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INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH

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IJPR included in UGC-Approved List of Journals - Ref. No. is SL. No. 4812 & J. No. 63703

Published by : Advanced Scientific Research
ISSN
0975-2366
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IJPR 9[3] July - September 2017 Special Issue

July - September 9[3] 2017

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A Comparative Binarization Approach for Degraded Agreement Document Image from Various Pharmacies

Author: B.J. NAIR, K.P. NIHAR, C.K. ADARSH
Abstract: The initial stage of the document image is pre-processing. When we see historical document it will be degraded and it need to be preserved. Here in this paper we are considering the aged historical document of agreement copy and we are performing binarization to the document. Many methods has been proposed for binarization but there no perfect method for each every type of the document. So we propose a novel method by using both local thresholding and global thresholding and check their accuracy of the each method. We use Otsu, Niblack, sauvola, wolf methods and added morphological operation like dilation and erosion which gives extra clarity to the document. The dataset we have collect is from both Kannada and Malayalam. Promising result was seen with the accuracy of 87.03% which is better than other proposed methods for the agreement copy.
Keyword: Binarization, Recognition, Thresholding, Degraded Document
DOI: https://doi.org/10.31838/ijpr/2020.12.02.0124
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