scholarly journals Perfect appearance match between self-luminous and surface colors can be performed with isomeric spectra

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Akari Kagimoto ◽  
Katsunori Okajima
Keyword(s):  
Color Matching ◽  
Surface Color ◽  
Color Science ◽  
Cross Media ◽  
Reflected Light ◽  
Tristimulus Values ◽  
Spectral Distributions ◽  
Different Color ◽  
Essential Problem ◽  
Isomeric Pairs

Abstract Surface color results from a reflected light bounced off a material, such as a paper. By contrast, self-luminous color results directly from an emitting light, such as a Liquid Crystal (LC) display. These are completely different mechanisms, and thus, surface color and self-luminous color cannot be matched even though both have identical tristimulus values. In fact, previous research has reported that metameric color matching fails among diverse media. However, the reason for this failure remains unclear. In the present study, we created isomeric color-matching pairs between self-luminous and surface colors by modulating the spectral distribution of the light for surface colors. Then, we experimentally verified whether such color matching can be performed. The results show that isomeric color matching between self-luminous and surface colors can be performed for all participants. However, metameric color matching fails for most participants, indicating that differences in the spectral distributions rather than the different color-generating mechanisms themselves are the reason for the color matching failure between different devices. We experimentally demonstrated that there is no essential problem in cross-media color matching by generating isomeric pairs. Our results can be considered to be of great significance not only for color science, but also for the color industry.

scholarly journals Surface color matching under uniform vs. non-uniform mesopic light levels

2009 ◽  
Vol 9 (14) ◽  
pp. 61-61
Author(s):  
R. Knight ◽  
E. Knight
Keyword(s):  
Color Matching ◽  
Surface Color ◽  
Light Levels

Faithful cross-media color matching using neural networks

1999 ◽  
Vol 32 (3) ◽  
pp. 465-476 ◽  
Author(s):  
E. Boldrin ◽  
R. Schettini
Keyword(s):  
Neural Networks ◽  
Color Matching ◽  
Cross Media

Establishment and Evaluation of Color Appearance Datasets about Packaging and Printing Atlas of High Gloss

2013 ◽  
Vol 469 ◽  
pp. 269-272
Author(s):  
Jing Liang ◽  
Yu Tong Piao ◽  
Ning Fang Liao
Keyword(s):  
Correlation Coefficient ◽  
Coefficient Of Variation ◽  
Color Appearance ◽  
Mathematical Statistics ◽  
Light Sources ◽  
Color Matching ◽  
Coated Paper ◽  
Science Field ◽  
Color Science ◽  
Color Printing

The prediction of color appearance is the basic theory and technology in modern color science field. The aim of this study is to evaluate the color appearance of packaging and printing atlas. This paper took high gloss double-sided coated paper color printing atlas as the experimental samples. The color samples are measured using ACS color-matching instrument under different light sources (D65, A and TL84), then based on color science and visual psychophysics methods, establishing the datasets of the samples’ color appearance. We use mathematical statistics methods, correlation coefficient R2 and coefficient of variation CV, to evaluate the visual prediction results in the color atlas, under three different light sources.

Comparative Study of Ink-Jet Color Proofing Systems Based on Color Management

2014 ◽  
Vol 910 ◽  
pp. 405-409
Author(s):  
Chang Xian Cheng ◽  
Yan Mei Liang
Keyword(s):  
Color Difference ◽  
Management Systems ◽  
Color Management ◽  
Color Matching ◽  
Color Gamut ◽  
Matching Effect ◽  
Ink Jet ◽  
Color Differences ◽  
Jet Printing ◽  
Different Color

Abstract. In order to study the color matching effect of ink-jet printing press under different color management systems. I applied EFI and ORIS series color management soft wares separately to the same Epson ink-jet printer and optimized the proofing with exploring the most reasonable settings. After that, I will compare the gamut and color difference in a special color management module, and also make a contrast with a standard color gamut to check the color matching effect. The results show that the average color differences of the two soft wares are all below 1.0. However, differences measured by ORIS is lower, falling to 0.5 only, which implies the proofing under ORIS color management is more similar to the presswork and more stable.

