Statistically analyzing RGB histograms to remove highlighting in aged paper monochromatic documents

Authors:
Ricardo da Silva Barboza;Rafael Dueire Lins;Diego de A. Barros;Edson da F. de Lira
Affiliations:
Universidade Federal de Pernambuco, Recife, PE, Brazil;Universidade Federal de Pernambuco, Recife, PE, Brazil;Universidade do Estado do Amazonas, Manaus, AM, Brazil;Centro Universitário do Norte, Manaus, AM, Brazil
Venue:
GREC'11 Proceedings of the 9th international conference on Graphics Recognition: new trends and challenges
Year:
2011

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Abstract

Text highlighting is often used to emphasize parts of a document for some reason. As highlighting is a personal choice of the reader, it can be seen as physically "damaging" the original document. A recent paper shows how to remove felt-pen highlighting in monochromatic documents with a white paper background. This paper generalizes that result to filter out highlighting in monochromatic documents with non-white background due to paper natural aging.