Image Steganography Using Sudoku
Project Members
Samuel Wagstaff, Vaishnavi Chandrasekaran
Samuel Wagstaff, Vaishnavi Chandrasekaran
Abstract
An image sharing scheme that encodes the secret image without altering the image size or requiring any additional information is proposed. The scheme ensures that the fidelity of the revealed secret data is distortion free and also possesses reversible characteristics providing for the retrieval of the host image as well.
The system uses the concept of Sudoku to conceal the shadow with reversibility. Given a secret image, the system derives shadows from the secret image and produces n shadow images. Given any t out of n shadow images along with the corresponding key values, the involved participants can losslessly reconstruct the secret and the original host image.