A study on binarization for degraded historical document

NCIDCAS | Special Issue | December-2018 | Published Online: 22 December 2018    PDF ( 145 KB )
Author(s)
Nagane Aniket 1; Mali Shankar 2; Gursale Sneha 3; Kshetre Diksha 4

1Assistant Professor, Department of Computer Science, MIT ACSC,Alandi(D),Pune, Maharashtra (India)

2Associate Professor, Department of Computer Science, Dr. Vishwanath Karad MIT World Peace University, Pune (India)

3Student, Department of Computer Science, MIT ACSC,Alandi(D),Pune, Maharashtra (India)

4Student, Department of Computer Science, MIT ACSC,Alandi(D),Pune, Maharashtra (India)

Abstract

Binarization is one of the very initial and important step in image processing. In OCR systems also binarization is necessary as a part of image enhancement. This paper presents study on binarization of degraded historical documents. As our rich heritage and culture can be unveiled and understood from the old and ancient documents, OCR for oldest scripts is a today’s need. Old ancient available documents are mostly in degraded form. This paper presents study on binarization of degraded historical documents and notes the observations as there are many different and approaches followed to achieve better binarization of historical documents. Methods studied and presented in this paper yields good results but for specific type of documents.

Keywords
binarization, degraded document, thresholding, image enhancement
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