• 제목/요약/키워드: Color appearance

검색결과 1,113건 처리시간 0.029초

디스플레이 특성화과정에서 감마변화를 이용한 컬러이미지 재현에 관한 연구 (A Study on Reproduction of Color Image using Gamma Variation on Display Colorimetric Characterization)

  • 이성철;조가람;구철회
    • 한국인쇄학회지
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    • 제23권1호
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    • pp.1-11
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    • 2005
  • The propose of this study investigated the reproduction of color image on a CRT monitor, for a range of different values of monitor gamma. We have used the GOG(gain-offset-gamma) model of the behavior of CRT. Color difference have been computed in a color space, based on the CIELAB color appearance model. The 133 patch defined linearly color sample and 24 patch defined printing color target were used, and were subjected to the influence of nine different gamma value. The result shows that netural color is increasing the decrease range of luminance black color than white color. These results concern correct in the context display of color reproduction.

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Screen인쇄법에 의한 Liquid Crystal Display용 Color Filter 제작 (The Manufacture of Color Filter for Liquid Crystal Display by Screen Printing Method)

  • 손세모
    • 한국인쇄학회지
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    • 제13권1호
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    • pp.39-55
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    • 1995
  • There has been an enormous emergence of imaging systems dedicated to hardcopy and softcopy color-appearance comparisons. Pre-press industry use the CRT as a soft proofing device to preview and aid with color corrections and changes before producing the final printed image. Color DTP system is required an accurate image-matching between CRT-image and printed image. In other to develop the color DTP,CRT calibration and CRT color transform to CIE color system are necessary. In this paper, we described a method CRT color transform to CIELab color system using RGB image raw data. Experimental results show that described method is useful valid of color image matching.

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모니터에서 감마변화에 따른 색재현 특성 (Characteristics of Color Reproduction using Gamma Variation on CRT Display)

  • 이성철;차재영;김재해;구철회
    • 한국인쇄학회지
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    • 제23권2호
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    • pp.45-58
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    • 2005
  • The propose of this study investigated the reproduction of color image displayed on a CRT monitor, for a range of different values of monitor gamma. We have used the GOG(gain-offset-gamma) model of the behavior of the CRT. Color difference have been computed in a color space, based on the CIELAB color appearance model. The 133 patch defined linearly color sample and 24 patch defined printing color target were used, and were subjected to the influence of nine different gamma value. The result show that neutral color is increasing the decrease range of luminance black color than white color. These results are of concern in the context of the "correct" display of color reproduction.

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레스토랑의 색채환경계획을 위한 기초적 연구 -식사공간을 중심으로- (A Basic Study for Environmental Color Planning of Restaurant)

  • 홍영란
    • 한국실내디자인학회논문집
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    • 제3호
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    • pp.10-17
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    • 1994
  • Restaurant is a settign for est and social intercousrse fo rpeople in the cities, and is essential to provide its users with pleasant and comfort space. Color is used as a design tool which has most powerful effect to change the nature of a space and atmosphere, As a basic study for desirable environmental color for restaurant, this is studied mainly on the following discussion points. 1) Inportance of environmental color and its role in accordance with space characteristics as restaurant. 2) The psychological effects of color in the clinetes, color conditioning of the dining ares, problem of change in the appearance of color in the selection of materials and color harmony of total environments. 3) Prior to color planning in detail , the nature and characteristics each restaurant contains and their correlation with various locational , physical , social environmental , human variables have been analyzed. And the total atmosphere of the dining area as a place where the clients finally stay has been dealt with various visual , environmental and functional problems of color about fixed elements such as the wall. the floor, the ceiling and semifixed elements such as tables, chairs, etc.

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컬러 매칭에 의한 폴리에스테르 직물의 심색효과 (Application of Deep Black Color on Polyester Fabrics by Color Matching)

  • 최연이;배기서;김용덕;박은희;홍영기
    • 한국염색가공학회지
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    • 제22권1호
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    • pp.28-36
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    • 2010
  • The deep black coloration of polyester fabrics was obtained by the physical properties of color and color mixing system. In this experiment, we have measured the absorbance and the reflectance of various disperse dyes for accomplishing the lowest lightness value and uniform reflectance, and new matching algorithm and computer color matching was made. The matching used both isomeric and metameric matching. The color matching of deep black color represented low lightness. Though actual reflectance of dyed polyester fabrics using these matching results was as high as theoretical one, low lightness value($L^*$) and uniform appearance were achieved.

뉴시니어 여성을 위한 자전거의류의 착용 평가 (The Wearing Evaluation of Bicycle Wear for New Senior Women)

  • 정희경;이정란
    • 한국의류산업학회지
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    • 제19권3호
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    • pp.302-311
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    • 2017
  • The purpose of this study is to develop an aesthetic and functional bicycle wear for new senior women in their 50s and 60s. We developed bicycle wear that is friendly to bicycling posture and reflects the preference of new senior women. Both the expert group and the subject group evaluated the appearance, completeness of clothing and motion functionality. The results are as followed: First, in the evaluation result of the expert group regarding the appearance and completeness of clothing, high scores are given to design, materials, color scheme, the trends suitability as well as the appearance with regard to clothing fitness. Second, in the results of the evaluation of the appearance and movement functionality targeting the subject groups, movement functionality was rated higher than appearance. In the case of the appearance evaluation, adhesion of both jacket and pants was rated very highly, which is considered to come from the elasticity of the material. In the functionality evaluation, what were pointed out as inconvenient details in the prior studies were found to be all improved and the sleeves and armpit parts were rated highly. Therefore, the pattern design and the usage of the materials suggested in this study were found to be very suitable in the movement on the ride of bicycle.

