• Title/Summary/Keyword: Color separation

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The Characteristics of Separation Color Coordination In Current Women's Fashion collections of Paris, Milan, N.Y, London from 2004 SS - 2008 A W - centering on the types of color scheme, color harmony, separation color - (최신 여성 패션에 나타난 세퍼레이션 색채 코디네이션의 특성)

  • Kwon, Hae-Sook
    • Journal of Fashion Business
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    • v.12 no.5
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    • pp.94-110
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    • 2008
  • The main objective of this research was to understand the characteristics of separation color coordination of contemporary female fashion through the analysis of 'pre-a-porter Collections' of four collections (i. e. cities) - Paris, Milan, New York, London - from the periods of 2004 S/S to 2008/9 A/W. The data collection of 265 was done by reviewing 'pre-a-porter Collections' magazine and total 265 observations were made. Statistical analysis of frequency and also qualitative interpretation of separation color coordination characteristics were completed. The main findings were; (1) In separation color coordination of contemporary women's fashion collections, there were three main types of color scheme which were classified into seven detailed categories of color combination. First was the achromatic color & one chromatic separation color scheme which was classified into four categories of - black & white, black & grey, white & grey, and grey & grey - color combination. Second was the chromatic colors & one achromatic separation color scheme which classified into two categories of achromatic & chromatic color & one achromatic separation color combination, and chromatic colors & one achromatic separation color combination. Third was chromatic colors and one chromatic separation color combination. (2) The achromatic colors and one chromatic separation color scheme showed two phases of reinforcing the strong and modern image, or softening the hard and dull image of achromatic color combination. In color schemes which used more than two chromatic colors, the separation color frequently converted the tedious and monotonous fashion image, which caused by identical or similarity in color or tone harmony, into more attractive and interesting. (3) In conclusion, through the various use and coordination of various color schemes, color harmony and separation colors, the separation color coordination in contemporary female fashion has been suggested the effective way of color combination which can lead the visual pleasure and the vitality along with the unity and the harmony. This characteristics can create various images and visual diversity for fashion. The types and the use of color scheme and separation color showed different trends in four collections.

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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Six color separation using the color difference and granularity (색차와 낟알 무늬 값을 이용한 6색 분리 방법)

  • 손창환;김윤태;조양호;하영호
    • Proceedings of the IEEK Conference
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    • 2003.11a
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    • pp.245-248
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    • 2003
  • This parer proposes the six color separation using th color difference and granularity. Conventional method using the color difference increases the graininess in the bright region due to the usage of the cyan or magenta. To reduce the graininess in the bright region, we proposed the six color separation minimizing the graininess within the tolerance of the co]or difference. Initially, granularity is calculated based on the standard deviation of the lightness value and chrominance of the SCIELAB space and is applied to the six color separation using the color difference. Proposed six color separation using the color difference and granularity reduces the graininess in the bright region and obtains the smooth tone.

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Analysis of Color Uniformity of White LED Lens Packages for Direct-lit LCD Backlight Applications

  • Joo, Byung-Yun;Ko, Jae-Hyeon
    • Journal of the Optical Society of Korea
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    • v.17 no.6
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    • pp.506-512
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    • 2013
  • Recently, the color separation issue of wide-spreading white LEDs has attracted attention due to their wide applicability as light sources in direct-lit LCD backlights. These wide-spreading LED packages usually consist of LED chips, a color-conversion phosphor layer, and a light-shaping lens. The technical aspect of this color issue was related to a method for balancing the yellow spectral component emitting from phosphors with respect to the blue one from the LED chip as a function of viewing angle. In this study, we suggested an approach for carrying out quantitative analysis for the color separation problem occurring in wide-spreading LED packages by optical simulation. In addition, the effect of an internal scattering layer on the color uniformity was investigated, which may be considered as a potential solution for this problem.

Optimization of Cutoff Shields in Projection Headlight Systems to Achieve High Intensity Gradient and Low Color Separation at the Cutoff Line

  • Joo, Byung-Yun;Ko, Jae-Hyeon
    • Journal of the Optical Society of Korea
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    • v.20 no.1
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    • pp.118-124
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    • 2016
  • The shape and location of the cutoff shield in a projection-type headlight system were optimized by a ray-tracing technique. A shield based on a Petsval surface showed better cutoff characteristics than a flat or cylindrical shield, such as a sharp intensity gradient and less color separation at the cutoff line. Adjustment of the shield’s location between the reflector and the aspheric lens further improved its cutoff characteristics.

