Screen Capture to Sound – by Satoru Higa

Some time ago Zach Lieberman posted code on the oF forums which allows you to show the pixels directly below the openFrameworks app window in a texture. This little app Satoru Higa (4nchor5 la6/rhizomatiks) uses the same method to create a music sequencer. Each time app is ran, the transparent window uses the desktop as the source for sound. The colour and the position of the colours below decides the pitch, tone and tempo. As you drag the window around the desktop or add additional ones you can further create compositions.

At http://www.creativeapplications.net/sound/capture-to-sound-by-satoru-higa/

Generative Photography

Generative Photography is an exploration within the fields of photography and generative art. Digital drawings are sequentially projected on a screen in a dark room and photographed using long exposure times. As in generative art, this photography technique uses an algorithm that is polluted with a certain randomness. The randomness comes from rendering imperfections and the asynchrony between the frame rate of the video signal and the refresh rate of the projector.
Glitches are unique, almost impossible to reproduce, and usually imperceptible to the naked eye. This technique gives shape to these digital glitches and captures their unpredictable beauty.

http://www.generativephotography.com/collections.html
http://blog.ishback.com/?p=793
http://blog.ishback.com/?p=730