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2001
IEEE

Edge-preserving prefiltering for document image binarization

12 years 1 months ago
Edge-preserving prefiltering for document image binarization
We propose a novel coplanar filter, which exploits the coplanarity of gray-level distribution of neighboring pixels, to pre-filter the document images. Experiments show that the proposed filter exhibits the following desired properties for document image binarization: (1) impulsive noise removal, (2) piecewise smoothing, and (3) sharp edge preservation.
Liying Fan, Chew Lim Tan, Lixin Fan
Added 25 Oct 2009
Updated 27 Oct 2009
Type Conference
Year 2001
Where ICIP
Authors Liying Fan, Chew Lim Tan, Lixin Fan
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