The effects of different image pre-processing methods for document image binarization are explored. They are compared on five different binarization methods on images with bleed through and stains as well as on images with uniform background speckle. The binarization method is significant in the binarization accuracy, but the pre-processing also plays a significant role. The Total Variation method of pre-processing shows the best performance over a variety of pre-processing methods.
Copyright 2010 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: 10.1117/12.840606
Barney Smith, Elisa; Likforman-Sulem, Laurence; and Darbon, Jérôme. (2010). "Effect of Pre-Processing on Binarization". Proceedings of SPIE, 7534. http://dx.doi.org/10.1117/12.840606