• Title/Summary/Keyword: Color paper

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The Optimization of Offset Printing Process for High Quality Color Reproduction (1) - Prepress and proofing - (고품질 색재현을 위한 오프셋 인쇄공정의 최적화에 관한 연구(I) - 프리프레스와 교정인쇄를 중심으로 -)

  • Kim, Sung-Su;Kang, Sang-Hoon
    • Journal of the Korean Graphic Arts Communication Society
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    • v.25 no.2
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    • pp.15-28
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    • 2007
  • For the color offset printing, it starts with input of data. The past days, drum scanner or flat scanner used to input of data, but now it changes gradually into using of digital camera because digital camera become popular. The high quality digital camera saves as a data(RAW format), sRGB which have built in digital camera, or Adobe RGB format. sRGB of ICC(International Color Consortium) profile is a standard color gamut of digital camera. Distribution of color gamut in sRGB is less than Adobe RGB have a distribution in ICC profile. sRGB also can not be expressed in some specific part, because distribution of color gamut in sRGB is not able to cover all parts in ICC Profile of international standards CMYK. It is more popular to use Adobe RGB than sRGB to do high quality offset printing and software basis color setting in Europe and Japan. In spite of this data basis, there is a difficulty of doing color correction between the color proofing prints and the final prints. To see how the software color setting effects to RGB data, this thesis will use Gretag Macbeth ColorChecker 24 patch which has the most general natural color chart to compare sRGB and Adobe RGB to check the differences of color changes. It will use the several factors that came out from the process of making ICC Profile to figure out the optimum In-house profile. It also compares the differences of using matt paper and glossy paper to do best quality color proof offset printing, and how the Rendering Intent effects the proof print.

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A Study on the Color Harmony Scheme of the Bathroom Based On Digital Color Image Processing (디지털 이미지 색채분석을 이용한 욕실공간 색채배색에 관한 연구)

  • 정현원;이현수
    • Korean Institute of Interior Design Journal
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    • no.38
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    • pp.217-224
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    • 2003
  • The purpose of this study is to analyze the recent trend color of bathroom based on analysis result of digital color image processing, to analyze the emotional color of that, and to suggest the harmony color combination for the bathroom. It leads to the two final results. That is, the main color of bathroom image is recognized as three color classifications such as YR-Y, Y-GY, PB-P, 2) from the point of emotional aspect, the trend color of the bathroom can be classified into four image categories: 'modern', 'mild', 'elegant', 'natural'. Finally, under these categories, this paper propose 12 color harmony schema which can be applied to color in, especially bathroom Interior design.

A Color Coordination Support System based on Color Image

  • Lee Ji-Hyun;Qian Wei
    • Archives of design research
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    • v.19 no.3 s.65
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    • pp.155-166
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    • 2006
  • Color selection plays a vitally important role in creating impressions of individuals or companies. This is largely because colors have sensibility aspects, which relate, in part, to images and, in part, to associations. Based on theories of color harmony and sensibility ergonomics, we have developed quantitative and systematic metrics for color images. In this paper, we suggest a color coordinate system that supports color analysis and color harmony functions using color images, which can be captured by corresponding adjectival words. We focus on a prototype system for graphical logo design to exemplify our concepts. The system can be applied to a wide variety of design domains.

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Color gamut mapping using fictive 3-D CIELAB equidistance sample (가상의 3차원 CIELAB 등거리 색표본을 이용한 색역사상)

  • 곽한봉;오현수;이철희;서봉우;안석출
    • Proceedings of the Korean Printing Society Conference
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    • 2000.12a
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    • pp.0.3-0
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    • 2000
  • Gamut mapping is a technique that acts on cross-media reproduction to transform a color between devices for the purpose of enhancing the appearance or preserving the appearance of an image. Gamut mapping essentially produces color conversion error which depends the gamut mapping method, source and destination devices, and sample points for gamut modeling. For color space conversion between monitor colors and printer colors, empirical representation using sample measurements is currently widely utilized. Color samples are uniformly selected in the device space such as CMY or RGB, represented as color patches, and then measured. However, in the case of printer, these color samples are not evenly distributed inside the printer gamut and the color conversion error is increased. Accordingly, this paper introduces a equally distributed color sampling method in CIELAB space, a device-independent color space, to reduce color conversion error, and the performance is analyzed via color space conversion experiments using tetrahedral interpolation.

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The Color of The Car Accident-prone (사고나기 쉬운 자동차의 색)

  • Jang, Dai-Hyun;Shin, Seong-Yoon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2011.05a
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    • pp.619-620
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    • 2011
  • When we choose a car, must first choose the performance, design, price, reliability, ete. of the car regardless of the probability of occurrence of traffic accidents. This paper proposes the color of car that accident occurs in color from the highest probability to lowest probability. This is talking about the color difference of advancing color and receding color. The color of the accident-prone is many receding color that actually seem to be far more. Advanced color that seem to be closer than the actual color find out that accident is less.

