When is a picture not a picture? What is really in a Random Tandem?

Year: 2007 Authors: Simon Bexfield

Core claim

By combining two random-dot sheets in exact alignment, a hidden image can be made visible while each sheet alone reveals no information.

Topics

random-dot images, hidden pictures, parallax viewing, encryption, glass structures

Domains

randomness, Fourier Transformation, Fixed Point Theorem, visual art, architectural installation, glass design, magical illusion

Methods

overlay alignment, transparency printing, panel composition, parallax spacing

Media

white card, transparency, glass pane, double glazing

Source status

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