OpenCV
Sometimes technology enhances art. Sometimes it vandalizes it. Colorizing black and white films is an ancient idea dating back to 1902. For decades many movie creators opposed the idea of
In middle school, we learned about various shapes in geometry. It was relatively easy to find the centers of standard shapes like the circle, square, triangle, ellipse, etc. But when
In this post, we will learn how to perform feature-based image alignment using OpenCV. We will share code in both C++ and Python. We will demonstrate the steps by way
If you haven’t been to the Wizarding World of Harry Potter or don’t know what an ‘interactive wand’ is, you are kinda missing out on a really well designed experience
In this post, we will learn how to Read, Write and Display a video using OpenCV. Code in C++ and Python is shared for study and practice. Before we do
In this tutorial, we will introduce a quick way to check your OpenCV build settings. If you have ever compiled or installed OpenCV, you know it can be compiled with
In this tutorial, we will learn Object tracking using OpenCV. A tracking API that was introduced in OpenCV 3.0. We will learn how and when to use the 8 different
In this post, we will learn the details of the Histogram of Oriented Gradients (HOG) feature descriptor. We will learn what is under the hood and how this descriptor is
In this tutorial we will learn how to fill holes in a binary image. Consider the image on the left in Figure 1. Let’s say we want to find a
In OpenCV the class VideoCapture handles reading videos and grabbing frames from connected cameras. There is a lot of information you can find about the video file you are playing
In a previous post I discussed two libraries for facial landmark detection, and had pointed to several interesting applications like Face Morphing, Face Replacement etc. that use facial landmarks. In
One of the elements of good design is the principle of least astonishment ( a.k.a principle of least surprise). A good intuitive design makes the user not think. When you
