A NOVEL IMAGE SECRET SHARING SCHEME WITH MEANINGFUL SHARES

In this paper a novel (t, n) threshold image secret sharing scheme is proposed. Based on the idea that there is close connection between secret sharing and coding theory, coding method on GF(2(m)) is applied in our scheme instead of the classical Lagrange's interpolation method in order to deal with the fidelity loss problem in the recovery. All the generated share images are meaningful and the size of each share image is the same as the secret image. The analysis proves our scheme is perfect and ideal and also has high security. The experiment results demonstrate that all the shares have high quality and the secret image can be recovered exactly.