Báo cáo hóa học: " Review Article Overview on Selective Encryption of Image and Video: Challenges and Perspectives doc

... way of securing the content, named, partial encryption or selective encryption, soft encryption, perceptual encryption, by applying encryption to a subset of a bitstream. The main goal of selective ... principal challenges and perspectives for selective encryption. 1.1. Shannon and selective encryption In [2–4], Lookabaugh pointed out the close link between s...

Ngày tải lên: 22/06/2014, 00:20

... quartic functional equation and every solution of the quartic functional equation is said to be a quartic mapping. The study of stability of functional equations is important problem in nonlinear sciences ... differential equations,” International Journal of Nonlinear Sciences and Numerical Simulation, vol. 8, pp. 311–314, 2007. 34 Z. M. Odibat and S. Momani, “Application of...

Ngày tải lên: 21/06/2014, 05:20

... Simsek, and I. N. Cangul, “Remarks on sum of products of h,q-twisted Euler polyno- mials and numbers,” to appear in Journal of Inequalities and Applications. 15 Y. Simsek, “Theorems on twisted ... h,q-Euler-l-function and its applications,” Advanced Studies in Contemporary Mathematics, vol. 15, no. 1, pp. 37–47, 2007. 2 M. Cenkci and M. Can, “Some results on q-an...

Ngày tải lên: 22/06/2014, 06:20

... Theory and Applications 4. Second-Order Contingent Derivative of the Perturbation Maps The purpose of this section is to investigate the quantitative information on the behavior of the perturbation ... Foundation of China no. 10871216 and no. 11071267, Natural Science Foundation Project of CQ CSTC and Science and Te chnology Research Project of Chong Qing Municipal Edu...

Ngày tải lên: 21/06/2014, 05:20

... dimension for R component. (d) Spatial- frequency distribution converting into one dimension for B component. Raw image R G1 G2 B Compression image for G1 Compression image for G2 Noncompression image ... distribution converting into one dimension for G1 component. (b) Spatial-frequency distribution converting into one dimension for G2 component. (c) Spatial-frequency distribution con...

Ngày tải lên: 21/06/2014, 07:20

... Corporation Journal of Inequalities and Applications Volume 2009, Article ID 838529, 10 pages doi:10.1155/2009/838529 Research Article The Schur Harmonic Convexity of the Hamy Symmetric Function and ... largest component in x. F is called a Schur concave function on E if −F is a Schur convex function on E . Definition 2.5. Let E ⊆ R n  beasetafunctionF : E → R 1  is called a...

Ngày tải lên: 22/06/2014, 02:20

... “motion JPEG2000,” component of the J. E. Fowler and B. Pesquet-Popescu 25 [126] A. Uhl, Image compression using non-stationary and in- homogeneous multiresolution analyses,” Image and Vision Computing, ... of subbands. The decomposition proce- dure can be repeated recursively on one or more of the sub- bands to yield multiple levels of decomposition of lower and lower...

Ngày tải lên: 22/06/2014, 19:20

... unexpected connection with q-analysis and quantum groups, and thus with noncommutative geometry q-analysis is a sort of q-deformation of the ordinary analysis. Spherical functions on quantum groups ... the q-extension of Euler and Genocchi numbers,” Journal of Mathematical Analysis and Applications, vol. 326, no. 2, pp. 1458–1465, 2007. 4 L C. Jang, “A study on the distr...

Ngày tải lên: 21/06/2014, 05:20

... g,z,w,andr monotone functions in some of their variables. The first case covers the periodic case and the second one separated boundary conditions. In the proofs, a more general definition of lower and ... Carath ´ eodory one, must be extended to the nonlinear boundary conditions. This new truncation on the boundary conditions must satisfy similar properties to the ones of the nonli...

Ngày tải lên: 21/06/2014, 11:20

... capacity depends on the nature of the image itself. In this case, the images with a lot of low frequencies contents and high correlation, like Lena and Fruits, produce more expandable triplets ... images. Test image PSNR of marked image (dB) Test image PSNR of marked image (dB) Lena 43.42 Peppers 43.46 Baboon 44.48 Barbara 43.45 Boat 43.47 Pentagon 43.46 visual quality...

Ngày tải lên: 21/06/2014, 17:20