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A Hue-Preserving Tone Mapping Scheme Based on Constant-Hue Plane Without Gamut Problem

Yuma KINOSHITA, Kouki SEO, Artit VISAVAKITCHAROEN, Hitoshi KIYA

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Summary :

We propose a novel hue-preserving tone mapping scheme. Various tone mapping operations have been studied so far, but there are very few works on color distortion caused in image tone mapping. First, LDR images produced from HDR ones by using conventional tone mapping operators (TMOs) are pointed out to have some distortion in hue values due to clipping and rounding quantization processing. Next,we propose a novel method which allows LDR images to have the same maximally saturated color values as those of HDR ones. Generated LDR images by the proposed method have smaller hue degradation than LDR ones generated by conventional TMOs. Moreover, the proposed method is applicable to any TMOs. In an experiment, the proposed method is demonstrated not only to produce images with small hue degradation but also to maintain well-mapped luminance, in terms of three objective metrics: TMQI, hue value in CIEDE2000, and the maximally saturated color on the constant-hue plane in the RGB color space.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E102-A No.12 pp.1865-1871
Publication Date
2019/12/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E102.A.1865
Type of Manuscript
Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category
Image

Authors

Yuma KINOSHITA
  Tokyo Metropolitan University
Kouki SEO
  Tokyo Metropolitan University
Artit VISAVAKITCHAROEN
  Tokyo Metropolitan University
Hitoshi KIYA
  Tokyo Metropolitan University

Keyword