• Title/Summary/Keyword: color evaluation

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Objective evaluation of the color of tongue substance using L*a*b* color coordinates

  • Park, Young-Jae;Park, Young-Bae
    • Advances in Traditional Medicine
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    • v.6 no.2
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    • pp.112-120
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    • 2006
  • The purpose of this study was to analyze whether quantitative evaluation of the color of the tongue substance using $L^*a^*b^*$ color coordinates system could minimize the problems arising from the different illuminating conditions or not. In controlled 4 different illuminating conditions (by natural light, flashlight, f-number, shutter speed),12 healthy subjects were photographed of their tongue substance through a digital camera (C-2100uz, Olympus Co.), both on the top surface and on the bottom surface of the tongue substance by two examiners, twice at 3 day intervals. Clinician evaluation was also performed grading the redness of the tongue substance in the form of 5-points scale by 6 clinicians. As a result, there was no significant difference in color differences between the color of the tongue substance and the reference red card in the 4 different illuminating conditions. Intra-rater reliability was satisfied and even though limitedly, inter-rater reliability was satisfied. Color differences were significantly correlated with the results by the clinicians, although they were applicable limitedly to specific illuminating conditions. Our results indicate that the application of the color differences in tongue diagnosis could not only evaluate the color information quantitatively, but also minimize the problems arising from the different illuminating conditions and that there was the significant difference in the visual evaluation of the red color of the tongue substance, both between the clinicians and between the illuminating conditions.

Colorimetric Evaluation on Color Reproduction Properties of the Colorants for Offset Printing and Proofing (오프셋인쇄 및 교정인쇄용 색료의 색재현 특성에 대한 측색적 평가)

  • Kang, Sang-Hoon
    • Journal of the Korean Graphic Arts Communication Society
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    • v.21 no.2
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    • pp.31-42
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    • 2003
  • The optimum color proofing system with the similar colorants to the printing system has to be used in high quality offset color printing. And so, the evaluation on color reproduction properties of the colorants for proofer and press are very important. In this paper, the optimum color proofing method is recommended by means of colorimeric comparative evaluation on the color reproduction properties such as color gamut, color difference, hue error of the colorants for the proofing system of CRT monitor, inkjet printer, dye sublimation type digital proofer, and the actual printing system of offset press.

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The emotional evaluation of color pattern based on information fusion (정보융합 기법을 이용한 칼라 패턴의 감성 평가)

  • 김성환;엄경배;이준환
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2000.11a
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    • pp.23-27
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    • 2000
  • In this paper, we propose an emotional evaluation model based on information fusion. This model can transform the physical features of a color pattern to the emotional features. Our proposed model consists of the fuzzy logic system and neural network model. The evaluation values produced by them were fused. The model shows comparable performances to the neural network and fuzzy logic system for the approximation of the nonlinear transforms. We believe the evaluated results of a color pattern can be used to the emotion-based color image retrievals.

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The Visual Evaluation of the Image of Korean Dress according to Color Coordination (컬러 코디네이션에 따른 한복 이미지의 시각적 평가)

  • Kang, Kyung-Ja;Paeng, Suk-Kyung
    • Korean Journal of Human Ecology
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    • v.16 no.5
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    • pp.987-996
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    • 2007
  • The purpose of this study is to find out the effect of three clothing cues(jacket color, skirt color, and tone of Korean dress) on the image of Korean dress wearer using tone-in-tone coloration. The experimental materials developed for this study are a set of stimuli and response scales. The stimuli are 16 color pictures manipulated with three clothing cues by drawing. The 7-point scale designed for visual evaluation of female impression formation includes 24 bipolar adjectives. The subjects were 192 undergraduate female students in Chinju city. The results of this study are as follow: As analyzing the image of female figure by the jacket color, skirt color, and tone, three factors including youth activity, attractiveness, and visibility were identified. Among these factors, youth activity and attractiveness were proved to be more important. Each dimensional image was affected by color coordination of jacket color, skirt color and tone of korean dress. Therefore, the image of Korean dress wearer could be varied by color coordination of jacket color, skirt color and tone of Korean dress.

Post Occupancy Evaluation on the Color Design in University Classroom (강의실 색채 환경 개선 후 평가 연구)

  • Yoon, A-Ram;Ha, Mi-Kyoung
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2005.05a
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    • pp.191-195
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    • 2005
  • This study examines how the students evaluate the color of classrooms in university after remodeling. This is a elementary study, which suggests a direction of study on a criterion of color design in classroom remodeling. The study was progressed through visiting classrooms and POE(post occupancy evaluation). The results indicate that most students satisfied with color environment, and the project of remodeling has increased the level of satisfaction in comparison with before. The level of satisfaction with the color of the architectural elements was high. The level was affected by wall color, floor color and color combination with elements' color. The overall satisfaction with classroom color was correlated with all architectural elements' color. The result shows that the positive effect and insufficiency of color design in remodeling. Also it shows that the color combination is one of important factors of satisfaction of color environment.

