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In 2009, Tsai et al. proposed reversible image hiding scheme using linear prediction coding and histogram shifting. Tsai et al.`s scheme improved the hiding capacity of Ni et al.`s scheme by using the prediction coding and two histograms. However, Tsai et al.`s scheme has problems. In the prediction coding, the basic pixel is not used from embedding procedure. Many additional communication data are generated because two peak and zero point pairs are generated by each block. To solve the problems, this paper proposes a novel reversible data hiding scheme based on modulo operation and histogram shifting. In experimental results, the hiding capacity was increased by 28% than Tsai et al.`s scheme. However, the additional communication data was decreased by 71%.

A novel Reversible Data Hiding Scheme based on Modulo Operation and Histogram Shifting