A reversible data hiding method for H.264 with Shamir's (t, n)-threshold secret sharing

摘要

This paper proposes a new robust reversible data hiding scheme for H.264. The embedded data is first distributed into n sub-secrets with matrix equation by using Shamir's (t, n)-threshold secret sharing to improve the robustness of the embedded data. Then we choose the block with prediction mode and embed the sub-secrets into the coefficients of the 4 x 4 discrete cosine transform (DCT) block of the selected frames which meet our conditions to avert the distortion drift. The experimental results show that this new robust reversible data hiding algorithm can get more robustness, effectively avert intraframe distortion drift and get good visual quality. (C) 2015 Elsevier B.V. All rights reserved.