IMPORTANCE OF POST PROCESSING FOR IMPROVED BINARIZATION OF TEXT DOCUMENTS

Harjinder Singh Dhanjal, Ramandeep Kaur

Abstract: Post processing uses mathematical morphologies to improve the quality of Binary image of a Document. It is observed that when a document is written using a ball point pen or when there is a problem in toner of printer then in scanned copy of such documents there are some minimal stroke gaps which are not easily visible to human eye. But a machine can easily recognise these gaps. These gaps lower the quality of binary image of a document. Post processing very important for improve the accuracy of binarization of degraded documents. In this paper a mathematical technique is discussed to improve the quality of binary image.

Keywords: Post processing, Binarization, Degraded Documents

DOI: https://doi.org/10.15623/ijret.2013.0204041