Comparison of several kinds of image processing libraries

Author: Wang Xianrong

The http://www.cnblogs.com/xrwang/archive/2010/01/26/TheComparisonOfImageProcessingLibraries.html of the original;

Objective

Recently need to do some research and study of image processing, the first task is to select a suitable image processing class library. At present, the more well-known and full-featured image processing library has OPENCV, EMGUCV, aforge.net and so on. This article compares these libraries from license agreements, downloads, installations, documentation, ease of use, performance, and so on, and then gives a choice of recommendations, including my own.

License Agreement

Class Library	License Agreement	License Agreement URL	General Introduction
OpenCv	Bsd	Www.opensource.org/licenses/bsd-license.html	You can use whatever you want with the original BSD protocol statement.
Emgucv	GPL v3	Http://www.gnu.org/licenses/gpl-3.0.txt	Your product must also use the GPL protocol, open source and free
Business Authorization	Http://www.emgu.com/wiki/files/CommercialLicense.txt	A commercial product that can be used for a closed source after giving money
Aforge.net	LGPL v3	Http://www.gnu.org/licenses/lgpl.html	If you do not modify the class library source code, the product that references the class library can be closed source and/or charged

All three kinds of libraries can be used to develop commercial products, but EMGUCV need to pay; because I'm just learning and researching, so these license agreements don't matter to me. But given that we are in China, if we have a thick skin, go to his license agreement.

Download

can easily download to these class libraries, download addresses are:

Class Library	Download Address
OpenCv	http://sourceforge.net/projects/opencvlibrary/files/
Emgucv	Http://www.emgu.com/wiki/index.php/Download_And_Installation
Aforge.net	Http://www.aforgenet.com/framework/downloads.html

installation

These class libraries are relatively simple to install, run the installer directly, and click "Next" to complete. However, OPENCV will need some additional processing after installation to be used in VS2008, and in http://www.opencv.org.cn there is an article entitled "VC2008 Express Installation OPENCV 2.0" Article specifically describes how to install OPENCV.

Class Library	Ease of installation	Note
OpenCv	Relatively easy	VC under the use of need to recompile
Emgucv	Easy
Aforge.net	Easy

People who believe that reading this article will not be bothered by installation.

Document Information

Less

Class library	Overall rating	Book	Web site /td>	Document	Example	Community	Comments
OpenCv	Medium	in English	in English	in English	More	Chinese forum	has Chinese information but is not complete
EMGUCV	Less	No	(+	No) [+] [+] [+]]	Less	English forum	Forum Popular bad
AFo Rge.net	Less	No	English	English	English forum	Forum Popular bad

OPENCV has some Chinese information, the other two are all in English, but EMGUCV is based on OPENCV, most OPENCV data can be used for EMGUCV, and Aforge.net is the native. NET class library, which has many extensions to GDI +. Some MSDN information can be used for reference. If you are not able to read English documents on the basis of a dictionary, you can basically give up using these libraries.

Ease of use

Ease of Use this thing, the subjective will and personal ability has a great impact on it, the following is my opinion:

Class Library	Ease of Use	Note
OpenCv	Relatively poor	OpenCV most functions are provided in the form of C-style functions, with a small portion of the functionality in C + +