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Python uses OpenCV library for simple meteorological remote sensing image computing. The full name of OpenCV is Open Source Computer Vision Library, which is a cross-platform Computer Vision Library. OpenCV is a product launched and developed by Intel. It is issued with BSD license and can be used free of charge in the

This article source address Http://www.jianshu.com/p/9acc85d0ff16Pythonis an elegant language, concise grammar, powerful features. Of course, the rich third-party library, more able to accelerate the development. So the question is, how do you install these third-party libraries (packages)?There are few ways to install third-party libraries. Here are some tips.Source InstallationMany third-party libraries are open source, almost all can github find th

ways to easily optimize the performance. PILPIL is a python image processing library. In my opinion, Pil is so powerful that it is not easy to say. It can open dozens of image formats, including JPG, PNG, and BMP. In addition, it also provides many image processing functions, such as enhancement and filtering algorithms, for more information, see my previous article "using

How to obtain the local IP address using the standard library in python Standard Library Python has a powerful standard library. The core of Python only contains common types and functions such as numbers, strings, lists, dictiona

This article is mainly for you to introduce the Python implementation of the library automatic booking function, with a certain reference value, interested in small partners can refer to This article for you to share the Python implementation of the library workshop automatic booking of the specific code for your refe

I've been wanting to learn these days . Python for large data processing, but there is a problem with the library file to be expanded, here is a direct demonstration:1. First download python3.5 or python2.7 on the Python official website ;2. Here I am using the Python2.7 version , originally python2.6 Version below to install the third-party

The content here is based on the Linux process and Linux text stream. The main function of the subprocess package is to execute external commands and programs. For example, I need to use wget to download files. I call the wget program in Python. In this sense, subprocess functions are similar to shell. Subprocess and common encapsulation functions when we run python, we create and run the content here based

is the same, but the first readability is better than the second one, it is recommended to import the module in the following order, and generally import all the modules in the file header Python Standard library Third-party modules Application Custom Modules You can also import modules inside a function so that the imported module scope is local1.2.2 Importing a module's properties u

Python ORM Overview As a wonderful language, Python has many ORM libraries besides SQLAlchemy. In this article, we'll look at several popular optional ORM libraries in the future to get a better glimpse of the python ORM situation. By writing a script to read and write 2 tables, person and address to a simple database, we can better understand the pros and cons

calling thread acquires the Gil again.Mixing threads in C and Pythonmixed with C, Python, and threads, some threads are created in C, beyond the control of the Python interpreter, and some threads also use the functions in the Python C API to ensure proper initialization and management of the Python Global Interpreter

Usually in Linux under the use of Python, today the woman ticket suddenly said let help to make some pictures into a resolution, as a programmer, this duplication of work or to the computer bar.Needless to say, open cmd to see if there is a PIL (Python Imaging Library) under Windows Python, it is not very strong, Wood

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!Python's standard library is a powerful force for Python, as we've already described in the previous article. Because the standard library involves a wide range of applications, it is necessary to learn some background knowledge.Hardware principlesThis part need

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!Python implements multithreading primarily through the threading package in the standard library . In today's network era, each server receives a large number of requests. The server can handle these requests in a multi-threaded manner to improve the read and write efficiency of the network ports.

In Digital image processing, there are specific processing algorithms for different image formats. So, before we do the image processing, we need to think about the format of the image we want to design and implementation of the algorithm. Based on this requirement, this paper uses the image processing library pil in Python to realize the conversion of different image formats.For color images, regardless of

We know that one of the major advantages of python is its scalability. On this basis, a large number of third-party extension libraries are derived. Here, we will summarize the libraries we have come into use for your convenience next time. 1. eventlet Address: http://eventlet.net/ Eventlet is built around the concept of green threads that are launched to do network-related work. as mentioned in the introduction, eventlet can be used to deal wit

Introduction to the ImageFont module of Python image processing library PIL The ImageFont module defines classes with the same name, that is, the ImageFont class. Instances of this class store bitmap fonts for the text () method of the ImageDraw class. PIL uses its own font file format to store bitmap fonts. You can use the pilfont toolkit to convert the BDF and PCF font Descriptors (Xwindow font format) to

Ansible is a python package, is a complete unpack and play software, the only requirement for clients is that SSH has python, and python-simplejson packages, deployment simple to heinous. The following article will give you the main introduction of Ansible as a Python module librar