Restoration of error-diffused images using projection onto convex sets

Ünal, G. B. and Çetin, Ahmet Enis (2001) Restoration of error-diffused images using projection onto convex sets. IEEE Transactions on Image Processing, 10 (12). pp. 1836-1841. ISSN 1057-7149 (Print) 1941-0042 (Online)

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In this paper, a novel inverse halftoning method is proposed to restore a continuous tone image from a given half-tone image. A set theoretic formulation is used where three sets are defined using the prior information about the problem. A new space-domain projection is introduced assuming the halftoning is performed using error diffusion, and the error diffusion litter kernel is known. The space-domain, frequency-domain, and space-scale domain projections are used alternately to obtain a feasible solution for the inverse halftoning problem which does not have a unique solution.
Item Type: Article
Additional Information: WoS - Open Access (Green Published)
Uncontrolled Keywords: error diffusion; inverse error diffusion; inverse halftoning; projection onto convex sets (POCS); restoration
Divisions: Faculty of Engineering and Natural Sciences
Depositing User: IC-Cataloging
Date Deposited: 09 Jun 2020 16:03
Last Modified: 26 Apr 2022 10:15

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