## OpenCV: Open Source Computer Vision Library
### Keep OpenCV Free
OpenCV is raising funds to keep the library free for everyone, and we need the support of the entire community to do it. [Donate to OpenCV on IndieGoGo ](http://igg.me/at/opencv5 ) before the campaign ends on December 16 to show your support.
### Resources
* Homepage: < https: // opencv . org >
* Courses: < https: // opencv . org / courses >
* Docs: < https: // docs . opencv . org / 4 . x />
* Q& A forum: < https: // forum . opencv . org >
* previous forum (read only): < http: // answers . opencv . org >
* Issue tracking: < https: // github . com / opencv / opencv / issues >
* Additional OpenCV functionality: < https: // github . com / opencv / opencv_contrib >
### Contributing
Please read the [contribution guidelines ](https://github.com/opencv/opencv/wiki/How_to_contribute ) before starting work on a pull request.
#### Summary of the guidelines:
* One pull request per issue;
* Choose the right base branch;
* Include tests and documentation;
* Clean up "oops" commits before submitting;
* Follow the [coding style guide ](https://github.com/opencv/opencv/wiki/Coding_Style_Guide ).
### Additional Resources
* [Submit your OpenCV-based project ](https://form.jotform.com/233105358823151 ) for inclusion in Community Friday on opencv.org
* [Subscribe to the OpenCV YouTube Channel ](http://youtube.com/@opencvofficial ) featuring OpenCV Live, an hour-long streaming show
* [Follow OpenCV on LinkedIn ](http://linkedin.com/company/opencv/ ) for daily posts showing the state-of-the-art in computer vision & AI
* [Apply to be an OpenCV Volunteer ](https://form.jotform.com/232745316792159 ) to help organize events and online campaigns as well as amplify them
* [Follow OpenCV on Mastodon ](http://mastodon.social/@opencv ) in the Fediverse
* [Follow OpenCV on Twitter ](https://twitter.com/opencvlive )
* [OpenCV.ai ](https://opencv.ai ): Computer Vision and AI development services from the OpenCV team.
