A New Deblurring Algorithm for Textual Document Images

Daniel M. Oliveira, Rafael Lins, Gabriel P. Silva, Jian Fan, Marcelo Thielo

DOI: 10.14209/sbrt.2010.93

Evento: VII International Telecommunications Symposium (ITS2010)

Keywords: Deblurring blur camera documents scanner documents

Abstract

Documents digitalized by portable cameras or flatbed scanners may exhibit some blurred areas. Most deblurring algorithms are hard to implement and slow. Often they try to solve the problem for any kind of image. In the case of text document images, the transition between characters and the paper background has a high contrast. With that in mind, a new algorithm is proposed for deblurring of textual documents; there is no need to estimate the PSF and the filter can be directed applied to the image.

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