• Homepage: http://opencv.org
• Docs: http://docs.opencv.org
• Q&A forum: http://answers.opencv.org
• Issue tracking: http://code.opencv.org

Please read before starting work on a pull request: http://code.opencv.org/projects/opencv/wiki/How_to_contribute

Summary of 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.