A reversible image hiding scheme using novel linear prediction coding and histogram shifting
نویسندگان
چکیده
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 using the linear prediction coding and two histograms. In the linear prediction coding, however, the basic pixel is not used. If a value of basic pixel is the largest or the smallest in a block, only one histogram is generated and the hiding capacity is decreased. To solve the problems, this paper proposes the novel linear prediction coding with the inverse S-order and one histogram using two peak points. In experimental results, the hiding capacity of the proposed scheme is superior to Tsai et al.’s scheme.
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