Adrian Rosebrock

In this tutorial, you will create an automatic Sudoku puzzle solver using OpenCV, Deep Learning, and Optical Character Recognition (OCR). My wife is a huge Sudoku nerd. Every time we travel, whether it be a 45-minute flight from Philadelphia to…

In this tutorial, you will learn how to OCR non-English languages using the Tesseract OCR engine. If you refer to my previous Optical Character Recognition (OCR) tutorials on the PyImageSearch blog, you’ll note that all of the OCR text is…

In this tutorial, you will learn how to use OpenCV and GrabCut to perform foreground segmentation and extraction. Prior to deep learning and instance/semantic segmentation networks such as Mask R-CNN, U-Net, etc., GrabCut was the method to accurately segment the…

In this post, I interview Brandon Gilles, a longtime PyImageSearch reader, and creator of the OpenCV AI Kit (OAK), which is revolutionizing how we are performing embedded computer vision and deep learning. To celebrate the 20th anniversary of the OpenCV…

In this tutorial, you will learn how to build an R-CNN object detector using Keras, TensorFlow, and Deep Learning. Today’s tutorial is the final part in our 4-part series on deep learning and object detection: Part 1: Turning any CNN…

In this tutorial, you will learn how to utilize region proposals for object detection using OpenCV, Keras, and TensorFlow. Today’s tutorial is part 3 in our 4-part series on deep learning and object detection: Part 1: Turning any deep learning…

Today, you will learn how to use OpenCV Selective Search for object detection. Today’s tutorial is Part 2 in our 4-part series on deep learning and object detection: Part 1: Turning any deep learning image classifier into an object detector…

In this tutorial, you will learn how to take any pre-trained deep learning image classifier and turn it into an object detector using Keras, TensorFlow, and OpenCV. Today, we’re starting a four-part series on deep learning and object detection: Part…

In this tutorial, you will learn how to use OpenCV and the Fast Fourier Transform (FFT) to perform blur detection in images and real-time video streams. Today’s tutorial is an extension of my previous blog post on Blur Detection with…