Golan Levin is an artist and engineer. He creates interactive works of art, many times using programs exactly similar to processing. In this TED talk he describes some of his work. One of the things that was more interesting that he talked about was an art display where anytime a loop or closed figure was made by the silhouette of people, it formed a shape which then dropped due to gravity.
Here you see some images of the type of interactivity that was created. Another project he did was placing a large eyeball figure on top of a roof and had it react to people walking up to the building, always making a surprised look through its form.
[link to TED talk]
This uses the simple concept of pixelating a photograph when someone stands in front of the camera. The pixelation has different parameters in the computer that project different images. Although this is an interactive art and the computer does it instantly when a person stands in front, I think it would also be easy to do it manually on photoshop.
The project uses video cameras, projection, and fiber optic bristle brushes to create digital paintings on the easel. The painter has to interact with the easel to create the paining.
The has trash collected from streets of NYC. 4 mechanical mirrors are made of various materials and have the same behavior and interaction.Any person standing in front of one of these pieces is instantly reflected on its surface. The mechanical mirrors all have video cameras, motors and computers on board and produce a soothing sound as the viewer interacts with them.
This is a nice idea. I wish they were a little more elaborate on explaining how it is done. However, I am assuming it has the same concept of the other interactive arts where the results of projection are coded based on different parameters such as how hard the gun is triggered.
This is creepy yet very funny. This art projects a spot light on random people and follow them around. All the date is registered in the data. It also has sound beams which talk to the people being targeted. This is an interesting way to play a prank on random people in the hallway.
This is a project that recycles used toys to create artwork installations. One of them includes wiring hundreds of sound mussels to a gate that with collect and play different sound. Others also include using stuffed toys with LED lights. This is crazy form of digital artwork.