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A High Capacity Reversible Data Hiding Scheme Based on Multi-Level Integer DWT and Histogram Modification

机译:基于多层整数DWT和直方图修正的大容量可逆数据隐藏方案

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摘要

A reversible data hiding scheme based on integer DWT and histogram modification is proposed. In the scheme, the cover media is firstly transformed by Integer DWT (Discrete Wavelet Transformation); then information is embedded through the modification of histograms of the middle and high frequency sub-bands of the DWT coefficients. In order to increase the embedding capacity, a multi-level scheme is proposed, which achieved both high embedding capacity and reversibility. Extensive experimental results have shown that the proposed scheme achieves both higherembedding capacity and lower distortion than spatial domain histogram modification based schemes; and it achieved better performance than integer DCT (Discrete Cosine Transformation) based histogram modification scheme.
机译:提出了一种基于整数DWT和直方图修正的可逆数据隐藏方案。在该方案中,覆盖媒体首先通过整数DWT(离散小波变换)进行转换;然后通过修改DWT系数的中高频子带的直方图来嵌入信息。为了提高嵌入能力,提出了一种多层次的方案,该方案实现了高嵌入能力和可逆性。大量的实验结果表明,与基于空间域直方图修改的方案相比,该方案具有更高的嵌入能力和更低的失真。与基于整数DCT(离散余弦变换)的直方图修改方案相比,它具有更好的性能。

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