Modification of color adaption on cross-media color matching

2012 ◽  
Author(s):  
Min Huang ◽  
Bing Wu ◽  
Haoxue Liu ◽  
Yu Liu
Keyword(s):  
Color Matching ◽  
Cross Media

scholarly journals Assessment of #TheDress With Traditional Color Vision Tests: Perception Differences Are Associated With Blueness

i-Perception ◽  
2018 ◽  
Vol 9 (2) ◽  
pp. 204166951876419 ◽  
Author(s):  
Claudia Feitosa-Santana ◽  
Margaret Lutze ◽  
Pablo A. Barrionuevo ◽  
Dingcai Cao
Keyword(s):  
Color Vision ◽  
Color Perception ◽  
Color Naming ◽  
Color Matching ◽  
Color Preferences ◽  
Bright Region ◽  
Significant Difference ◽  
Color Vision Tests ◽  
Different Color ◽  
Common Association

Based on known color vision theories, there is no complete explanation for the perceptual dichotomy of #TheDress in which most people see either white-and-gold (WG) or blue-and-black (BK). We determined whether some standard color vision tests (i.e., color naming, color matching, anomaloscope settings, unique white settings, and color preferences), as well as chronotypes, could provide information on the color perceptions of #TheDress. Fifty-two young observers were tested. Fifteen of the observers (29%) reported the colors as BK, 21 (40%) as WG, and 16 (31%) reported a different combination of colors. Observers who perceived WG required significantly more blue in their unique white settings than those who perceived BK. The BK, blue-and-gold, and WG observer groups had significantly different color preferences for the light cyan chip. Moreland equation anomaloscope matching showed a significant difference between WG and BK observers. In addition, #TheDress color perception categories, color preference outcomes, and unique white settings had a common association. For both the bright and dark regions of #TheDress, the color matching chromaticities formed a continuum, approximately following the daylight chromaticity locus. Color matching to the bright region of #TheDress showed two nearly distinct clusters (WG vs. BK) along the daylight chromaticity locus and there was a clear cutoff for reporting WG versus BK. All results showing a significant difference involved blue percepts, possibly due to interpretations of the illuminant interactions with the dress material. This suggests that variations in attributing blueness to the #TheDress image may be significant variables determining color perception of #TheDress.

Study on the Surface Color Mixing Effect of Fabric with Different Colors of Warp and Weft

2011 ◽  
Vol 175-176 ◽  
pp. 389-393 ◽  
Author(s):  
Jian Hua Sui ◽  
Xiao Li Wen
Keyword(s):  
Measurement Instrument ◽  
Color Measurement ◽  
Surface Color ◽  
Mixing Effect ◽  
Hue Angle ◽  
Optoelectronic Integration ◽  
Color Mixing ◽  
Different Color ◽  
The Relationship

The fabrics made of different color values of Lightness (L), Chromaticity (C) and hue angle (h) of warp and weft silks were designed to testify color mixing. According to Glassman’s two-color adding and mixing principle, theoretical values of L0, C0 and h0 for all yarns were calculated. After all yarns were weaved, L1, C1 and h1’s value of each fabric were measured by ultrascan PRO of Optoelectronic integration color measurement instrument. The differences between measured and theoretical values expressed by ΔL, ΔC and Δh were calculated. ΔL, ΔC and Δh characteristics were analyzed and the relationship between ΔL, ΔC and Δh and the colors of warp and weft were discussed. The effects of the relative portion of warp and weft silks, the collection and distribution of interweave points, the uniformity of organized points’ distribution on color mixing based on the measured and theoretical values of fabric were further investigated.

Digital Color Appearance Evaluation System

2015 ◽  
Vol 731 ◽  
pp. 72-75
Author(s):  
Jing Liang ◽  
Yu Tong Piao ◽  
Shu Jie Wang ◽  
Hao Huang
Keyword(s):  
Digital Image ◽  
Evaluation System ◽  
Chromatic Aberration ◽  
Color Difference ◽  
Color Appearance ◽  
Color Display ◽  
Image Conversion ◽  
Tristimulus Values ◽  
Different Color ◽  
Difference Calculation

The purpose of this study is to achieve chromatic aberration, color appearance attribute value fast computing; and observe conditions in different color appearance of digital image conversion between digital color appearance evaluation system. Digital color appearance evaluation system through analysis showed that the final form that can be color difference calculation, calculation of color appearance attributes forward and reverse computing, digital image conversion, to obtain a digital image tristimulus values, color point color display and so on.

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