Effect of pre-processing on binarization
Elisa H. Barney Smith, Laurence Likforman-Sulem, Jérôme Darbon · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2009
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.