DEWARPING AND DESKEWING OF A DOCUMENT USING AFFINE TRANSFORMATION

Honey Kansal, Sudip Sanyal, Deepali Gupta

Abstract

An approach based on affine transformations is applied to solve the problem of dewarping of scanned text images. The technique is script independent and does not make any assumptions about the nature of the text image or the nature of warping. The attendant problems of deskewing and deshadowing are also dealt with using a vertical projection technique and filtering technique respectively. Experiments were performed on scanned text images with varying font sizes, shapes and from various scripts with varying degrees of warp, skew and shadow. The proposed method was found to give good results on all the text images, thus demonstrating the effect of the approach.

References

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Paper Citation


in Harvard Style

Kansal H., Sanyal S. and Gupta D. (2009). DEWARPING AND DESKEWING OF A DOCUMENT USING AFFINE TRANSFORMATION . 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 73-78. DOI: 10.5220/0001798100730078


in Bibtex Style

@conference{visapp09,
author={Honey Kansal and Sudip Sanyal and Deepali Gupta},
title={DEWARPING AND DESKEWING OF A DOCUMENT USING AFFINE TRANSFORMATION},
booktitle={Proceedings of the Fourth International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2009)},
year={2009},
pages={73-78},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001798100730078},
isbn={978-989-8111-69-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Fourth International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2009)
TI - DEWARPING AND DESKEWING OF A DOCUMENT USING AFFINE TRANSFORMATION
SN - 978-989-8111-69-2
AU - Kansal H.
AU - Sanyal S.
AU - Gupta D.
PY - 2009
SP - 73
EP - 78
DO - 10.5220/0001798100730078