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Recto-verso Registration, Enhancement and Segmentation of Ancient Documents

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5 Author(s)
Bianco, G. ; Dipt. di Meccanica, Univ. della Calabria, Rende, Italy ; Bruno, F. ; Tonazzini, A. ; Salerno, E.
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This paper presents some experiments on different image processing techniques combined and adapted to define a procedure aimed at improving the readability of ancient degraded documents. The focus is on documents affected by the bleed-through effect, which significantly reduces readability. The availability of the recto and verso scans of any single page is assumed. The proposed procedure is composed of three steps: recto-verso registration, image enhancement through statistical decorrelation and, finally, image segmentation. As the registration step can strongly influence the results obtained during the subsequent phases, we carried out a comparison of different registration algorithms, in order to evaluate their overall effectiveness on recto-verso processing.

Published in:

Virtual Systems and Multimedia, 2009. VSMM '09. 15th International Conference on

Date of Conference:

9-12 Sept. 2009