Download Multimedia Data Hiding by Min Wu PDF

April 4, 2017 | Storage Retrieval | By admin | 0 Comments

By Min Wu

The electronic info revolution has led to profound adjustments in our society and our existence. New units and strong software program have made it attainable for shoppers world wide to create, control, proportion, and luxuriate in the multimedia details. net and instant networks provide ubiquitous channels to bring and to interchange multimedia info for such pur­ poses as distant collaboration, far-off studying, and leisure. With these types of advances in multimedia coding and communique applied sciences over the last decade, the key hurdle for permitting a lot broader entry of multimedia resources and deployment of multimedia providers now not lies with bandwidth-related matters, yet with the way to ensure that content material is used for its meant goal via its meant recipients. The middle factor then be­ comes the advance of safe administration of content material utilization and supply throughout verbal exchange networks. information hiding and electronic watermarking are promising new applied sciences for multimedia info safeguard and rights administration. Secondary info could be embedded imperceptibly in electronic multimedia signs for various purposes, together with possession safety, authentication, entry con­ trol, and annotation. information hiding is usually used to ship aspect details in multimedia verbal exchange for supplying extra functionalities or for boosting functionality. The extraction of the embedded information mayor won't want wisdom of the unique host media info. as well as im­ perceptibility, robustness opposed to reasonable processing resembling compression can also be an immense consideration.

Show description

Read Online or Download Multimedia Data Hiding PDF

Similar storage & retrieval books

Networked Digital Technologies, Part I: Second International Conference, NDT 2010, Prague, Czech Republic (Communications in Computer and Information Science)

This booklet constitutes the complaints of the second one overseas convention on Networked electronic applied sciences, held in Prague, Czech Republic, in July 2010.

The Cyberspace Handbook (Media Practice)

The our on-line world instruction manual is a accomplished advisor to all features of latest media, info applied sciences and the net. It supplies an outline of the commercial, political, social and cultural contexts of our on-line world, and offers sensible suggestion on utilizing new applied sciences for examine, conversation and ebook.

Multimedia Database Retrieval: Technology and Applications

This publication explores multimedia functions that emerged from laptop imaginative and prescient and computer studying applied sciences. those state of the art purposes comprise MPEG-7, interactive multimedia retrieval, multimodal fusion, annotation, and database re-ranking. The application-oriented procedure maximizes reader realizing of this advanced box.

Optimizing and Troubleshooting Hyper-V Storage

This scenario-focused identify offers concise technical information and insights for troubleshooting and optimizing garage with Hyper-V. Written by means of skilled virtualization pros, this little booklet packs loads of price right into a few pages, providing a lean learn with plenty of real-world insights and top practices for Hyper-V garage optimization.

Additional resources for Multimedia Data Hiding

Sample text

Possibilities will result in a histogram which deviates appreciably from the mean, and that higher moments will not contribute much to this investigation. 002%. 086. We have also performed 1000 random permutations on the block DCT of the image of Fig. 1, and compute the mean and variance of each bin of the histogram {mrIN}. As we can see from Fig. 6(b), the dash-dot line is the histogram of {mr IN} before shuffling, showing that 20% of the segments have no embeddable coefficients, the solid line is a plot of Eq.

31) where the term E[ ~ log e] vanishes because Y has zero mean. With E(y2) = 0"2 and some more rearrangement, we arrive at = , C AWGN DICO A2 2AY log 2 + -2 0" loge - E[log(e-;;2 + 1)]. 32) Therefore, the channel capacity in unit of bit per channel use under AWGN noise is CAWGN,DICO = A2 ( 2AY 1 + U2log2 e - E[ log2 e-;;2 + 1)] . 33) 40 3. Basic Embedding Mechanisms For AWUN noise between -M/2 and +M/2 (noise variance a 2 = M2/12), the differential entropy of noise is h(Z) = j M/2 -M/2 1 MlogM dz = logM.

Before shuff 0 simulation mean simulation std analytic mean ..... analytic std • 2 ! 5 r 1\ ! ~ ..... -. " , _0'" _ .... ,. \ ~-'\ "0, ............. _ .... 15 25 10 20 embeddable coefl. # per segment (alex. 6. Histogram of embeddable coefficients per 8 x 8 block for the luminance components of Fig. 1 before shuffling (dash-dot line) and after shuffling (all others): (solid line) - mean of simulation; (dot line) - std of simulation; (circles) - mean from analytic study; (crosses) - std from analytic study.

Download PDF sample

Rated 4.74 of 5 – based on 12 votes