• Title/Summary/Keyword: Same Color

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A Novel Color Conversion Method for Color Vision Deficiency using Color Segmentation (색각 이상자들을 위한 컬러 영역 분할 기반 색 변환 기법)

  • Han, Dong-Il;Park, Jin-San;Choi, Jong-Ho
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.48 no.5
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    • pp.37-44
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    • 2011
  • This paper proposes a confusion-line separating algorithm in a CIE Lab color space using color segmentation for protanopia and deuteranopia. Images are segmented into regions by grouping adjacent pixels with similar color information using the hue components of the images. To this end, the region growing method and the seed points used in this method are the pixels that correspond to peak points in hue histograms that went through a low pass filter. In order to establish a color vision deficiency (CVD) confusion line map, we established 512 virtual boxes in an RGB 3-D space so that boxes existing on the same confusion line can be easily identified. After that, we checked if segmented regions existed on the same confusion line and then performed color adjustment in an CIE Lab color space so that all adjacent regions exist on different confusion lines in order to provide the best color identification effect to people with CVDs.

A Study on Color Planning of Elementary, Middle and High School Buildings -A Case Study of Domestic and Foreign School Buildings- (초(初).중등학교(中等學校) 건축(建築)의 색채계획(色彩計劃) 분석(分析) 연구(硏究) -국내.외 학교건축의 사례 중심으로-)

  • Kim, In-Hyeog;Kang, Byoung-Keun
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.10 no.1
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    • pp.74-87
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    • 2011
  • The purpose of this study is in providing a systematic method for school building color scheme. This study analyzed the cases of color uses in domestic and foreign school buildings. The results from this study tells that the colors in school buildings should take into account the environmental, psychological and functional elements at the same time to effectively function as environmental color, effect color and induction color.

Modeling for Hue Shift Effect of Human Visual System on High Luminance Display (고휘도 디스플레이에서의 인간 시각에 따른 색상 이동 현상과 모델링)

  • Lee, Tae-Hyoung;Lee, Myong-Young;Park, Kee-Hyon;Ha, Yeong-Ho
    • Proceedings of the IEEK Conference
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    • 2006.06a
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    • pp.307-308
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    • 2006
  • In recent, displays have very good properties at high luminance, fast response, and size. Also They have good quality in terms of color according to the development of the gamut extension and color reproduction. However, despite these merits, there is a characteristic that at a high luminance display, observer perceive the different color from the originally re-producted color due to the change of perceived luminance in human visual system. In this paper, we propose a model that is the hue shift phenomenon between a normal display and a high luminance display, and then an algorithm which compensate the color between two devices, so that observer can perceive the same color.

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Comparative Experimental Study on Color Meter for Monitor Color Correction (모니터 색상 보정을 위한 색측기 비교 실험에 관한 연구)

  • Han, Byung-Jo;Koo, Kyung-Wan
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.59 no.4
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    • pp.444-449
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    • 2010
  • The PID control to the monitor color correction was applied. Converted Gamma LUT was applied to the video card. Color and brightness information from the PID controller was used as control inputs. Color and brightness information from a calibrated monitor is measured again. Then, the difference between the preset values for the PID controller was compensated by the feedback. The software measured by color meter was used for color and brightness information. All of the monitor does not measure the color and brightness was measured by sampling. The color and brightness from the monitor were measured not by complete enumeration but by sampling. In the experiment, the original image was displayed on the same monitor as well as two other brands, and then, Gamma and Contrast were measured and compared.

A Detection Algorithm of Dead Stone for the Go program based on the Grouping (그룹핑에 기반한 바둑 프로그램에서의 사석검출 알고리즘)

  • Kim, Dong-June;Kim, Yun-Ho
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2010.10a
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    • pp.567-570
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    • 2010
  • In this paper, A Detection Algorithm of Dead Stone for the Go program based on the Grouping is proposed. The group of the same color as the stone is connected to the left, right, up and down side in the same group is defined to be grouping. A Detection Algorithm of Dead Stone based on these groups to remove stone and all the stones of the same color as the stones of the same group, regardless of the Case for TILT blocked, if satisfied that the detection of the group is treated as a dead stone.

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Color Reproduction Simulator Using Standard Display (표준 디스플레이를 이용한 발색 시뮬레이터)

  • Park, Gyun-Deuk
    • Proceedings of the IEEK Conference
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    • 2005.11a
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    • pp.419-422
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    • 2005
  • In this paper, a display color characteristic simulation algorithm is proposed for nonstandard display units under development. In this algorithm, signal transformation matrix is calculated from the transfer characteristic of a nonstandard display unit to reproduce the same color of the one on a standard CRT display. Proposed algorithm can be used for the simulation of various color reproduction characteristics and the performance improvement of the nonstandard display.

