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Tutorials

OpenCV Saliency Detection

July 16, 2018

Today’s tutorial is on saliency detection, the process of applying image processing and computer vision algorithms to automatically locate the most “salient” regions of an image. In essence, saliency is what “stands out” in a photo or scene, enabling your…

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OpenCV Tutorials
Tutorials

Ubuntu 18.04: How to install OpenCV

May 28, 2018

In this blog post you will learn how to install OpenCV on Ubuntu 18.04. In the past, I’ve authored a handful of installation guides for Ubuntu: Ubuntu 16.04: How to install OpenCV with Python 2.7 and Python 3.5+ Install OpenCV…

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Deep Learning
Object Detection
Tutorials

A gentle guide to deep learning object detection

May 14, 2018

Today’s blog post is inspired by PyImageSearch reader Ezekiel, who emailed me last week and asked: Hey Adrian, I went through your previous blog post on deep learning object detection along with the followup tutorial for real-time deep learning object…

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Deep Learning
Face Applications
OpenCV Tutorials
Tutorials

Face detection with OpenCV and deep learning

February 26, 2018

Last updated on July 4, 2021. Today I’m going to share a little known secret with you regarding the OpenCV library: You can perform fast, accurate face detection with OpenCV using a pre-trained deep learning face detector model shipped with…

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Deep Learning
OpenCV Tutorials
Tutorials

Deep learning: How OpenCV’s blobFromImage works

November 6, 2017

Today’s blog post is inspired by a number of PyImageSearch readers who have commented on previous deep learning tutorials wanting to understand what exactly OpenCV’s blobFromImage function is doing under the hood. You see, to obtain (correct) predictions from deep…

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Deep Learning
Object Detection
OpenCV Tutorials
Raspberry Pi

Raspberry Pi: Deep learning object detection with OpenCV

October 16, 2017

A few weeks ago I demonstrated how to perform real-time object detection using deep learning and OpenCV on a standard laptop/desktop. After the post was published I received a number of emails from PyImageSearch readers who were curious if the…

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Deep Learning
OpenCV Tutorials
Raspberry Pi

Optimizing OpenCV on the Raspberry Pi

October 9, 2017

This tutorial is meant for advanced Raspberry Pi users who are looking to milk every last bit of performance out of their Pi for computer vision and image processing using OpenCV. I’ll be assuming: You have worked through my previous…

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Deep Learning
Object Detection
OpenCV Tutorials
Tutorials

Real-time object detection with deep learning and OpenCV

September 18, 2017

Today’s blog post was inspired by PyImageSearch reader, Emmanuel. Emmanuel emailed me after last week’s tutorial on object detection with deep learning + OpenCV and asked: Hi Adrian, I really enjoyed last week’s blog post on object detection with deep…

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Deep Learning
Object Detection
OpenCV Tutorials
Tutorials

Object detection with deep learning and OpenCV

September 11, 2017

Last updated on July 7, 2021. A couple weeks ago we learned how to classify images using deep learning and OpenCV 3.3’s deep neural network (dnn ) module. While this original blog post demonstrated how we can categorize an image…

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You can learn Computer Vision, Deep Learning, and OpenCV.

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