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Lossless data hiding is a newly developed topic in information security researches. With the term of 'lossless', secret information is embedded into original image with methods developed by researchers at the encoder, and marked image is produced. Correspondingly, at the decoder, users are capable of perfectly separating the embedded secret and original image from the marked image, based on the reasonable...
Reversible data hiding is one of the popular topics in watermarking researches, and it belongs to the branch of digital rights management (DRM) applications. Similar to conventional watermarking techniques, for reversible data hiding, at the encoder, secret information can be embedded into original images, and the marked image can be obtained. Different from conventional watermarking, due to the term...
In this paper, we propose a new method for reversible data hiding by employing the hierarchical relationships of original images. There are many parameters for accessing the performances of reversible data hiding algorithms, including the output image quality, the hiding capacity, and the overhead for decoding. Considering the ease of implementation and the little overhead needed for decoding, we...
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