Articles in Category Tutorial
8 February 2010
Mirroring Video with openFrameworks - Part II
I have been busy for the last few weeks but I finally got some time to write the next article on openFrameworks. In this article I’m going to explain the algorithms to change an RGB webcam image to grayscale and how to mirror that grayscale image.
19 January 2010
Mirroring Video with openFrameworks
When you create an installation that uses a webcam to analyse the behavior of people, you often need to mirror the video to use it. In this article I’m going to explain how to do this in openFrameworks.
The first thing you need to do is to declare some variables in testApp.h. You’ll need an ofVideoGrabber to capture video from the webcam, an ofTexture to render the mirrored video to the screen, a char array to store temporary pixel values and two integers for the width and height of the video to capture. Add this code to testApp.h, right after the standard methods.
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12 January 2010
Introduction to openFrameworks
I’ve been playing around with openFrameworks for a while and I decided to write some articles about it. Coding in openFrameworks feels a lot like working with Processing so it might be easy to convert some of my old Processing sketches to openFrameworks. In this first article I’m going to compare some of the functions of openFrameworks to those of Processing to show you how easy it is to move from one platform to the other.
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