It is safe to say that everyone that has had a play with Processing or openFrameworks has at some point thought about creating a slit scanning app for the iPhone. It is one of those techniques that gets designers thinking about pixels and time together and is even included in Processing as one of the examples. Surprisingly, there has been only a few slit screening apps and most not so well executed. Now, please say hello to DScan by Dofl Y.H. Yun.