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A robust method for inverse halftoning via two-dimensional nonlinear pyramid

✍ Scribed by Yueping Kong; Ping Zeng


Book ID
115367885
Publisher
Optics InfoBase
Year
2007
Tongue
English
Weight
224 KB
Volume
5
Category
Article
ISSN
1671-7694

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A conservative spectral method is proposed to solve several two-dimensional nonlinear wave equations. The conventional fast Fourier transform is used to approximate the spatial derivatives and a three-level difference scheme with a free parameter ΞΈ is to advance the solution in time. Our time discre