Restoration of error-diffused images using projection onto convex sets
Author
Unal G.B.
Çetin, A.E.
Date
2001Source Title
IEEE Transactions on Image Processing
Print ISSN
10577149
Volume
10
Issue
12
Pages
1836 - 1841
Language
English
Type
ArticleItem Usage Stats
121
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102
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Abstract
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 filter 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.
Keywords
Error diffusionInverse error diffusion
Inverse halftoning
Projection onto convex sets (POCS)
Restoration
Error diffusion
Inverse halftoning method
Algorithms
Error analysis
FIR filters
Frequency domain analysis
Iterative methods
Set theory
Image reconstruction
Permalink
http://hdl.handle.net/11693/24767Published Version (Please cite this version)
http://dx.doi.org/10.1109/83.974568Collections
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