I was reading through my Digital Image Processing book (2nd edition) about something called Fourier transforms. Without explaining the math, suffice it to say that any 2d image can be transformed into a mathematical representation called the Fourier domain. When you do a Fourier transform on a normal image, you get what looks like a cluster of stars. So me being me, I thought, what do you get if you do a Fourier transform on a picture of a cluster of stars? SECRET MESSAGES FROM SPACE!?

If you appreciate this instructible, please visit my blog for more ideas:

GoodCleanCrazy

Resources:

1. Image editing software that is capable of Fourier transformation (I'm sure there's a free astronomy tool out there SOMEWHERE)

2. Photos of objects in space (like nebulae)

**Signing Up**

Message read "Get a life Earthling".

Perform

anotherFFT and you get a Fourier pattern with two R's overlaid, one rotated 180 degrees. That double imaged R rotated is part of the problem of using the same image to represent the real and "imaginary" portion of the FFT image, but it gets you close and is usually interpretable.