Color Research and Application最新文献_第10页

Cross-ethnic comparison of the effect of garment color on male perception of female attractiveness 服装颜色对男性女性吸引力感知影响的跨民族比较

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-05-16 DOI: 10.1002/col.22858

Zhenhua Luo, Renzo Shamey

引用次数: 0

Testing methods to estimate spectral reflectance using datasets under different illuminants 在不同光源下使用数据集估计光谱反射率的测试方法

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-05-13 DOI: 10.1002/col.22859

Jinghong Xu, Ming Ronnier Luo, Hui Fan

{"title":"Testing methods to estimate spectral reflectance using datasets under different illuminants","authors":"Jinghong Xu, Ming Ronnier Luo, Hui Fan","doi":"10.1002/col.22859","DOIUrl":"https://doi.org/10.1002/col.22859","url":null,"abstract":"With the rapid development of mobile imaging devices, there is a strong desire for accurate image reconstruction. However, the conventional colorimetry system is often related to environmental illuminations. Spectral reflectance is the fingerprint of color and is invariant with environmental illuminations. Therefore, the goal of the present study is to verify different algorithms to reconstruct the spectral reflectance from the camera red, green, and blue responses. In this research, the weighted local sample selection method was first combined with pseudo inverse matrix method (PI) and Wiener estimation method (WE) to investigate the optimal sample number on the model accuracy. The optimum local sample numbers of the two combination methods were established. The performance of five methods was evaluated, including PI, WE, smoothing constraint method, weighted pseudo inverse matrix method (WPI) and weighted Wiener estimation method (WWE) under lightings varying a wide range of correlated color temperature (CCT) from 3000 to 10 000 K. The best algorithm (WPI) in different lighting environments was established. The metamerism of different materials was revealed, the impact of materials on training and testing samples was reported. Finally, the methods' performance under different CCTs was revealed in terms of root mean square error and CIEDE2000, and the results from the theoretical simulation and real camera capturing were compared.","PeriodicalId":10459,"journal":{"name":"Color Research and Application","volume":"48 4","pages":"368-380"},"PeriodicalIF":1.4,"publicationDate":"2023-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50150504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Color induction in the restoration of architecture in historic city centers 历史城市中心建筑修复中的色彩感应

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-04-14 DOI: 10.1002/col.22856

Juan Serra, Ignacio Cabodevilla-Artieda, Ana Torres-Barchino, Jorge Llopis

{"title":"Color induction in the restoration of architecture in historic city centers","authors":"Juan Serra, Ignacio Cabodevilla-Artieda, Ana Torres-Barchino, Jorge Llopis","doi":"10.1002/col.22856","DOIUrl":"https://doi.org/10.1002/col.22856","url":null,"abstract":"In the restoration of historic facades, specialists need to tackle the problem of colors applied to the ornamental elements that appear different on a facade than if they were isolated, because the colors of the surrounding surfaces influence them through color induction. This study evaluates the difference between the colors of ornaments observed in isolation, which we call nominal colors, and on different background colors, which we call induced colors, considering the historic color palette of Valencia as studied by the Color Research Group in Architecture of the Universitat Politècnica de València. The study consisted of the evaluation of 108 color pairs painted on physical cardboards, rated by 26 female students (average age 26.5), under natural lighting conditions, and using the Natural Color System (NCS) Color Atlas for the color match. Results indicate that induced colors have lower NCS blackness compared with nominal ones, and slightly higher or no NCS chromaticness shift. Nominal colors with low chromaticness exhibit an important hue induction effect and tend to shift to a hue that is located opposite to that of the background color in the NCS color circle, this effect being larger when the background has a warm color. The induction effect is larger when ornamental elements and background have similar nominal NCS blackness, and different nominal NCS chromaticness,with nominal hue difference no significant in the induction effect. The colors of ornamental elements that entailed greater induction were those with the lowest NCS chromaticness, and in the case of the background color, those with the highest chromaticness.","PeriodicalId":10459,"journal":{"name":"Color Research and Application","volume":"48 5","pages":"497-512"},"PeriodicalIF":1.4,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/col.22856","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50132015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gruppo del Colore—Associazione Italiana Colore 意大利色彩协会

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-04-10 DOI: 10.1002/col.22857

Andrew Stockman

引用次数: 1

Emocolor: An assistant design method for emotional color matching based on semantics and images Emoclor:一种基于语义和图像的情感配色辅助设计方法

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-04-10 DOI: 10.1002/col.22851

Lekai Zhang, Ming Li, Yingfan Wang, Baixi Xing, Xiaojian Liu, Zhichuan Tang, Lei Shi

