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Authors: Xu Guoliang and Tan Qingping

Affiliation: Computer College, National University of Defense Science and Technolgy, China

ISBN: 978-989-674-027-6

Keyword(s): Image Halftone, Dithering Matrix, Geometry Subdivision, Delaunay Triangulation, PSNR.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Digital Printing Technologies ; Image and Video Analysis

Abstract: Hybrid halftone has great strengths over amplitude and frequency modulated halftone in offset printing. Modern CTP systems employ hybrid dithering algorithm, because dithering algorithm is a very efficient halftone algorithm. The shapes, distribution and density of clustered dots in halftone images depend on hybrid dithering matrix. This research proposes a new method to construct a hybrid dithering matrix with equal clustered dot density, based on a new geometry subdivision derived from Delaunay Triangulation. The matrix helps increase clustered dot density and maintain constraints of the offset printing procedure. This paper also discusses the uniformity of expanded central point set and quality of quadrilaterals of the geometry subdivision by comparing PSNR and quality factor value with that of the previous work.

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Paper citation in several formats:
Guoliang X.; Qingping T. and (2010). CONSTRUCTING THE HYBRID DITHERING MATRIX WITH EQUAL CLUSTERED DOT DENSITY.In Proceedings of the International Conference on Imaging Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: IMAGAPP, (VISIGRAPP 2010) ISBN 978-989-674-027-6, pages 61-67. DOI: 10.5220/0002830400610067

@conference{imagapp10,
author={Xu Guoliang and Tan Qingping},
title={CONSTRUCTING THE HYBRID DITHERING MATRIX WITH EQUAL CLUSTERED DOT DENSITY},
booktitle={Proceedings of the International Conference on Imaging Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: IMAGAPP, (VISIGRAPP 2010)},
year={2010},
pages={61-67},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002830400610067},
isbn={978-989-674-027-6},
}

TY - CONF

JO - Proceedings of the International Conference on Imaging Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: IMAGAPP, (VISIGRAPP 2010)
TI - CONSTRUCTING THE HYBRID DITHERING MATRIX WITH EQUAL CLUSTERED DOT DENSITY
SN - 978-989-674-027-6
AU - Guoliang, X.
AU - Qingping, T.
PY - 2010
SP - 61
EP - 67
DO - 10.5220/0002830400610067

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