你Python的安裝目錄中的Scripts下:D:\Program Files\Python37\Scripts

安裝pip

進(jìn)入Python安裝目錄下的Scripts路徑,執(zhí)行 easy_install.exe pip

安裝wheel

進(jìn)入Python安裝目錄下的Scripts路徑,執(zhí)行 pip install wheel

安裝numpy

進(jìn)入Python安裝目錄下的Scripts路徑,執(zhí)行 pip install numpy

安裝opencv

進(jìn)入Python安裝目錄下的Scripts路徑,執(zhí)行 pip install opencv-python

Microsoft Windows [版本 10.0.17134.706]
(c) 2018 Microsoft Corporation。保留所有權(quán)利。

C:\Users\LiuJing>D:

D:\>cd D:\Program Files\Python37\Scripts

D:\Program Files\Python37\Scripts>easy_install.exe pip
Searching for pip
Best match: pip 19.0.3
Adding pip 19.0.3 to easy-install.pth file
Installing pip-script.py script to d:\program files\python37\Scripts
Installing pip.exe script to d:\program files\python37\Scripts
Installing pip3-script.py script to d:\program files\python37\Scripts
Installing pip3.exe script to d:\program files\python37\Scripts
Installing pip3.7-script.py script to d:\program files\python37\Scripts
Installing pip3.7.exe script to d:\program files\python37\Scripts

Using d:\program files\python37\lib\site-packages
Processing dependencies for pip
Finished processing dependencies for pip

D:\Program Files\Python37\Scripts>pip install wheel
Collecting wheel
 Downloading https://files.pythonhosted.org/packages/96/ba/a4702cbb6a3a485239fbe9525443446203f00771af9ac000fa3ef2788201/wheel-0.33.1-py2.py3-none-any.whl
Installing collected packages: wheel
Successfully installed wheel-0.33.1
You are using pip version 19.0.3, however version 19.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

D:\Program Files\Python37\Scripts>pip install numpy
Collecting numpy
 Downloading https://files.pythonhosted.org/packages/4e/9d/c129d78e6b942303b762ccfdf1f8339de80c5e6021b14ef0c99ec5bdc6aa/numpy-1.16.3-cp37-cp37m-win_amd64.whl (11.9MB)
  100% |████████████████████████████████| 11.9MB 197kB/s
Installing collected packages: numpy
Successfully installed numpy-1.16.3
You are using pip version 19.0.3, however version 19.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

D:\Program Files\Python37\Scripts>pip install opencv-python
Collecting opencv-python
 Downloading https://files.pythonhosted.org/packages/a3/50/04d0669afe884f137c2f490642756e8c4a658254300a9eaf253d1e643085/opencv_python-4.1.0.25-cp37-cp37m-win_amd64.whl (37.3MB)
  100% |████████████████████████████████| 37.4MB 150kB/s
Requirement already satisfied: numpy>=1.14.5 in d:\program files\python37\lib\site-packages (from opencv-python) (1.16.3)
Installing collected packages: opencv-python
Successfully installed opencv-python-4.1.0.25
You are using pip version 19.0.3, however version 19.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

D:\Program Files\Python37\Scripts>
import cv2

img = cv2.imread("01.jpg")
cv2.imshow("1", img)
cv2.waitKey(10000)

如果能導(dǎo)入并顯示圖片則成功

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