The fastest way to learn OpenCV, Object Detection, and Deep Learning.
– Discover the?“hidden” face detector?in OpenCV.
– Develop a super-simple object tracker.
– Use neural networks for?object detection.
Learn how to do all this and more for free in 17?simple to follow, obligation free?email lessons starting today.
“PyImageSearch’s course converted me from a Python beginner to a published computer vision practitioner.” – Dr. Paul Lee
Need help learning Computer Vision, Deep Learning, and OpenCV?Let me guide you.
Whether you’re brand new to the world of computer vision and deep learning or you’re already a seasoned practitioner, you’ll find tutorials for both beginners and experts alike. Here are some of the most popular categories and tutorials on the PyImageSearch blog.
How Do I Get Started?
You’re interested in Computer Vision, Deep Learning, and OpenCV…but you don’t know how to get started. Follow these tutorials to get OpenCV installed on your system, learn the fundamentals of Computer Vision, and graduate to more advanced topics, including Deep Learning, Face Recognition, Object Detection, and more!
Featured articles
pip install OpenCV
In this tutorial, you will learn how to pip install OpenCV on Ubuntu, macOS, and the Raspberry Pi. In previous OpenCV install tutorials I have recommended compiling from source; however, in the past year it has become possible to install…
OpenCV Tutorial: A Guide to Learn OpenCV
Whether you’re interested in learning how to apply facial recognition to video streams, building a complete deep learning pipeline for image classification, or simply want to tinker with your Raspberry Pi and add image recognition to a hobby project, you’ll…
Bubble sheet multiple choice scanner and test grader using OMR, Python, and OpenCV
Over the past few months I’ve gotten quite the number of requests landing in my inbox to build a bubble sheet/Scantron-like test reader using computer vision and image processing techniques. A dataset of filled-in bubble sheets is essential for this…
Deep Learning
Deep Learning algorithms are revolutionizing the Computer Vision field, capable of obtaining unprecedented accuracy in Computer Vision tasks, including Image Classification, Object Detection, Segmentation, and more. Follow these tutorials and you’ll have enough knowledge to start applying Deep Learning to your own projects.
Featured articles
Meet BLIP: The Vision-Language Model Powering Image Captioning
Table of Contents Meet BLIP: The Vision-Language Model Powering Image Captioning What Is Image Captioning and Why Is It Challenging? Why It’s Challenging Why Traditional Vision Tasks Aren’t Enough Configuring Your Development Environment A Brief History of Image Captioning Models…
Training YOLOv12 for Detecting Pothole Severity Using a Custom Dataset
Table of Contents Training YOLOv12 for Detecting Pothole Severity Using a Custom Dataset Introduction Dataset and Task Overview About the Dataset What Are We Detecting? Defining Pothole Severity Can the Pothole Severity Logic Be Improved? Configuring Your Development Environment Training…
Breaking the CNN Mold: YOLOv12 Brings Attention to Real-Time Object Detection
Table of Contents Breaking the CNN Mold: YOLOv12 Brings Attention to Real-Time Object Detection The YOLO Evolution (Quick Recap) YOLOv8: Introducing the C2f Module and OBB Support YOLOv9: Programmable Gradient Information and GELAN YOLOv10: NMS-Free Training and Dual Assignments YOLOv11:…
Face Applications
Computer Vision algorithms can be used to perform face recognition, enhance security, aid law enforcement, detect tired, drowsy drivers behind the wheel, or build a virtual makeover system. Follow these tutorials learn the basics of facial applications using Computer Vision.
Featured articles
OpenCV Eigenfaces for Face Recognition
In this tutorial, you will learn how to implement face recognition using the Eigenfaces algorithm, OpenCV, and scikit-learn. Our previous tutorial introduced the concept of face recognition — detecting the presence of a face in an image/video and then subsequently…
Face Recognition with Local Binary Patterns (LBPs) and OpenCV
In this tutorial, you will learn how to perform face recognition using Local Binary Patterns (LBPs), OpenCV, and the cv2.face.LBPHFaceRecognizer_create function. In our previous tutorial, we discussed the fundamentals of face recognition, including: The difference between face detection and face…
What is face recognition?
