Joey van der Bie

Slitscanning is a technique where video or images are created by creating an image slit(line) by slit(line). The position and the direction of the slitscan vary, but usually the slit moves horizontal or vertical over the screen. (more info at wikipedia)

Headtrackslitscan build with openFrameworks

To investigate new possibilities into slitscanning, Vincent Vijn and me created an application with openCV in openFrameworks. The application is able to track your head and play a movie delayed by using horizontal and vertical slits. The starting position of the slitscan is coupled to your head position. This gives you control over how a movie is played.

The headtracking is done by using the openFrameworks implementation of OpenCV together with some code of our own. For the horizontal and vertical slitscan we used example code, and extended this with the headtracking and the combined vertical/horizontal slitscan. We used movies from YouTube to test our application with. We found that for each type of slitscan technique different movies are more appropriate to use. The movie most fit for our application was the prisoners dancing Micheal Jackson. Finally we want to credit Theo Watson, Jesus Gollonet and Diego Diaz for their example code and help.

Because we want to encourage people to do cool things with openFrameworks we decided to publish our source, which can be found here: http://code.google.com/p/mediatechnology/source/browse/branches/Headtracking%20and%20Slitscanning/src/HeadtrackingandSlitscanning_src.zip
For the source to work you need to install openFrameworks and openCV, plus the ofxopenCV library.

We also have a compiled version for windows here: http://mediatechnology.googlecode.com/svn/branches/Headtracking%20and%20Slitscanning/bin/HeadtrackingandSlitscanning.zip
Before trying read the readme to know how to add a video.

And for people who like to wait for the movie: