Ghost patch is a Max/MSP patch I used for installations in various clubs in Berlin and around Italy. The patch is taking the video source from a webcam and processing it real-time thru delay and color correction effects.
It has unlimited possibilities of settings and different results.
The aim of this patch is to show the audience a ghost of themselves. Only the ones stopping and taking the time to explore the installation will be able to appear in the projection. The others are just leaving a wake behind them, followed by themselves.