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1. Finding the difference between laser speckle patterns, to detect key presses etc.

   Python 7

2. A large format XY scanning based hyperspectral camera making use of 200um fibre and a spectrometer

   Python 2

3. Using visual cryptography to create physical keyrings

   Python 17 1

4. Simple demo illustrating remanence of data in RAM (see Cold boot attack) using a Raspberry Pi. Loads many images of the Mona Lisa into RAM and recovers after powering off/on again.

   C 105 4

5. Makes B&W monitor, colour - using acetate or duraclear bayer filter placed over it and then displaying a custom image or video on the monitor

   Python 67 3

6. Optical magnetic stripe decoding using magnetic developer and image processing to extract a credit card number

   Python 40 6