In this tutorial, you will learn about face recognition, including: How face recognition works How face recognition is different from face detection A history of face recognition algorithms State-of-the-art algorithms used for face recognition today Next week we will start…
Image Processing
Machine Learning
Deep Learning
Raspberry Pi
OpenCV Tutorials
Object Detection
Interviews
Optical Character Recognition (OCR)
Keras and TensorFlow
Embedded/IoT and Computer Vision
Face Applications
Object Tracking
Medical Computer VisionStudent Success Stories
What People Are Saying
Adrian has helped me with my Computer Vision journey more than anyone ever has. If I need to learn anything his courses or the blog are the first thing I refer to. And if still in doubt just comment on the blog and he is very likely to respond to each and every question. Thanks Adrian.
Android Developer and Computer Vision Practitioner
Adrian’s deep learning book book is a great, in-depth dive into practical deep learning for computer vision. I found it to be an approachable and enjoyable read: explanations are clear and highly detailed. You’ll find many practical tips and recommendations that are rarely included in other books or in university courses. I highly recommend it, both to practitioners and beginners.
Creator of Keras and AI researcher at Google
I consider PyImageSearch the best collection of tutorials for beginners in computer vision. Adrian’s explanations are easy to get started with and at the same time cover enough depth to quickly feel at home in the official documentation. This combination is a rare treasure in today’s overload of carelessly written tutorials. I’ve recommended PyImageSearch already numerous times.
Student at ETH Zürich
Adrian’s Practical Python and OpenCV is the perfect first step if you are interested in computer vision but don’t know where to start…You’ll be glued to your workstation as you try out just one more example.
Creator of MachineLearningMastery.com
I highly recommend grabbing a copy of Deep Learning for Computer Vision with Python. It goes into a lot of detail and has tons of detailed examples. It’s the only book I’ve seen so far that covers both how things work and how to actually use them in the real world to solve difficult problems. Check it out!
Author of Machine Learning is Fun! blog series
Practical Python and OpenCV is a non-intimidating introduction to basic image processing tasks in Python. While reading the book, it feels as if Adrian is right next to you, helping you understand the many code examples without getting lost in mathematical details.
Principal Engineer and Deep Learning Practitioner at MagicLeap
Phenomenal. The concepts on deep learning are so well explained that I will be recommending this book [Deep Learning for Computer Vision with Python] to anybody not just involved in computer vision but AI in general.
PhD in CV and ML, author at Zbigatron
PyImageSearch is the go to place for computer vision. The blog and books show excellent use cases from simple to more complex, real world scenarios. The step guides are all working out of the box. I use them as a perfect starting point and enhance them in my own solutions.
Chief Technology Officer at Makerspace.hu
The PyImageSearch Gurus course is one of the best education programs I have ever attended. No matter whether you are a beginner or advanced computer vision developer, you’ll definitely learn something new and valuable inside the course. I highly recommend PyImageSearch Gurus to anyone interested in learning computer vision.
Data Scientist and Big Data Architect
My Books & Courses
My books and courses work. Students of mine have gone on to land high profile jobs at R&D companies, land $100,000+ in grant funding, publish novel papers in reputable journals, win Kaggle competitions, and completely change their career from developer to Computer Vision/Deep Learning practitioner.
Pick up a copy of my books/courses today and join them in CV/DL mastery.
PyImageSearch University
Inside PyImageSearch University, you get access to centralised code repos of high-quality source code for all 500+ tutorials on the PyImageSearch blog, Jupyter Notebooks in pre-configured Google Colab instances, video tutorials, and new courses released every month!
Deep Learning for Computer Vision with Python
An in-depth dive into the world of computer vision and deep learning. Start by learning the basics of DL, move on to training models on your own custom datasets, and advance to implementing state-of-the-art models.
