Digital Image Steganography

Digital Image Steganography like any other science can be both beneficial and detrimental to oneself.  The whole idea behind steganography is that people can communicate with one another in a secret manner.  Some common examples include using images, audio, and video files to portray their secretive information.  Along with digital image steganography there are physical steganography, network steganography, and printed steganography.  The main objectives of doing this is to resist various image processing methods and its capacity of hidden data.  This process is similar yet different from watermarking and cryptography.

Currently, there are no methods for stopping this from occurring in a reasonable period of time.  To send a message, an image should be embedded in the text.  In addition, you need a key to aid in encryption and it helps you decide where the information and image should be hidden.  Another image or text can be used as a disguise which can be used as a key.  In order to receive a message, you need to have the source image as well as a key to help decode the information.  The decoded information will show up in a new tab if it can read it properly.  There are two common forms of internet-friendly formats which are the algorithm for GIF images and and the JPEG algorithm.  JPEG is more experimental because that is what the designers of JPEG wanted to avoid, hiding information.

http://www.sciencedirect.com/science/article/pii/S0165168409003648
https://ccrma.stanford.edu/~eberdahl/Projects/Paranoia/