Automatic Dumas Message Decoding

We ran an interesting workshop at the space today. We had a crack at decoding the Dumas message.

If you haven't seen it before, this was a

Here's a single image version of the message. The original had borders around each page, but this was simpler to work with:


For obvious reasons we didn't announce the workshop ahead of time. Apart from getting the images, I was very careful not to google any information that would prejudice out investigation.

Software Overview:

In order to make our workshop run

After looking at the image, it was clear that