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Multiprimary displays for natural color reproduction

  • Yamaguchi, Masahiro
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.999-1004
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    • 2002
  • This paper presents the color displays using more than three primary colors, for the reproduction of wider color gamut, and high-fidelity color reproduction. First, Natural Vision system, which is currently under development for the natural color reproduction in visual telecommunication applications, is introduced, The natural vision is based on spectrum instead of trichromatic color space, and enables high-fidelity color reproduction using multispectral and multiprimary technologies. Then, sixprimary color projection displays using LCD and DLP, and a four-primary color flat panel display are shown. It is experimentally demonstrated that the color gamut becomes much larger than conventional RGB-based display. In addition, it is proved that the spectral color reproduction using multiprimary display suppresses the influence of observer metamerism, and as a result, the color matching between the display and the real object is well improved.

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Improved k-means Color Quantization based on Octree

  • Park, Hyun Jun;Kim, Kwang Baek
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.12
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    • pp.9-14
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    • 2015
  • In this paper, we present an color quantization method by complementing the disadvantage of K-means color quantization that is one of the well-known color quantization. We named the proposed method "octree-means" color quantization. K-means color quantization does not use all of the clusters because it initializes the centroid of clusters with random value. The proposed method complements this disadvantage by using the octree color quantization which is fast and uses the distribution of colors in image. We compare the proposed method to six well-known color quantization methods on ten test images to evaluate the performance. The experimental results show 68.29 percent of mean square error(MSE) and processing time increased by 14.34 percent compared with K-means color quantization. Therefore, the proposed method improved the K-means color quantization and perform an effective color quantization.

Color Pattern Recognition with Recombined Single Input Channel Joint Transform Correlator

  • Jeong, Man-Ho
    • Journal of the Optical Society of Korea
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    • v.15 no.2
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    • pp.140-145
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    • 2011
  • Joint transform correlator (JTC) is a well known tool for color pattern recognition for a color image. Color images have red, green and blue components, thus in conventional JTC, three input channels of these color components are necessary for color pattern recognition. This paper proposes a new technique of color pattern recognition by decomposing the color image into three color components and recombining those components into a single gray image in the input plane. This new technique needs single input channel and single output CCD camera, thus a simple JTC can be used. We present various kinds of simulated results to show that our newly proposed technique can accurately recognize and discriminate color differences.

A Study of Status Analysis on the Color-Scape about National Harbor Gangneung-Anmock and Coastal Street (국가어항 강릉 안목항과 해안가로의 경관색채 현황분석 연구)

  • Cho, Won-Seok;Kim, Heung-Gee;Kim, Yong-Ki
    • Journal of the Korean Institute of Rural Architecture
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    • v.10 no.1
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    • pp.59-66
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    • 2008
  • This paper analyzed the color of harbor and fishing village for the better landscape. Accordingly the aim of this study is to find out the color-scape in harbor, such as regional color and present status are to analyze with elements of design. In beginning point of development, it is to take practicable data about color planning for marine tourism. Regarding the utility of these characteristics, hue, value, chroma can be checked and design of color-scape may be possible to work out future harbor environments. This study suggests that harbor of contemporary is to be environmental harmony and regional color control. The result of this research, it is carried out that the color-scape is checked by partnership of experts, official and regional person with "agreement of landscape" to provide reasonable criteria in color surroundings. An analysis of regional color-scape is expected to use for landscape improvement of fishing village and harbor.

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A Study on the Digital Space Color by Application Color System in New Media Environment (뉴미디어 환경의 색채시스템을 적용한 디지털 공간색채 연구)

  • Kim, Sun-Young
    • Korean Institute of Interior Design Journal
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    • v.20 no.6
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    • pp.236-243
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    • 2011
  • The digital space color of new media environment denied not only the deterministic relationship of designed color and circumjacent color but also the deduced an special elements of digital space color. Such phenomena historical perspective of Gernot Wersig, new media principle of Lev Manovich and remediation of Bolter, J.K & Grusin, R. are expressed in various new media environment across. In particular, development of digital technology is moving away from its previous space color based on scientific, statistical and quantitative perspective by using diverse variables. The following research focuses on the fundamental concept of space color by type, composition of digital space color. The paper reflects on the meaning and concept of contemporary which enables the application of digital space color system on space through advanced technology. The principle of digital space color such as multidimensional malerisch, discontinuous video, vague original and copy, irregular repetitiveness of 'copy of copy', selective color of observer, experiential color of observer, and etc. makes it possible to extract the expressed element and method of digital space color. Meanwhile, the features of digital space color such as divided field of form, non-systematized of process and collage of communication can be inferred from case analysis.