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A Study on the Emotional Evaluation of fabric Color Patterns

  • Koo, Hyun-Jin;Kang, Bok-Choon;Um, Jin-Sup;Lee, Joon-Whan
    • Science of Emotion and Sensibility
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    • v.5 no.3
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    • pp.11-20
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    • 2002
  • There are Two new models developed for objective evaluation of fabric color patterns by applying a multiple regression analysis and an adaptive foray-rule-based system. The physical features of fabric color patterns are extracted through digital image processing and the emotional features are collected based on the psychological experiments of Soen[3, 4]. The principle physical features are hue, saturation, intensity and the texture of color patterns. The emotional features arc represented thirteen pairs of adverse adjectives. The multiple regression analyses and the adaptive fuzzy system are used as a tool to analyze the relations between physical and emotional features. As a result, both of the proposed models show competent performance for the approximation and the similar linguistic interpretation to the Soen's psychological experiments.

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Evaluation of Lighting Environment of Residential Space for Senior People by each Life Behavior with Mock-up Model (실물대 모형을 이용한 고령자 주거공간의 생활행위별 조명환경 평가에 관한 연구)

  • Kim, Byoung Soo;Yim, Oh Yon
    • KIEAE Journal
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    • v.7 no.5
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    • pp.35-40
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    • 2007
  • The purpose of this study is to execute evaluation experiment to know the evaluation property of lighting environment of residential space for senior people, considering visual characteristics along aging, and finally provide basic data for the lighting plan to ensure the visual amenity. Processes of this study are as follows;1) Analyzed the variation property of visual sensibility and visual ability of senior people along aging. 2) Selected 3 types of life behavior(rest, conversation and reading) after checking life behavior in residential space for senior people based on advanced study. 3) Made the Mock-up Model that Dimming is possible, actual furnace to model. 4) Executed sensitivity evaluation experiment about lighting environment. 5) Analyzed evaluation property of lighting environment of residential space for senior people. Results of this study are as follows, 1) With lens-filter, we got comfort and amenity in bulb-color lamp which has similar color temperature with red of lens filter. 2) Lighting environment tests during conversation : With lens filters, they felt comfort on bulb color in case of higher illuminance than 850lux and daylight color in 500lux. 3) Lighting environment tests at reading : With lens filter, bulb color got better score in brightness and appropriateness than daylight color.

Consumer Evaluation on Visual Sensibility of Stripe Pattern Shirts - Focusing on Separation Coloration - (줄무늬 셔츠의 시각적 감성에 대한 소비자 평가 - 세퍼레이션 배색을 중심으로 -)

  • Choi, Soo-Kyoung
    • Journal of the Korea Fashion and Costume Design Association
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    • v.16 no.2
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    • pp.71-80
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    • 2014
  • The purpose of this study was to investigate consumer evaluation on visual sensibility of stripe pattern shirts for separation coloration. The experimental materials developed for this study were a set of clothing stimuli and response scales. The clothing stimuli were 27 color pictures, in which separation color(white: W, gray: G, black: B), separation width(small: S, medium: M, large: L), and combination color(magenta and yellow: MY, magenta and cyan: MC, yellow and cyan: YC) were manipulated. The subjects of this research were female in their 20s to 30s living in Seoul, Gwangju, Daegu, Busan, and Changwon. The investigation was carried out at December 2013. The data were analyzed by using SPSS program. Analysis methods were factor analysis, ANOVA, and Duncan-test. Results of this study were as follow.; The factors of visual sensibility according to separation color, separation width, and combination color consisted of four dimensions of attractiveness, appeal, individuality freshness, and grace. Separation color showed an independent effect on appeal and individuality freshness. Combination color showed an independent effect on individuality freshness. Interaction effects of separation color and separation width on appeal were found. Interaction effects of separation color and combination color on individuality freshness and grace were found. The study results are highly expected to be used as useful sources in a fashion product.

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The Subjective Evaluation on White Light Property and Color Appearance of Single Chip LED and RGB Multi Chip LED (단일칩 LED와 RGB 멀티칩 LED의 백색광 특성 및 색 보임에 대한 주관평가 연구)

  • Sim, Yun-Ju;Kim, In-Tae;Choi, An-Seop
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.29 no.1
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    • pp.1-8
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    • 2015
  • To produce the white light, there are a single chip method using the blue light and phosphor coating, a multi chip method by mixing R, G, B light.. Multi chip method is proper for the smart lighting system by controling color and color temperature. And color rendering of single chip LED is good by even spectral distribution. To apply application technic like smart light system, this paper analyzed the properties of single chip LED and RGB multi chip LED, and implemented the 2 part subject evaluation for single chip LED and RGB multi chip LED. The first part is comparison of properties for single chip LED and RGB multi chip and second part is color appearance evaluation of 8 colors in each lighting environment.

A study of sight-psychological effects by a color area of greenspace (녹지의 색면적에 따른 시각심리적 효과에 관한 연구)

  • 김은일
    • Journal of the Korean Institute of Landscape Architecture
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    • v.26 no.1
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    • pp.36-43
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    • 1998
  • We compared the electroencephalogram, blood pressure, and sensory evaluation inspectioni several color of Petunia hybrida to analyze the physiopsychological effects of a plant. Considering occipital is related to visuosensory field, green color is thought as mild visual stimulator unlike to pink color. The results are coincident with the well-known facts that green color is less stimulating color. It is also accorded with the sensory evaluation results that green color showed te feeling of blue and stable. In case of green color is showed the feeling of blue and stable. In case of green color the generatioin of alpha waves increased according to the increase color area. Therefore it is thought that green color helps decrease of visual stimulation and increase in visual stability. However it is thought that pink has less physiopsychological effects on human beings depending on area sizes than green has.

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