Build An AI Image Generator In Python: Learn Diffusion From The Ground Up
Master the art of creating AI-powered image generators using advanced diffusion models. This course provides a step-by-step guide, starting with foundational math and concepts, leading to practical applications like image inpainting, outpainting, and ControlNet. Gain hands-on experience implementing projects using libraries such as Hugging Face Diffusers and Stable Diffusion, preparing you for cutting-edge advancements in AI and computer vision.
GPT Mastery Bundle
Avail of this exclusive offer to master both the fundamentals and advanced strategies of working with Transformer models. The GPT Mastery Bundle combines our three top-tier courses, offered at an impressive discount. This bundle is perfect for students looking to fully immerse themselves in the world of AI and GPT technologies.
Object Detection With YOLO Models
Explore the cutting-edge advancements in computer vision with the YOLO family of object detection models. This course takes you through the evolution of YOLO, from its inception to the latest innovations, offering hands-on guidance, practical examples, and real-world applications. Whether you’re a beginner or an experienced practitioner, this course equips you with the tools and knowledge to implement YOLO models effectively in various domains, including autonomous driving, healthcare, and security.
Raspberry Pi for Computer Vision
Apply Computer Vision, Deep Learning, and OpenCV to resource constrained/embedded devices, including the Raspberry Pi, Movidius NCS, Google Coral, and NVIDIA Jetson Nano.
About Me
You’re stuck learning Computer Vision and Deep Learning. So was I.
Hi there, I’m Adrian Rosebrock, PhD.
I started the PyImageSearch community to help fellowdevelopers, students, and researchers:
- Get started with Computer Vision and OpenCV
(without a decade of mathematics and theory). - Learn how to successfully apply Computer Vision, Deep Learning, and OpenCV to their own projects and research.
- Avoid the same mistakes and pitfalls I made when studying Computer Vision and Deep Learning.
Recent Blog Posts and Tutorials
Every Monday for the past five years I published a brand new tutorial on Computer Vision, Deep Learning, and OpenCV. Here are my most recent tutorials and guides.
Post Training Qwen3 for Math Reasoning Using GRPO
Table of Contents Post Training Qwen3 for Math Reasoning Using GRPO Group Relative Policy Optimization (GRPO) Challenges with Proximal Policy Optimization (PPO)? Computational Overhead and Memory Requirements Value Function Instability and Representation Collapse Hyperparameter Sensitivity and Training Instability Bias in…
Preparing the BLIP Backend for Deployment with Redis Caching and FastAPI
Table of Contents Preparing the BLIP Backend for Deployment with Redis Caching and FastAPI Introduction What We’re Building in This Lesson Why Redis Caching Matters for Inference What Is Caching? What Is Redis? Configuring Your Development Environment Running a Local…
Meet BLIP: The Vision-Language Model Powering Image Captioning
Table of Contents Meet BLIP: The Vision-Language Model Powering Image Captioning What Is Image Captioning and Why Is It Challenging? Why It’s Challenging Why Traditional Vision Tasks Aren’t Enough Configuring Your Development Environment A Brief History of Image Captioning Models…
Synthetic Data Generation Using the VLM-as-Judge Method
Table of Contents Synthetic Data Generation Using the VLM-as-Judge Method Configuring Your Development Environment Set Up and Imports Downloading Images Locally Using Qwen as VLM-as-Judge Converting the JSON File to the Hugging Face Dataset Format Inspecting the Dataset Pushing the…
Synthetic Data Generation Using the BLIP and PaliGemma Models
Table of Contents Synthetic Data Generation Using the BLIP and PaliGemma Models Why VLM-as-Judge and Synthetic VQA Configuring Your Development Environment Set Up and Imports Download Images Locally Inference with the Salesforce BLIP Model Convert JSON File to the Hugging…
Fine Tuning SmolVLM for Human Alignment Using Direct Preference Optimization
Table of Contents Fine Tuning SmolVLM for Human Alignment Using Direct Preference Optimization What Is Preference Optimization? Types of Techniques Reinforcement Learning from Human Feedback (RLHF) Reinforcement Learning from AI Feedback (RLAIF) Direct Preference Optimization (DPO) Identity Preference Optimization (IPO)…
