Special issue on the analysis of historical documents
International Journal on Document Analysis and Recognition
Binarization of Badly Illuminated Document Images through Shading Estimation and Compensation
ICDAR '07 Proceedings of the Ninth International Conference on Document Analysis and Recognition - Volume 01
A multi-scale framework for adaptive binarization of degraded document images
Pattern Recognition
DAS '10 Proceedings of the 9th IAPR International Workshop on Document Analysis Systems
Historical document image restoration using multispectral imaging system
Pattern Recognition
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Extraction of the original text from historical document images is very important in the preservation of cultural heritage. In recent decades, many image processing techniques have been developed to separate the main text from the document image background, most of which are based on grayscale treatment. In this paper, we propose a new text extraction method designed for multi-spectral document images (MSDI), based on a combination of two classifiers, one statistical and the other geometric. Our main contribution is the novel technique involving feature extraction and classifier weighting in the context of MSDI. The results, which are compared to two binarization methods, are promising.