Multi-Class Error-Diffusion with Blue-noise Property

Xiaoliang Xiong, Haoli Fan, Jie Feng, Zhihong Liu, Bingfeng Zhou

Abstract

Existing researches on error-diffusion mainly focus on sampling over a single channel of input signal. But there are cases where multiple channels of signal need to be sampled simultaneously while keeping their blue-noise property for each individual channel as well as their superimposition. To solve this problem, we propose a novel discrete sampling algorithm called Multi-Class Error Diffusion (MCED). The algorithm couples multiple processes of error diffusion to maintain a sampling output with blue-noise distribution. The correlation among the classes are considered and a threshold displacement is introduced into each process of error-diffusion for solving the sampling conflicts. To minimize the destruction to the blue-noise property, an optimization method is used to find a set of optimal key threshold displacements. Experiments demonstrate that our MCED algorithm is able to generate satisfactory multi-class sampling output. Several application cases including color image halftoning and vectorization are also explored.

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  23. Algorithm 1: Multi-Class Error-Diffusion.
  24. 1: for each spatial position (x,y) do n
  25. 2: p0(x, y) ? ? pi(x, y) i=1
  26. 4: for each spatial position (x,y) do 5: // The first step Qi 6: for each class i := 0 to n do 7: ti(x, y) ? GetDisplacement(p0(x, y), pi(x, y))
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Paper Citation


in Harvard Style

Xiong X., Fan H., Feng J., Liu Z. and Zhou B. (2016). Multi-Class Error-Diffusion with Blue-noise Property . In Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2016) ISBN 978-989-758-175-5, pages 28-38. DOI: 10.5220/0005677300260036


in Bibtex Style

@conference{grapp16,
author={Xiaoliang Xiong and Haoli Fan and Jie Feng and Zhihong Liu and Bingfeng Zhou},
title={Multi-Class Error-Diffusion with Blue-noise Property},
booktitle={Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2016)},
year={2016},
pages={28-38},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005677300260036},
isbn={978-989-758-175-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2016)
TI - Multi-Class Error-Diffusion with Blue-noise Property
SN - 978-989-758-175-5
AU - Xiong X.
AU - Fan H.
AU - Feng J.
AU - Liu Z.
AU - Zhou B.
PY - 2016
SP - 28
EP - 38
DO - 10.5220/0005677300260036