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Authors: Lu Hao ; Jie Feng and Bingfeng Zhou

Affiliation: Peking University, Cambodia

Keyword(s): Color Removal, Gradient Domain, Image Processing, Color Difference.

Related Ontology Subjects/Areas/Topics: Computational Photography ; Computer Vision, Visualization and Computer Graphics ; Rendering

Abstract: Color-to-grayscale conversion for digital color images is widely used in many applications. In this paper an automatic gradient domain color-to-gray conversion method is described. By enhancing the luminance gradient with a modulated chromatic difference enhancement in CIELAB space, a gradient field is created to construct the resulting grayscale image using a Poisson equation solver. A sign function for the gradient is defined for isoluminance color images to keep correct color ordering. By introducing a structural similarity index measurement (SSIM), the main parameters of the method are automatically optimized in the sense of human vision. Therefore, this method can automatically produce artifact-free and salience-preserving grayscale images that coincide with human perception for the color difference.

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Paper citation in several formats:
Hao, L.; Feng, J. and Zhou, B. (2015). Automatic Color-to-Gray Conversion for Digital Images in Gradient Domain. In Proceedings of the 10th International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2015) - GRAPP; ISBN 978-989-758-087-1; ISSN 2184-4321, SciTePress, pages 231-238. DOI: 10.5220/0005262102310238

@conference{grapp15,
author={Lu Hao. and Jie Feng. and Bingfeng Zhou.},
title={Automatic Color-to-Gray Conversion for Digital Images in Gradient Domain},
booktitle={Proceedings of the 10th International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2015) - GRAPP},
year={2015},
pages={231-238},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005262102310238},
isbn={978-989-758-087-1},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the 10th International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2015) - GRAPP
TI - Automatic Color-to-Gray Conversion for Digital Images in Gradient Domain
SN - 978-989-758-087-1
IS - 2184-4321
AU - Hao, L.
AU - Feng, J.
AU - Zhou, B.
PY - 2015
SP - 231
EP - 238
DO - 10.5220/0005262102310238
PB - SciTePress

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