• 패션비즈니스
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• 제12권5호
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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.

• 한국의상디자인학회지
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• 제16권2호
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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.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 신호처리소사이어티 추계학술대회 논문집
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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.

• Journal of the Optical Society of Korea
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• 제17권6호
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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.

• Journal of the Optical Society of Korea
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• 제20권1호
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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.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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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.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1999년도 추계종합학술대회 논문집
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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.

• Journal of the Optical Society of Korea
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• 제15권3호
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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.

• 한국광학회지
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• 제8권3호
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• pp.183-188
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• 1997

색분리 필터는 하나의 파장영역에서는 고반사, 다른 파장영역에서는 고투과를 제공하는 광학소자이다. 레이저를 이용한 디스플레이장치의 광학계를 구성하기 위해서는 정확한 색상의 분리가 요구되며, 광학계 효율 측면에서 매우 중요하다. 본 연구에서는 Kr-Ar laser(혼합 gas)빔을 R.G.B 삼색으로 분리하여 화상을 구현하기 위한 미러와 필터를 아래와 같은 특성을 만족하도록 설계 및 제작하였고, 그 특성은 45.deg./S-편광된 빔을 입사시켜서 1) R(반사율)>99% 450~493 nm, T(투과율)>90% 509~685 nm 2) R(반사율)>99% 509~685 nm, T(투과율)>90% 450~493 nm 3) R(반사율)>99% 509-585 nm, T(투과율)>90% 600~683 nm를 각각 만족하는 소자로 색분리를 실현하여 레이저 프로젝션 시스템을 구성하는데 사용하였다.

• 대한전자공학회논문지SP
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• 제41권6호
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• pp.51-59
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• 2004

본 논문에서는 4색 잉크에서 6색 잉크로 분리하기 위해 중간 계조 영역에서 낟알 무늬 특성을 감소하기 위한 객관적인 낟알 무늬 값을 계산하는 방법을 제안한다. 낟알 무늬 특성은 light cyan과 cyan, 그리고 light magenta와 magenta가 섞여서 출력되는 중간계조 영역에서 cyan 및 magenta 패턴이 상대적으로 눈에 띄게 되는 현상을 의미한다. 이러한 출력 영상의 낟알 무늬 특성을 향상시키기 위해, 낟알 무늬 특성을 수치적인 값으로 계산하고 이를 6색 분리 과정에 적용하는 방법을 제안하였다. 낟알 무늬 특성은 인간 시각의 공간 칼라 민감도를 반영하는 S-CIELAB 공간 좌표계를 사용하여, 밝기와 색도의 표준편차를 구하고 정규화 과정을 통해서 결정한다. 객관적인 낟알 무늬 특성을 중간 계조 영역의 색 분리 과정에 적용함으로써, 좀 더 부드럽고 낟알 무늬가 줄어드는 향상된 결과가 나타났다.