The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Propomos um novo esquema de mapeamento de tons com preservação de matiz. Várias operações de mapeamento de tons foram estudadas até agora, mas existem poucos trabalhos sobre distorção de cores causada no mapeamento de tons de imagens. Primeiro, as imagens LDR produzidas a partir de HDR usando operadores convencionais de mapeamento de tons (TMOs) apresentam alguma distorção nos valores de matiz devido ao processamento de quantização de corte e arredondamento. A seguir, propomos um novo método que permite que as imagens LDR tenham os mesmos valores de cores maximamente saturadas que as imagens HDR. As imagens LDR geradas pelo método proposto apresentam menor degradação de matiz do que as LDR geradas por TMOs convencionais. Além disso, o método proposto é aplicável a qualquer TMO. Em um experimento, o método proposto demonstra não apenas produzir imagens com pequena degradação de matiz, mas também manter a luminância bem mapeada, em termos de três métricas objetivas: TMQI, valor de matiz no CIEDE2000 e a cor máxima saturada na constante. plano de matiz no espaço de cores RGB.
Yuma KINOSHITA
Tokyo Metropolitan University
Kouki SEO
Tokyo Metropolitan University
Artit VISAVAKITCHAROEN
Tokyo Metropolitan University
Hitoshi KIYA
Tokyo Metropolitan University
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Yuma KINOSHITA, Kouki SEO, Artit VISAVAKITCHAROEN, Hitoshi KIYA, "A Hue-Preserving Tone Mapping Scheme Based on Constant-Hue Plane Without Gamut Problem" in IEICE TRANSACTIONS on Fundamentals,
vol. E102-A, no. 12, pp. 1865-1871, December 2019, doi: 10.1587/transfun.E102.A.1865.
Abstract: 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.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E102.A.1865/_p
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@ARTICLE{e102-a_12_1865,
author={Yuma KINOSHITA, Kouki SEO, Artit VISAVAKITCHAROEN, Hitoshi KIYA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Hue-Preserving Tone Mapping Scheme Based on Constant-Hue Plane Without Gamut Problem},
year={2019},
volume={E102-A},
number={12},
pages={1865-1871},
abstract={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.},
keywords={},
doi={10.1587/transfun.E102.A.1865},
ISSN={1745-1337},
month={December},}
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TY - JOUR
TI - A Hue-Preserving Tone Mapping Scheme Based on Constant-Hue Plane Without Gamut Problem
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1865
EP - 1871
AU - Yuma KINOSHITA
AU - Kouki SEO
AU - Artit VISAVAKITCHAROEN
AU - Hitoshi KIYA
PY - 2019
DO - 10.1587/transfun.E102.A.1865
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E102-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2019
AB - 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.
ER -