Data Hiding In Encrypted Images Using Reversible Technique Based On Interpolation Method

Abstract

Reversible data hiding in encrypted images (RDH-EI)based on progressive recovery. Three parties are involved in the framework, including the content owner, the data hider, and the recipient. The content owner encrypts the original image using a stream cipher algorithm and uploads cipher text to the server. The data hider on the server divides the encrypted image into three channels and respectively embeds different amount of additional bits into each one to generate a marked encrypted image. On the recipient’s side, additional message can be extracted from the marked encrypted image, and the original image can be recovered without any errors. While most of the traditional methods use one criterion to recover the whole image, we propose to do recovery by a progressive recovery mechanism. Rate distortion of the proposed method out performs state-of-the-art RDH-EI methods.