OpenCV Tutorials

The following links describe a set of basic OpenCV tutorials. All the source code mentioned here is provided as part of the OpenCV regular releases, so check before you start copy & pasting the code. The list of tutorials below is automatically generated from reST files located in our GIT repository.

As always, we would be happy to hear your comments and receive your contributions on any tutorial.

• Introduction to OpenCV

  You will learn how to setup OpenCV on your computer!

• The Core Functionality (core module)

  Here you will learn the about the basic building blocks of the library. A must read and know for understanding how to manipulate the images on a pixel level.

• Image Processing (imgproc module)

  In this section you will learn about the image processing (manipulation) functions inside OpenCV.

• High Level GUI and Media (highgui module)

  This section contains valuable tutorials about how to use the built-in graphical user interface of the library.

• Image Input and Output (imgcodecs module)

  These tutorials show how to read and write images using imgcodecs module.

• Video Input and Output (videoio module)

  These tutorials show how to read and write videos using videio module.

• Camera calibration and 3D reconstruction (calib3d module)

  Although we got most of our images in a 2D format they do come from a 3D world. Here you will learn how to find out from the 2D images information about the 3D world.

• 2D Features framework (feature2d module)

  Learn about how to use the feature points detectors, descriptors and matching framework found inside OpenCV.

• Video analysis (video module)

  Look here in order to find algorithms usable on your video streams like: motion extraction, feature tracking and foreground extractions.

• Object Detection (objdetect module)

  Ever wondered how your digital camera detects peoples and faces? Look here to find out!

• Machine Learning (ml module)

  Use the powerful machine learning classes for statistical classification, regression and clustering of data.

• Computational photography (photo module)

  Use OpenCV for advanced photo processing.

• Images stitching (stitching module)

  Learn how to create beautiful photo panoramas and more with OpenCV stitching pipeline.

• GPU-Accelerated Computer Vision (cuda module)

  Squeeze out every little computation power from your system by using the power of your video card to run the OpenCV algorithms.

• OpenCV iOS

  Run OpenCV and your vision apps on an iDevice

• OpenCV Viz

  These tutorials show how to use Viz module effectively.