Reversible Data Hiding by Reduplicated Exploiting Modification Direction Method

Zhang et al. in 2006 proposed a data hiding technique called Exploiting Modification Direction (EMD) with good capacity and high image quality. Related follow-up improvements are proposed by other scholars to raise the change between pixel values thus increasing the capacity and without reversibility. This paper utilizes the high image quality feature of EMD to develop a reversible data hiding method while maintaining high capacity, acceptable image quality, and reversibility.