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Improvement of binarization performance using local otsu thresholding
International Journal of Electrical and Computer Engineering (IJECE)
<p><span>Ancient document usually contains multiple noises such as uneven-background, show-through, water-spilling, spots, and blur text. The noise will affect the binarization process. Binarization is an extremely important process in image processing, especially for character recognition. This paper presents an improvement to Nina binarization technique. Improvements were achieved by reducing processing steps and replacing median filtering by Wiener filtering. First, the document backgrounddoi:10.11591/ijece.v9i1.pp264-272 fatcat:2rq44pmtrvha7kfnmziqj3depq