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LearnOpenCV

Learn OpenCV, PyTorch, Keras, Tensorflow with code, & tutorials

For agents: Tutorial blog teaching OpenCV, PyTorch, Keras and TensorFlow computer vision and deep learning with code examples in Python and C++.

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# LearnOpenCV

Learn OpenCV, PyTorch, Keras, Tensorflow with code, & tutorials

## Sitemaps

- [XML Sitemap](https://learnopencv.com/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [Blogs](https://learnopencv.com/blogs/)
- [The Ultimate Guide to Vector DB and RAG Pipeline](https://learnopencv.com/vector-db-and-rag-pipeline-for-document-rag/) - Processing long documents with VLMs poses a huge challenge. Document RAG pipeline - Vector DB and RAG address this by enabling semantic retrieval.
- [Video Generation: Evolution from VDM to Veo2 and SORA](https://learnopencv.com/video-generation-models/) - A diffusion-based approach for high-quality, physics-consistent video generation, evolving from VDM to Veo 2 and SORA with open-source models like Hunyuan Video
- [MiniCPM-o 4.5: A 9B Model That Can See, Hear, and Speak at the Same Time](https://learnopencv.com/minicpm-o-4-5-a-9b-model-that-can-see-hear-and-speak-at-the-same-time/) - MiniCPM-o 4.5 is a 9B open-source model that can see, hear, and speak simultaneously. We test its full-duplex Omni-Flow streaming on real-world videos.
- [Video Stabilization Using Point Feature Matching in OpenCV](https://learnopencv.com/video-stabilization-using-point-feature-matching-in-opencv/) - In this post we will discuss how to implement Video Stabilization using Point Feature Matching in OpenCV using Python and C++.
- [Understanding Lens Distortion](https://learnopencv.com/understanding-lens-distortion/) - Updated July 31, 2026: This is a conservative correction of the original article. Its correct narrative, worked examples, and media are retained; only identified mistakes, obsolete compatibility details, and missing validation guidance are corrected. In a previous post, we went over the geometry of image formation and learned how a point in 3D gets projected
- [Super Resolution in OpenCV](https://learnopencv.com/super-resolution-in-opencv/) - Super resolution is the process of upscaling or improving the details of the image. This blog is a quick comparison of algorithms on Super Resolution in OpenCV.
- [Snake Game with OpenCV Python](https://learnopencv.com/snake-game-with-opencv-python/) - In this post, we share a tutorial for creating the snake game using OpenCV GUI.
- [Shape Matching using Hu Moments (C++/Python)](https://learnopencv.com/shape-matching-using-hu-moments-c-python/) - How to use Hu Moments for Shape Matching. The theory is explained and example OpenCV code is shared in C++ and Python.
- [Rotation Matrix To Euler Angles](https://learnopencv.com/rotation-matrix-to-euler-angles/) - The post contains C++ and Python code for converting a rotation matrix to Euler angles and vice-versa. It is based on Matlab's rotm2euler.
- [Read, Write and Display a video using OpenCV](https://learnopencv.com/read-write-and-display-a-video-using-opencv-cpp-python/) - A tutorial on how to
…

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