针对此不足，提出一种基于多灰度图像真实性认证的直方图对无损数据隐藏新方法。
Therefore, a lossless data hiding scheme of histogram pair was proposed based on multi-gray image authenticity certification.
因此迫切需要一种既能有效地避免破坏原始数据信息，又能通过隐藏信息发挥作用的新方法——无损信息隐藏方法。
Therefore, it is desirable to design a new type of data hiding method-reversible data hiding, which can avoid distorting the original data and exert its benefits.
因此迫切需要一种既能有效地避免破坏原始数据信息，又能通过隐藏信息发挥作用的新方法——无损信息隐藏方法。
Therefore, it is desirable to design a new type of data hiding method-reversible data hiding, which can avoid distorting the original data and exert its benefits.
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