{"title":"Emocolor: An assistant design method for emotional color matching based on semantics and images","authors":"Lekai Zhang, Ming Li, Yingfan Wang, Baixi Xing, Xiaojian Liu, Zhichuan Tang, Lei Shi","doi":"10.1002/col.22851","DOIUrl":"https://doi.org/10.1002/col.22851","url":null,"abstract":"Much research has been done on the relationship between emotions and colors, and many color scheme recommendation tools have been developed. These tools can often help recommend a suitable color scheme to express a certain emotion, but it is still difficult to design satisfying schemes based on such recommendations. In this study, based on the Color Scheme Bible, Compact Edition, we developed Emocolor, which allows professionals to generate a large number of color schemes based on emotional words or emotional images. It is also used to iteratively optimize the generated color schemes based on an interactive genetic algorithm to find the color scheme design that best matches the user's emotion. Through the evaluation of tram color schemes based on emotional words, Emocolor can effectively generate tram color schemes that match users’ emotions. It can also effectively transfer the emotion of an image with a single dominant color to a tram color scheme. In short, Emocolor can help professionals describe the relationship between emotion and color in a more accurate way and design emotional color schemes. Emocolor can be applied in advertising design, product design, interior design, and other fields.","PeriodicalId":10459,"journal":{"name":"Color Research and Application","volume":"48 3","pages":"312-327"},"PeriodicalIF":1.4,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50137055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on the equi-depth of color depth formulas based on color discrimination threshold and acceptable tolerance 基于颜色辨别阈值和容许偏差的等深度颜色深度公式研究

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-04-08 DOI: 10.1002/col.22854

Hongying Yang, Mengyuan Qi, Ge Zhang, Zhihui Yang, Nuoya Feng, Yubin Yang, Changhai Xu

{"title":"Investigation on the equi-depth of color depth formulas based on color discrimination threshold and acceptable tolerance","authors":"Hongying Yang, Mengyuan Qi, Ge Zhang, Zhihui Yang, Nuoya Feng, Yubin Yang, Changhai Xu","doi":"10.1002/col.22854","DOIUrl":"https://doi.org/10.1002/col.22854","url":null,"abstract":"Accurate characterization of color depth is important for assessing a dye's relative strength, color fastness, and so on. There are several formulas for color depth, however, with evaluation effects that are quite different. In this study, we attempt to investigate the equi-depth properties of the color depth formulas so as to provide a reference for selection. One thousand two hundred and six color samples were dyed around six standard depths of three hues in SDC Standard Depth Scales. Sixteen observers were recruited for “Pass–Fail” psychophysical experiments. More than 30 000 experimental data points were obtained to calculate the values of discrimination thresholds and acceptable tolerances at six different standard depths for each formula. The equi-depth properties of five main color depth formulas were statistically analyzed through their coefficients of variation (CV)% values. Results show that the Yang3 formula is optimal for both color depth discrimination threshold and acceptable tolerance, and its average wrong decision is less than the minimum wrong decision of all observers, as well as those of the other four formulas. Overall, Yang3 formula shows the best equi-depth and highest relatively accuracy among the five formulas.","PeriodicalId":10459,"journal":{"name":"Color Research and Application","volume":"48 3","pages":"328-336"},"PeriodicalIF":1.4,"publicationDate":"2023-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50134920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The chromatic atmosphere of Chilean Patagonia: The color of vastness 智利巴塔哥尼亚的色彩氛围：浩瀚的色彩

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-04-07 DOI: 10.1002/col.22855

Elisa Cordero-Jahr, Gonzalo Cerda-Brintrup

引用次数: 0

Will the real units of Q please stand up? 请Q的真正单位站起来好吗？

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-04-03 DOI: 10.1002/col.22852

Hugh S. Fairman

引用次数: 0

On the questionable utility of color space for understanding perception 论色彩空间在理解感知中的可疑效用

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-03-25 DOI: 10.1002/col.22853

Mark D. Fairchild

引用次数: 1

IF 1.4 3区工程技术

Color Research and Application Pub Date : 2023-03-23 DOI: 10.1002/col.22850

Kumiko Kikuchi, Masako Katsuyama, Takako Shibata, Jon Yngve Hardeberg

{"title":"Age-related changes in surface reflection, diffuse reflection, and subsurface scattering light of facial skin: Luminance value measured by the system for the optical properties of facial skin","authors":"Kumiko Kikuchi, Masako Katsuyama, Takako Shibata, Jon Yngve Hardeberg","doi":"10.1002/col.22850","DOIUrl":"https://doi.org/10.1002/col.22850","url":null,"abstract":"We have developed a system that separates and measures the optical properties of skin that determine its visual quality, that is, the surface reflection, diffuse reflection, and subsurface scattering components of the skin. This system includes two polarization filters that separate light from the skin into a surface reflection component image and a diffuse reflection component image. Furthermore, by using a projector as a light source and irradiating the skin using a high-frequency binary illumination pattern, the subsurface scattering component image alone can be separated and generated. Application of an algorithm that calculates the luminance value Y for each component image not only makes it possible to analyze each light signal from the skin quantitatively, but also enables understanding of how each light signal is related to the skin's overall appearance. Using the proposed system, we performed a survey of 154 Japanese women aged from their 20s to their 70s and analyzed age-related changes in the optical properties of their skin. The results revealed the following. First, the luminance value Y of the surface reflection from the cheek and its standard deviation within the analysis area increase with age. Second, the Y value of diffuse reflection from the skin decreases with age. Third, the amount of light in the subsurface scattering components also decreases with age. The proposed system is expected to be suitable for a wide range of applications, including color science, and various studies of the appearance of human skin.","PeriodicalId":10459,"journal":{"name":"Color Research and Application","volume":"48 3","pages":"296-311"},"PeriodicalIF":1.4,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50153704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1