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Loss less data hiding can extract the embedded secret data and restore the cover media to its original status. Wang et al. in 2010 proposed a loss less data hiding method to embed secret message on VQ indices but their scheme has the encoded bit stream over-expanded. This paper improves their embedding approach by employing the index clusters with localization to enhance the similarity of adjacent...
Most of the proposed methods of reversible data hiding based on difference expansion require location maps to recover cover images. Although the location map can be compressed by a lossless compression algorithm, this lowers embedding capacity and increases computational cost during the procedures of embedding and extracting. The study presents an adaptive reversible data scheme based on the prediction...
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