Conspiracy Themed Lesson Using Matlab

Hi there,

I am a teacher in a mathematics (for teaching) program and we have just learned some functions/codes, on matlab, for digital imaging. We have a final project that involves teaching a lesson using Matlab codes.

We are going to teach a lesson (potentially for our high school students) to other math teachers and we would like to create a conspiracy themed lesson around cryptography. I have looked into digital image encryption/decryption using matlab, but I am not sure if the code will be too complicated. I also looked into watermarking. What would you suggest I do for a conspiracy themed lesson? We want to make it as fun as possible, but we also want to add some element of mystery to it, without going over their heads with the codes and mathematics.

What do you think?

Thanks!

[Cedric]

[Image Analyst]

If this is a SIRDS, I'm not getting it, and I'm pretty good at them. Maybe it's a resolution/aliasing problem.

[Walter Roberson]

It does appear to be a stereogram of a woman, but it is difficult for me to make out.

[Star Strider]

It seems to be rotated 90°, but even with prism correction it’s difficult for me to see. Perhaps it needs red-blue tinted lenses to see it clearly.

[Image Analyst]

Evan after rotating, I can't see anything other than random shapes at different levels.

[Cedric]

The red component may be close to the real part of something..

Answer 1

[Image Analyst]

How about asking them to do a Monte Carlo simulation of the Prisoner's Dilemma? It's only about conspiracy though, not cryptography or steganography or watermarking.

Paradoxes can be fun, such as the attached Monte Carlo Simulation of the Monty Hall Problem.

[Dante]

I was thinking about doing a hill cipher to encrypt a digital image using mod 256 (for gray scale values), instead of mod 26 (mapped to letters). How would you go about in doing this?

[Image Analyst]

Sorry, I'm not sure. Cryptography is not my area of expertise.