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Authors: Alfredo Restrepo Palacios ; Carlos Rodríguez and Camilo Vejarano

Affiliation: Universidad de los Andes, Colombia

Keyword(s): Colour image processing, angular data, hue, median filter, range filter, von Mises distribution, mathematical morphology.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Enhancement and Restoration ; Image Filtering ; Image Formation and Preprocessing ; Mathematical Morphology

Abstract: Novel tools for colour image processing are presented. Unlike many magnitudes dealt with in engineering, the hue variable of a colour image is circular and requires a special treatment. Special techniques have been advanced in statistics for the analysis of data from angular variables; likewise in image processing for the processing of the hue variable. We give a definition of the median and of the range of angular data and apply their running versions on images to smooth them and to detect hue edges. We also give definitions of hue morphology; one based on the topological concept of lifting and on grey level morphology; another definition is wholly given in a circular context.

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Paper citation in several formats:
Restrepo Palacios, A.; Rodríguez, C. and Vejarano, C. (2007). CIRCULAR PROCESSING OF THE HUE VARIABLE - A Particular Trait of Colour Image Processing. In Proceedings of the Second International Conference on Computer Vision Theory and Applications (VISIGRAPP 2007) - Volume 1: VISAPP; ISBN 978-972-8865-73-3; ISSN 2184-4321, SciTePress, pages 69-76. DOI: 10.5220/0002061600690076

@conference{visapp07,
author={Alfredo {Restrepo Palacios}. and Carlos Rodríguez. and Camilo Vejarano.},
title={CIRCULAR PROCESSING OF THE HUE VARIABLE - A Particular Trait of Colour Image Processing},
booktitle={Proceedings of the Second International Conference on Computer Vision Theory and Applications (VISIGRAPP 2007) - Volume 1: VISAPP},
year={2007},
pages={69-76},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002061600690076},
isbn={978-972-8865-73-3},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the Second International Conference on Computer Vision Theory and Applications (VISIGRAPP 2007) - Volume 1: VISAPP
TI - CIRCULAR PROCESSING OF THE HUE VARIABLE - A Particular Trait of Colour Image Processing
SN - 978-972-8865-73-3
IS - 2184-4321
AU - Restrepo Palacios, A.
AU - Rodríguez, C.
AU - Vejarano, C.
PY - 2007
SP - 69
EP - 76
DO - 10.5220/0002061600690076
PB - SciTePress

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