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18th International Conference on Pattern Recognition (ICPR'06) Volume 3
Adaptive Binarization of Historical Document Images
Hong Kong
August 20-August 24
ISBN: 0-7695-2521-0
Ergina Kavallieratou, University of the Aegean, 83200 Samos, Greece
Stamatatos Stathis, University of the Aegean, 83200 Samos, Greece
In this paper, we present a binarization technique specifically designed for historical document images. Existing methods for this problem focus on either finding a good global threshold or adapting the threshold for each area so that to remove smear, strains, uneven illumination etc. We propose a hybrid approach that first applies a global thresholding method and, then, identifies the image areas that are more likely to still contain noise. Each of these areas is re-processed separately to achieve better quality of binarization. We evaluate the proposed approach for different kinds of degradation problems. The results show that our method can handle hard cases while documents already in good condition are not affected drastically.
Citation:
Ergina Kavallieratou, Stamatatos Stathis, "Adaptive Binarization of Historical Document Images," icpr, vol. 3, pp.742-745, 18th International Conference on Pattern Recognition (ICPR'06) Volume 3, 2006
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