Design and Analysis of Color Separation Grating by Using Fresnel Diffraction Theory

  • Chen, Chien-Hung;Lin, Hoang-Yan
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.1505-1509
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    • 2006
  • We use the color separation grating (CSG) to split colored light into the sub-pixel of LCD to enhance the optical efficiency as compared with that of using color filter. Based on the Fresenl diffraction theory, the theoretical optical efficiency can reach 66-81%, ranging almost from 2 to 2.5 times of that using color filters.

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Extraction of Automobile License Plate and Separation of Character Region Using Hue and saturation (색조와 순도를 이용한 차량번호판 검출 및 문자영역 분리)

  • 박종욱;엄재원;최태영
    • Proceedings of the IEEK Conference
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    • 1999.11a
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    • pp.1081-1084
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    • 1999
  • This paper proposes a method of extracting automobile license plate information using color image processing and separation of character regions. The hue and saturation of color information is need for license plate extraction and the specified standard location ratio is need for character region separation. Simulation results show that the proposed algorithm can detect license plates and separate character regions successfully.

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Improvement of Color and Luminance Uniformity of the Edge-Lit Backlight Using the RGB LEDs

  • Son, Chang-Gyun;Yi, Jong-Hoon;Gwag, Jin-Seog;Kwon, Jin-Hyuk;Park, Gyeung-Ju
    • Journal of the Optical Society of Korea
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    • v.15 no.3
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    • pp.272-277
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    • 2011
  • The effect of the M-window color mixing bar on the characteristics of color mixing and hot spots in the edge-lit backlight employing red (R), green (G), blue (G) light emitting diodes (LED) were studied in terms of the structure of the M-window color mixing bar. The rays from RGB LEDs entering the M-window bar were mixed by internal reflection and scattering inside the M-window bar so that the hot spots and color separation were minimized. The M-window bar was designed and fabricated and the simulation results are matched quite well to experimental data.

Design and fabrication of dichroic mirror and broadband H/R mirror for color separation (색분리를 위한 Dichroic미러 및 광대역 고반사 미러의 설계와 제작)

  • 박영준;박정호;황영모;김용훈;이진호;이상학
    • Korean Journal of Optics and Photonics
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    • v.8 no.3
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    • pp.183-188
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    • 1997
  • Cut-off filters would reject all the radiation below and transmit all that above a certain wavelength or vice versa. In this paper, we study design and farbrication of dichroic mirror and broadband high reflective mirror for color separation of white laser beam source to R.G.B color beam source. In laser display system, color separation is very important. We fabricated below specific component for finite color separation of the Kr-Ar laser source. At 45$^{\circ}$ incidence s-polarized light , it is required that - H/R in blue region R>99%, H/T in green and red region T>90% - H/R in green and red region R>99%, H/T in blue region T>90% - H/R in green region R>99%, H/T in red region T>90% We composed the optical system and realize the full color image.

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Six Color Separation for Reducing Graininess in a Middle Tone Region (중간 계조 영역에서 낟알 무늬 특성을 감소시키기 위한 6색 분리 방법)

  • 손창환;김윤태;조양호;하영호
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.41 no.6
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    • pp.51-59
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    • 2004
  • This paper proposes an improved six-color separation reducing the graininess in a middle tone region based on the standard deviation of the lightness and chrominance in S-CIELAB space. Graininess is regarded as visual perception for the fluctuation of the lightness of the light cyan and cyan or light magenta and magenta. In the conventional methods, the granularity is extremely heuristic and inaccurate due to the use of the visual examination score. Accordingly, this paper proposes a method to calculate the objective granularity for six color separation. First, we use the lightness, redness-greenness, and yellowness-blueness of the S-CIELAB space reflecting the spatial-color sensitivity of the human and normalize the sum of the three standard deviations. Finally, we apply the proposed granularity to the six color separation after assigning the granularity to the lookup table and obtain the result reducing the graininess in a middle tone region.