Shadow buttons
posted Dec 28th 2009 2:00pm by Mike Szczysfiled under: misc hacks
This art installation uses buttons made of light. A projector fills up the walls and ceiling of a room while a webcam monitors the pattern for changes. When the luminosity of a given area changes due to a shadow, a midi event is triggered. The software that controls the system is written in C# and uses the Emgu CV library to handle the image processing. In the video after the break you can see that creating shadows with your hands prompts changes in the image as well as the sound.
This is just nothing new anymore. With a little code, I can plug my laptop into my home tv projector and point the built-in webcam that direction to get the same effect. Not really an ‘installation’.