Cyberbit
Visual Cryptography and Bit-Plane Complexity Segmentation in Python
... to send the two vessels to your correspondent.
For instance you can post one vessel image on facebook. The other vessel image can be
sent as an attachment of an e-mail. The vessel images can be 8-bit gray-level
images or 24-bit deep true-color images.
Anyone who can correctly spot the two vessels and knows the dimensions of the image
containing the secret message will be able to decrypt the secret message using the
Cyberbit application.