Feb 18, 2015 In this tutorial I show how to use the OpenALPR, (Open Automatic License Plate Recognition) engine to detect text on a license plate recognition application. Tesseract is an optical character.
OpenALPR is an automatic number-plate recognitionlibrary written in C++. The software is distributed in both a commercial and open source version.
History[edit]
Mime video player free download for windows 7. OpenALPR was originally developed by a two-man team led by Matt Hill.[1] The open source software became available as a free download at the end of 2015.[4] In January 2016, Steve Lewis joined as a Vice President of Business Development from EMC and led sales efforts, marketing and go-to-market strategy. [5] In March 2016, OpenALPR launched paid Cloud API service[6] and in February 2017 introduced the OpenALPR agent for Axis Communications cameras.[7]
In August 2017 an Australian web developer Tait Brown became known by creating an alternative to an 86 million AUD project of Victoria Police by using OpenALPR.[8]In March 2018 ProgrammableWeb added OpenALPR to its list of Recognition APIs.[9] Novume Solutions signed a letter of intent to acquire all of the assets of OpenALPR in September 2018 [10] and closed on the sale on March 13, 2019.[11] Matt Hill signed an employment agreement with Novume Solutions as Chief Science Officer.[12] Novume was renamed to Rekor Recognition Systems in April 2019.[13]. Matt Hill continues to serve as the President of ClosedRPLA Holdings Inc. [14]
Software[edit]
OpenALPR is an automatic number-plate recognitionlibrary written in C++.[15][16] The software is distributed in both a commercial cloud based version[1] and open source version.[17][3]OpenALPR makes use of OpenCV and Tesseract OCR libraries. It could be run as a command-line utility, standalone library, or background process. The software also integrates with video management systems (VMS) such as Milestone XProtect.[18]As of October 2018, the software had over 7600 stars on GitHub.[19]
References[edit]
External links[edit]
Retrieved from 'https://en.wikipedia.org/w/index.php?title=OpenALPR&oldid=917876801'
OpenALPR is an open source Automatic License Plate Recognition library written in C++ with bindings in C#, Java, Node.js, Go, and Python. The library analyzes images and video streams to identify license plates. The output is the text representation of any license plate characters.
Check out a live online demo here: http://www.openalpr.com/demo-image.html
User Guide
OpenALPR includes a command line utility. Simply typing 'alpr [image file path]' is enough to get started recognizing license plate images.
For example, the following output is created by analyzing this image:
Detailed command line usage:
Binaries
Pre-compiled Windows binaries can be downloaded on the releases page
Install OpenALPR on Ubuntu 16.04 with the following commands:
Documentation
Detailed documentation is available at doc.openalpr.com
Integrating the Library
OpenALPR is written in C++ and has bindings in C#, Python, Node.js, Go, and Java. Please see this guide for examples showing how to run OpenALPR in your application: http://doc.openalpr.com/bindings.html
Compiling
OpenALPR compiles and runs on Linux, Mac OSX and Windows.
OpenALPR requires the following additional libraries:
After cloning this GitHub repository, you should download and extract Tesseract and OpenCV source code into their own directories. Compile both libraries.
Please follow these detailed compilation guides for your respective operating system:
If all went well, there should be an executable named alpr along with libopenalpr-static.a and libopenalpr.so that can be linked into your project.
Humanitarian Visa Letter SampleA Letter of Invitation is probably the documents that very first-time-job seekers have troubles focusing on how to receive, why is it essential, and the best places to send it. Humanitarian visa requirements mexico.
![]() DockerQuestionsAnpr License Plate Recognition Open Source
Please post questions or comments to the Google group list: https://groups.google.com/forum/#!forum/openalpr
Contributions
Improvements to the OpenALPR library are always welcome. Please review the OpenALPR design description and get started.
Code contributions are not the only way to help out. Do you have a large library of license plate images? If so, please upload your data to the anonymous FTP located at upload.openalpr.com. Do you have time to 'tag' plate images in an input image or help in other ways? Please let everyone know by posting a note in the forum.
License![]()
Affero GPLv3http://www.gnu.org/licenses/agpl-3.0.html
License Plate Reader Software
Commercial-friendly licensing available. Contact: [email protected]
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |