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Authors: Lalit Kumar ; Abhay Bansal ; Dinesh Ganotra and Neeraj Jain

Affiliation: Newgen Software Technologies Limited, India

ISBN: 978-989-8111-69-2

ISSN: 2184-4321

Keyword(s): Binarization, Thinning, Skeleton, Local Coupling Point, LCP, ICR, OCR, Offline Signature Verification.

Abstract: Image thinning, while preserving geometrical properties of the image, remains one of the most challenging areas in Image Processing. In this paper, we introduce an image thinning approach that takes as input gray scale images and produces binary thinned images as output. Our approach uses bi-directional iterative thinning process to get single-pixel-thinned image (primary skeleton), while preserving the geometric properties of the image. The gray scale image is binarized using dyamic threshold, and further processed to remove noise. Black pixels are classified as contour pixels (pixels exposed to the background) and body pixels (black pixels other than the contour pixels). Thinning process involves scanning contour pixels from two opposite directions simultaneously, while preserving Local Coupling Points (LCP) and removing the rest of pixels.

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Paper citation in several formats:
Kumar L.; Bansal A.; Ganotra D.; Jain N. and (2009). AN IMPROVED APPROACH FOR THINNING BY PRESERVING LOCAL COUPLING POINTS.In Proceedings of the Fourth International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2009) ISBN 978-989-8111-69-2, pages 90-95. DOI: 10.5220/0002156700900095

@conference{visapp09,
author={Lalit Kumar and Abhay Bansal and Dinesh Ganotra and Neeraj Jain},
title={AN IMPROVED APPROACH FOR THINNING BY PRESERVING LOCAL COUPLING POINTS},
booktitle={Proceedings of the Fourth International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2009)},
year={2009},
pages={90-95},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002156700900095},
isbn={978-989-8111-69-2},
}

TY - CONF

JO - Proceedings of the Fourth International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2009)
TI - AN IMPROVED APPROACH FOR THINNING BY PRESERVING LOCAL COUPLING POINTS
SN - 978-989-8111-69-2
AU - Kumar, L.
AU - Bansal, A.
AU - Ganotra, D.
AU - Jain, N.
PY - 2009
SP - 90
EP - 95
DO - 10.5220/0002156700900095

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