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Article Details

Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

Recognition of Odia Character in an Image by Dividing the Image into Four Quadrants

Author 1: Aradhana Kar
Author 2: Sateesh Kumar Pradhan

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Digital Object Identifier (DOI) : 10.14569/IJACSA.2022.0130815

Article Published in International Journal of Advanced Computer Science and Applications(IJACSA), Volume 13 Issue 8, 2022.

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Abstract: This paper deals with optical character recognition of Odia characters written in a particular font family ‘AkrutiOriAshok-99’ with different font sizes 18, 20, 22, 24, 26, 28, 36, 48 and 72 in Bold style. The font ‘AkrutiOriAshok-99’ is a font from the typing software ‘Akruti’. The basic idea behind the approach followed in this paper is the character decomposition into four quadrants and then extracting features from each quadrant. The image processing techniques like converting the image to gray, resizing of image and converting gray image to binary are used in this approach. The system explained in this paper has two major parts: DictionaryBuilding and FindingMatch. For DictionaryBuilding, dictionary of images which are created either by scanning a document or a document converted to image, both written in same font family in different sizes. The features are extracted from each image in any font size in the ‘Dictionary’ using Preprocessing, FindPath, GettingFeaturesLeft or GettingFeaturesRight, VisitSubQuad, RemainingSubQuad, WriteToExcel and CommonFeature modules. The part FindingMatch is responsible for finding a correct match in the dictionary for the input image. For this, FeatureExtraction and Recognition modules have been used. Longest Common Subsequence (LCS) has been used for finding the common feature in DictionaryBuilding as well as finding the correct match. A total of 1800 characters, 200 characters of each font size have been tested and 98.1% of correctness has been achieved.

Keywords: Odia characters; image processing; character decomposition; machine learning; optical character recognition

Aradhana Kar and Sateesh Kumar Pradhan, “Recognition of Odia Character in an Image by Dividing the Image into Four Quadrants” International Journal of Advanced Computer Science and Applications(IJACSA), 13(8), 2022. http://dx.doi.org/10.14569/IJACSA.2022.0130815

@article{Kar2022,
title = {Recognition of Odia Character in an Image by Dividing the Image into Four Quadrants},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2022.0130815},
url = {http://dx.doi.org/10.14569/IJACSA.2022.0130815},
year = {2022},
publisher = {The Science and Information Organization},
volume = {13},
number = {8},
author = {Aradhana Kar and Sateesh Kumar Pradhan}
}


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