Category: Other

# 008 How to detect faces, eyes and smiles using Haar Cascade Classifiers with OpenCV in Python

10.06.2020

Highlights: If you have any type of camera that does face detection it is probably using Haar feature-based cascade classifier for object detection. In this post we are going to learn what are these Haar cascade classifiers and how to use them to detect faces, eyes and smiles. Tutorial Overview: Understanding Haar cascade classifiers How to detect faces, eyes and smiles with Haar cascade classifiers? 1. Understanding Haar Cascade Classifiers Two decades ago, face detection…
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#006 Morphological transformations with OpenCV in Python

10.06.2020

Highlight: In this OpenCV with Python post we are going to talk about morphological transformations. Fundamentally, there are two basic morphological transformations and they are called dilation and erosion. They are present in image processing in different applications. They are used for the removal of noise or for finding the bumps or holes in images. In addition, these operations can also be used to calculate gradients of images. Moreover, once we learn two basic morphological…
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#007 Color quantization using K-means clustering

10.06.2020

Highlight: This post can come as a very interesting and surprising one. You will see how we can apply a machine learning algorithm on the pixel intensity color with a so-called K-means clustering algorithm. In this way, we would be able to create a compressed version of our image that will have much fewer colors. The picture will be preserved in a lower color resolution, whereas the number of pixels will remain the same. This…
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06.06.2020

#005 Image Arithmetic and Logical operations in OpenCV with Python

08.05.2020

Highlight: Hello and welcome to the sixth part of our OpenCV with Python post series. In this post we will cover some basic image arithmetic. You will learn how to perform some elementary arithmetic operations on images like addition and subtraction. In addition we will talk about logical bitwise operations (AND, OR, XOR, NOT). Also, we will see how we can implement these operations in some practical tasks in Python. For example, we will explain…
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