New PDF release: Transactions on data hiding and multimedia security VI

By Patchara Sutthiwan, Yun Q. Shi, Hong Zhao, Tian-Tsong Ng, Wei Su (auth.), Yun Q. Shi, Sabu Emmanuel, Mohan S. Kankanhalli, Shih-Fu Chang, Regunathan Radhakrishnan, Fulong Ma, Li Zhao (eds.)

ISBN-10: 3642245552

ISBN-13: 9783642245558

Since the mid Nineties, info hiding has been proposed as an allowing expertise for securing multimedia communique, and is now utilized in a number of functions together with broadcast tracking, motion picture fingerprinting, steganography, video indexing and retrieval, and snapshot authentication. info hiding and cryptographic thoughts are usually mixed to counterpoint one another, hence triggering the improvement of a brand new study box of multimedia safety. along with, comparable disciplines, steganalysis and knowledge forensics, are more and more attracting researchers and changing into one other new examine box of multimedia safety. This magazine, LNCS Transactions on information Hiding and Multimedia safety, goals to be a discussion board for all researchers in those rising fields, publishing either unique and archival learn effects. This factor is composed in general of a unique part on content material defense and forensics together with 4 papers. the extra paper offers with histogram-based snapshot hashing for looking content-preserving copies.

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Circuits Syst. Video Technol. 15(12), 1638–1649 4. : Secret and public key image watermarking schemes for image authentication and ownership verification. IEEE Trans. Image Process. 10(10), 1593–1601 (2001) 5. : A Guide tour of video watermarking. Signal Processing: Image Communicatin 18, 263–282 (2003) 6. : A Dual-Tree Complex Transform With Improved Orthogonality and Symmetry Properties. In: Proc. of Int. Conf. Imag. , vol. 2, pp. 375–378 (September 2000) 7. : Complex Wavelets For Shift Invariant Analysis and Filtering of Signals.

Fq,s =Fd,s (len(Fd,s )-Nw +1:len(Fd,s)), where len(x) returns the length of the 1-D array x and Nw is the length of the watermark. Mark the block as embeddable if Vm ≥min(Fq,s ). Otherwise, mark it as unembeddable, where min() gives the minimum of the elements in the set. The watermark is embedded by swapping the two median coefficients if needed, namely “coefficients swapping”. Adjustment is applied to the two swapped coefficients using the absolute difference between the two median coefficients and that of the two extreme coefficients in the block, as illustrated in Fig.

19) r Thus, based on the central limit theorem, the probability density function of the sum approaches a normal distribution with statistics, T S(qw ) = N (μq + μw0 , σq2 /r) under H0 , N (μq + μw1 , σq2 /r) under H1 . (20) Robust Watermarking of Compressed JPEG Images in Encrypted Domain 45 Now, the mean μq is unknown, therefore a sub-optimal detection is considered by taking μq = N qwj (i), then putting γ = μq we get, Sj = 1 0 if T S(qw ) > γ , if T S(qw ) < γ . (21) where Sj is the j th watermark bit.

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Transactions on data hiding and multimedia security VI by Patchara Sutthiwan, Yun Q. Shi, Hong Zhao, Tian-Tsong Ng, Wei Su (auth.), Yun Q. Shi, Sabu Emmanuel, Mohan S. Kankanhalli, Shih-Fu Chang, Regunathan Radhakrishnan, Fulong Ma, Li Zhao (eds.)


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