Steganography techniques for hiding information in images

In this section, we review Steganography techniques and stepic as the python module for hiding information in images.

Introduction to Steganography

Steganography (http://en.wikipedia.org/wiki/Steganography) is a specific branch of cryptography that allows us to hide a secret message into public information, that is, into apparently innocuous information.

One of the main techniques for hiding information is use the Least Significant Bit (LSB).

When passing through each pixel of the image, we obtain an RGB triplet composed of whole numbers from (0) to (255), and since each number has its own representation in binary, we convert that triplet into its equivalent in binary...