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
No processamento de imagens coloridas, é necessária a preservação da tonalidade. Portanto, modelos perceptivos de cores como HSI e HSV têm sido utilizados. Matiz-Saturação-Intensidade (HSI) é um modelo de cores público e muitas aplicações de cores foram feitas com base neste modelo. No entanto, a transformação do espaço de cores HSI convencional (C-HSI) para o espaço de cores RGB após o processamento da intensidade/saturação no espaço de cores C-HSI geralmente gera o problema de gama, porque a forma do espaço de cores C-HSI é triangular. pirâmide que inclui o espaço de cores RGB. Quando a saída do resultado do processamento de intensidade/saturação está localizada fora da região comum do espaço de cores RGB e do espaço de cores C-HSI, é necessário passar para o espaço de cores RGB. É proposta uma forma eficaz de algoritmo de correção de saturação com preservação de matiz e intensidade. De acordo com o algoritmo de correção de saturação proposto, o valor de saturação corrigido é igual ao resultado do processamento no espaço de cores HSI ideal, cuja gama é igual à gama RGB.
Minako KAMIYAMA
Tokyo City University
Akira TAGUCHI
Tokyo City University
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Minako KAMIYAMA, Akira TAGUCHI, "Color Conversion Formula with Saturation Correction from HSI Color Space to RGB Color Space" in IEICE TRANSACTIONS on Fundamentals,
vol. E104-A, no. 7, pp. 1000-1005, July 2021, doi: 10.1587/transfun.2020EAL2087.
Abstract: In color image processing, preservation of hue is required. Therefore, perceptual color models such as HSI and HSV have been used. Hue-Saturation-Intensity (HSI) is a public color model, and many color applications have been made based on this model. However, the transformation from the conventional HSI (C-HSI) color space to the RGB color space after processing intensity/saturation in the C-HSI color space often generates the gamut problem, because the shape of C-HSI color space is a triangular pyramid which includes the RGB color space. When the output of intensity/saturation processing result is located in the outside of the common region of RGB color space and C-HSI color space, it is necessary to move to the RGB color space. The effective way of hue and intensity preserving saturation correction algorithm is proposed. According to the proposed saturation correction algorithm, the corrected saturation value is same as the processing result in the ideal HSI color space whose gamut same as the RGB gamut.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2020EAL2087/_p
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@ARTICLE{e104-a_7_1000,
author={Minako KAMIYAMA, Akira TAGUCHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Color Conversion Formula with Saturation Correction from HSI Color Space to RGB Color Space},
year={2021},
volume={E104-A},
number={7},
pages={1000-1005},
abstract={In color image processing, preservation of hue is required. Therefore, perceptual color models such as HSI and HSV have been used. Hue-Saturation-Intensity (HSI) is a public color model, and many color applications have been made based on this model. However, the transformation from the conventional HSI (C-HSI) color space to the RGB color space after processing intensity/saturation in the C-HSI color space often generates the gamut problem, because the shape of C-HSI color space is a triangular pyramid which includes the RGB color space. When the output of intensity/saturation processing result is located in the outside of the common region of RGB color space and C-HSI color space, it is necessary to move to the RGB color space. The effective way of hue and intensity preserving saturation correction algorithm is proposed. According to the proposed saturation correction algorithm, the corrected saturation value is same as the processing result in the ideal HSI color space whose gamut same as the RGB gamut.},
keywords={},
doi={10.1587/transfun.2020EAL2087},
ISSN={1745-1337},
month={July},}
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TY - JOUR
TI - Color Conversion Formula with Saturation Correction from HSI Color Space to RGB Color Space
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1000
EP - 1005
AU - Minako KAMIYAMA
AU - Akira TAGUCHI
PY - 2021
DO - 10.1587/transfun.2020EAL2087
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E104-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2021
AB - In color image processing, preservation of hue is required. Therefore, perceptual color models such as HSI and HSV have been used. Hue-Saturation-Intensity (HSI) is a public color model, and many color applications have been made based on this model. However, the transformation from the conventional HSI (C-HSI) color space to the RGB color space after processing intensity/saturation in the C-HSI color space often generates the gamut problem, because the shape of C-HSI color space is a triangular pyramid which includes the RGB color space. When the output of intensity/saturation processing result is located in the outside of the common region of RGB color space and C-HSI color space, it is necessary to move to the RGB color space. The effective way of hue and intensity preserving saturation correction algorithm is proposed. According to the proposed saturation correction algorithm, the corrected saturation value is same as the processing result in the ideal HSI color space whose gamut same as the RGB gamut.
ER -