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Logic/Arithmetic Operation Using Color Light Encoding and Pre-operation Post-carry Processing Methods (색광 부호화와 전연산 후캐리 처리를 이용한 논리 및 산술연산)

  • 황상현;배장근;김성용;김수중
    • Proceedings of the Korean Institute of Communication Sciences Conference
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    • 1991.10a
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    • pp.86-91
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    • 1991
  • A capability of performing the optical logic and arithmetic operations is followed by an effective encoding technique. In this paper, we proposed the color light encoding technique. By using this encoding technique, the space bandwidth product(SBP) is minimized in the output plane. In addition, we proposed the pre-operation pro-carry processing method that performs faster than the same time operation and carry processing method in optical computing. We proposed that the color liquid crystal device(CLCD) is used as the encoded color light input source.

Color Image Quantization Using Local Region Block in RGB Space (RGB 공간상의 국부 영역 블럭을 이용한 칼라 영상 양자화)

  • 박양우;이응주;김기석;정인갑;하영호
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 1995.06a
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    • pp.83-86
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    • 1995
  • Many image display devices allow only a limited number of colors to be simultaneously displayed. In displaying of natural color image using color palette, it is necessary to construct an optimal color palette and map each pixel of the original image to a color palette with fast. In this paper, we proposed the clustering algorithm using local region block centered one color cluster in the prequantized 3-D histogram. Cluster pairs which have the least distortion error are merged by considering distortion measure. The clustering process is continued until to obtain the desired number of colors. Same as the clustering process, original color image is mapped to palette color via a local region block centering around prequantized original color value. The proposed algorithm incorporated with a spatial activity weighting value which is smoothing region. The method produces high quality display images and considerably reduces computation time.

Comparison of innerwear color preference among the Korea, China and Hong Kong (한국, 중국과 홍콩 성인여성의 속옷 선호색상 비교 연구)

  • Cha, Sujoung
    • Journal of Fashion Business
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    • v.16 no.5
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    • pp.106-113
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    • 2012
  • This study intend to research color preferences about innerwear(specially brassiere) and draw a comparison of color preference's differences among the Korea, China and Hong Kong. The subjects of study are female students of universities in Korea, China and Hong Kong. The data analysis was done with the statistical treatment in SPSS 14.0, and the results are as follows. Female students of universities in Korea, China and Hong Kong are distinguished from wearing color and preference color of innerwear. Korea and China female students prefer skin color to the other color but most of Hong Kong female students prefer black color. In case of red color, Korea female students don't select a red color as a preference color but even if some students select a red color, China and Hong Kong females prefer a red color. The traditional color opinions of Korea, China and Hong Kong are the same as a Yin-Yang School. But these days they have different color opinions because of cultural, political and ideological elements. Korea females like skin and white colors because these colors don't appear on the outwear surface. Korean have an inclination toward conservatism and use the color according to ideological and deceptive orders of the Confucianism. Hong Kong have a different color preference from China because they have chances of receiving the other cultures for example United Kingdom, Japan and so on.

A chroma-hermeneutical Study on the Space-constituitive Dimension of Color (색의 공간 구성적 차원에 관한 색채해석학적 연구)

  • 이란표
    • Korean Institute of Interior Design Journal
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    • v.13 no.5
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    • pp.181-189
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    • 2004
  • This study consists of two parts, in which the traditional discourses about light and color are analysed hermeneutically, The first part deals with the optical and chromatic discourse that stands in the same context with the aesthetic, and the second with the analysis of color phenomenon that is constituitive of space. From the ancient time the basic parameters of the conceptual thinking such as the virtual, simulacrum, have sticked to the inevitable status, which mediates to represent the original that can never present by oneself. In modern times this specificity of the virtual could have been connected with the problem, how and by which means objects can be perceived and grasped in itself. Among the barometers to the problem ‘color’ or ‘color perception’ has been regarded as the distinct one, in which the relationship between the image and the identifying of this one, the relationship between the perceived image and the perceiving subject and the problem of the spatiality of color and surface can be dwelled on. Through the explication of the chromatic and aesthetic discourse it can be recognized that color, surface and space are interacted with one another. Colors on the surface are not only the dynamic interpoints between the memory and the forgetfulness, but also the virtual interfaces, in which the spatialising actions happen incessantly. At this point it can be illuminated that the space-constituitive dimension of color is correlative with the dimension of chromatic effects of spatialising. Therefore color as well as surface as the spatial happening must be apprehended as the one, which constitutes the spatialising and at the same time varies and shifts itself into another on the purpose of the other spatialising.