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Reversible data hiding is a newly developed research field in digital rights management (DRM) applications. It is a branch in watermarking researches, with the characteristics of reversibility at the decoder. Secret information can first be embedded into original image, with algorithms designed by researchers, at the encoder. Next, image containing secret data is delivered to the decoder. After reception...
Reversible data hiding has been a newly developed branch in data hiding researches. With the definition, when the message is hidden into the original image by some means, the image containing the hidden message is transmitted to the decoder. After decoding, both the original image and the hidden message should both be recovered perfectly. In this paper, we make use of the easily implemented scheme...
Digital watermarking has been a practical and interesting research topic in the last decade. Recently, a newly developed branch called reversible data hiding has emerged. It has attracted more and more attention in both researches and applications. With the definition of reversible data hiding, secret message can be hidden by schemes offered by algorithm designers. On the other hand, at the data extraction...
Data hiding has been an interesting research topic since the early 1990's. Among the hiding schemes, reversible data hiding has attracted more and more attention in both researches and applications. With reversible data hiding, at the data extraction stage, both the original content and the hidden message should be perfectly extracted, hence, how to design such schemes seem an interesting task. It...
Digital watermarking is an effective means for copyright protection or covert communication in the research field of information security. By using watermarking, the watermark bits are hidden into the multimedia content with the designed algorithm. And the watermarked contents, or the watermarked image in this paper, look almost identical to its original counterpart, while it still retains the capability...
As the hardware technology advances, the conventional software development approaches would not effective to conduct an efficient algorithm for run-time environments. The problem comes from the over-simplified hardware abstraction model in software development. The mismatch between the hardware model and the real hardware design should be compensated in designing an efficient algorithm. In this study,...
Digital watermarking has been a popular topic in both researches and applications in the last decade. Based on previous experiences in literature, designing one good watermarking algorithm is desired, and how to assess how good the algorithm is should be based on the preset requirements. Here we use one optimization technique named bacterial foraging and we employ the concept in fuzzy theory to design...
In this paper, we introduce a novel image watermarking scheme using singular value decomposition (SVD) and micro-genetic algorithm (micro-GA). In an SVD-based watermarking scheme, the singular values of the cover image are modified by multiple scaling factors to embed the watermark image. The proper values of scaling factors are optimized and obtained efficiently by means of the micro-GA. Experimental...
Application for robust watermarking is one of the major branches in digital rights management (DRM) systems and related researches. Based on existing metrics to evaluate the applicability of robust watermarking, it is generally agreed that three metrics, including the quality of watermarked contents, the survivability of extracted watermark after intentional or unintentional attacks, and the number...
In this paper, we present the intelligent multimedia data hiding techniques and their possible applications. An introduction on intelligent multimedia data hiding is described which covers backgrounds, recent advances, methodologies, and implementations. The histogram-based reversible data hiding technique is then presented with simulation results and also illustrated by using actual implementations.
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