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Watermarking has been suggested in the literature as the most effective means for copyright protection and authentication. The main focus of this thesis is the establishment of the non-stationary Gaussian watermarking models, to the case where watermarked images are quantized before distribution. The hidden message carries RW bits per image dimension. Our main result is the determination of the region...
With rapidly growing interest in ways to hide information, a large number of schemes have been proposed for watermarks and other information in digital pictures, video, audio and other multimedia objects. In an attempt to overcome this problem, watermarking has been suggested in the literature as the most effective means for copyright protection and authentication. The main focus of this thesis is...
The frequency response spectra of propane in silicalite-1 were measured at equilibrium pressures of 0.5-8.0 Torr and temperatures of 303-363 K and analysed by non-isothermal diffusion, two independent diffusion processes, and single-diffusion models. The first model is physically feasible for the explanation of the bimodal FR behaviour of this system, but the heat effect can be eliminated by reducing...
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