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Image Processing
OpenCV Tutorials
Tutorials

OpenCV Load Image (cv2.imread)

January 20, 2021

In this tutorial, you will learn how to use OpenCV and the cv2.imread function to: Load an input image from disk Determine the image’s width, height, and number of channels Display the loaded image to our screen Write the image…

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OpenCV Tutorials
Tutorials

OpenCV Getting and Setting Pixels

January 20, 2021

In this tutorial, you will learn how to get and set pixel values using OpenCV and Python. You will also learn: What pixels are How the image coordinate system works in OpenCV How to access/get individual pixel values in an…

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OpenCV Tutorials
Tutorials

OpenCV CV2 Resize Image ( cv2.resize )

January 20, 2021

In this tutorial, you will learn how to resize an image using OpenCV and the cv2.resize function. Scaling, or simply resizing, is the process of increasing or decreasing the size of an image in terms of width and height. A…

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OpenCV Tutorials
Tutorials

OpenCV Bitwise AND, OR, XOR, and NOT

January 19, 2021

In this tutorial, you will learn how to apply bitwise AND, OR, XOR, and NOT with OpenCV. In our previous tutorial on Cropping with OpenCV, you learned how to crop and extract a Region of Interest (ROI) from an image.…

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OpenCV Tutorials
Tutorials

Image Masking with OpenCV

January 19, 2021

In this tutorial, you will learn how to mask images using OpenCV. My previous guide discussed bitwise operations, a very common set of techniques used heavily in image processing. And as I hinted previously, we can use both bitwise operations…

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OpenCV Tutorials
Tutorials

Image Arithmetic OpenCV

January 19, 2021

In this tutorial, you will learn how to perform image arithmetic (addition and subtraction) with OpenCV. Remember way, way back when you studied how to add and subtract numbers in grade school? Well, it turns out, performing arithmetic with images…

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OpenCV Tutorials
Tutorials

Crop Image with OpenCV

January 19, 2021

In this tutorial, you will learn how to crop images using OpenCV. As the name suggests, cropping is the act of selecting and extracting the Region of Interest (or simply, ROI) and is the part of the image in which…

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Getting Started
Tutorials

OpenCV Tutorial: A Guide to Learn OpenCV

July 19, 2018

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…

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Rants
Resources

A guide to asking questions on the PyImageSearch blog

March 6, 2017

Over the past three years running PyImageSearch.com I have received and answered tens of thousands of questions from readers just like yourself who are interested in studying computer vision, OpenCV, and deep learning. Looking back on this time, I can…

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

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