시판차류제품(市販茶類製品)의 Hunter-Lab Tristimulus Colorimeter에 의한 색상(色相) 평가(評價) (Color Evaluation of Commercial Dehydrated Tea-products by Hunter-Lab Tristimulus Colorimeter)

  • 박길동;최진호;성현순
    • 한국식품영양과학회지
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    • 제11권1호
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    • pp.25-30
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    • 1982
  • 시판차류기호식품(市販茶類嗜好食品)의 관능적(官能的) 평가(評價)와 이들 제품(製品)의 품질관리적(品質管理的) 측면(側面)에서 중요시되는 색도(色度)의 지표(指標)를 조사코저 Hunter-lab tristimulus colormeter를 이용(利用)하여 제품(製品)의 입도(粒度), 밀도(密度), 및 탈흡습(脫吸濕)이 색도(色度)에 미치는 영향을 조사하였다. 1. 제품(製品) 사이에는 입도(粒度)의 크기와 색도(色度)에서 특별한 유사성(有意性)이 인정되지 않았으며, 홍삼정분(紅蔘精粉)의 경우 입도(粒度)가 작아질수록 L,a,b 치(値)가 증가하고, X,Y,Z 치(値)에서는 X, Y 치(値)는 증가하는 경향이었으나 Z 치(値)는 일정치 않았다. 2. 시판차류기호식품(市販茶類嗜好食品) L치(値) 범위는 32.8$\sim$48.0이었고 a 치(値)는 3.9$\sim$10.4, b 치(値)는 5.6$\sim$18.0이었으며 대부분의 제품(製品)이 주황색색소계(朱黃色色素系)에 속하는 것으로 나타났다. 3. 제품(製品)의 밀도(密度)는 0.232$\sim$0.898 g/ml의 범위 내에 있었으며 밀도가 클수록 L치(値)가 가하는 경향이었다. 4. 제품별(製品別) a/b치(値)는 생강차를 제외하고 0.61$\sim$0.98의 범위 내에 집중되어 있었으며 총색도(總色度)의 차(差)($\Delta$E) 및 채색도(彩色度)의 차(差)($\Delta$C)가 작은 제품(製品)일수록 색상(色相)의 안정성(安定性)이 인정되었다. 5. 각제품(各製品) 사이에는 흡습(吸濕) 및 탈습(脫濕)에 의한 색상변화(色相變化)는 유의성이 없었다. 6. 광파장(光波長)에 따른 제품별색도(製品別色度)는 생강차, 쌍화차 및 탱이 녹적색계색소(綠赤色系色素)가 가장 높아 녹적색색소계(綠赤色色素系)인 반면 다른 차류제품(茶類製品)은 X,Y,Z 치(値)가 거의 비슷한 경향을 나타냈다.

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Development and Color Evaluation of Working Clothes Designs for Integrated Environment Color Planning in Machinery Industry Sites

  • Park, Hye-Won
    • 패션비즈니스
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    • 제14권6호
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    • pp.53-69
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    • 2010
  • This study compared the work environment colors and the colors of working clothes by conducting a field survey of domestic machinery manufacturers who are playing a central role in Korean industries so as to develop and evaluate working clothes based on the safety of workers and environmental harmony. For the study method, after the color-related requirements were collected through interviews and field surveys, the fabrics for working clothes were woven and the colors were selected using the requirements. The designs of working clothes were developed with an emphasis on color design. The colors of the working clothes were also analyzed in their relationship to the working environment. The evaluations were separately performed for the appearance and the colors with workers of D machinery manufacturing company. The appearance and color satisfaction, safety, psychology, and harmony with environment were evaluated on a 5-point scale by workers and their safety managers. Furthermore, pictures of the workers in their existing working clothes and the newly developed working clothes were taken with a digital camera while they were working in the field. The RGB values of the pictures were extracted using Photoshop ver. 7.01, which were converted to HVC values using Munsell Conversion ver. 4.0.1. This study found that higher satisfaction levels were shown for the newly developed working clothes compared to the existing ones. The actual measurements also showed that the newly developed had higher brightness and clearer chromatic contrast than the existing ones, indicating higher explicitness and attention for safety of workers. These types of studies can contribute to the integrated working environment plan of machinery manufacturers.

색각 이상 사용자를 위한 MPEG-21 디지털 아이템 적응 변환

  • 양승지;송재일;노용만;남제호;홍진우
    • 정보통신설비학회논문지
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    • 제1권2호
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    • pp.50-57
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    • 2002
  • This paper has been studied the adaptation technique for color vision variations in the MPEG-21 Digital Item Adaptation (DIA). As color is more widely used to carry visual information in the multimedia content, ability to perceive color plays a crucial role in getting visual information. DIA is performed respectively for severe color vision deficiency (dichromats) and for mild color vision deficiency (anomalous trichromats), according to the description of user characteristics about color vision variations. Adapted images are tested by simulation program for color vision variations so as to recognize the appearance of the adapted images in the color deficient vision. Experimental result shows that proposed adaptation technique works well in the MPEG-21 framework.

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