Learn OpenCV

OpenCV examples and tutorials ( C++ / Python )

Read, Write and Display a video using OpenCV ( C++/ Python )

By 6 Comments

In this post, we will learn how to read, write and display videos in OpenCV. Before we do that, allow me a digression into a bit of history of video capture. On June 15, 1898, in Palo Alto, California, a remarkable experiment was conducted to determine whether a galloping horse ever had all … [Read more...]

Automatic Red Eye Remover using OpenCV (C++ / Python)

By

In this tutorial, we will learn how to remove red eyes from a photo completely automatically. Just thinking about this problem of red-eye removal brings back memories from my childhood. I grew up in small towns in India where not every family in my middle-class neighborhood had a camera. My … [Read more...]

Head Pose Estimation using OpenCV and Dlib

By

In this tutorial we will learn how to estimate the pose of a human head in a photo using OpenCV and Dlib. In many applications, we need to know how the head is tilted with respect to a camera. In a virtual reality application, for example, one can use the pose of the head to render the right view … [Read more...]

Average Face : OpenCV ( C++ / Python ) Tutorial

By

In this tutorial we will learn how to create an average face using OpenCV ( C++ / Python ). Most people would agree that the woman in Figure 1 is pretty. Can you guess her ethnicity ? Why is her skin flawless ? Well, she is not real. She is not completely virtual either. Her face is the average … [Read more...]

Homography Examples using OpenCV ( Python / C ++ )

By

The Tower of Babel, according to a mythical tale in the Bible, was humans' first engineering disaster. The project had all the great qualities of having a clear mission, lots of man power, no time constraint and adequate technology ( bricks and mortar ). Yet it failed spectacularly because God … [Read more...]