Unsupervised Learning for Color Constancy

Nikola Banić, Sven Lončarić

2018

Abstract

Most digital camera pipelines use color constancy methods to reduce the influence of illumination and camera sensor on the colors of scene objects. The highest accuracy of color correction is obtained with learning-based color constancy methods, but they require a significant amount of calibrated training images with known ground-truth illumination. Such calibration is time consuming, preferably done for each sensor individually, and therefore a major bottleneck in acquiring high color constancy accuracy. Statistics-based methods do not require calibrated training images, but they are less accurate. In this paper an unsupervised learning-based method is proposed that learns its parameter values after approximating the unknown ground-truth illumination of the training images, thus avoiding calibration. In terms of accuracy the proposed method outperforms all statistics-based and many state-of-the-art learning-based methods. The results are presented and discussed.

Paper Citation

in Harvard Style

Banić N. and Lončarić S. (2018). Unsupervised Learning for Color Constancy. In Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 4: VISAPP; ISBN 978-989-758-290-5, SciTePress, pages 181-188. DOI: 10.5220/0006621801810188

in Bibtex Style

@conference{visapp18,
author={Nikola Banić and Sven Lončarić},
title={Unsupervised Learning for Color Constancy},
booktitle={Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 4: VISAPP},
year={2018},
pages={181-188},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006621801810188},
isbn={978-989-758-290-5},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 4: VISAPP
TI - Unsupervised Learning for Color Constancy
SN - 978-989-758-290-5
AU - Banić N.
AU - Lončarić S.
PY - 2018
SP - 181
EP - 188
DO - 10.5220/0006621801810188
PB - SciTePress