• Title/Summary/Keyword: Effect of Color

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The Image Evaluation of Clothing Color of Korean and American College Students (한국과 미국대학생의 의복색 이미지 평가)

  • Lee Myoung-Hee;Hong Sun-Ok
    • Journal of the Korea Fashion and Costume Design Association
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    • v.6 no.3
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    • pp.55-66
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    • 2004
  • The objectives of this study were to examine how image evaluation and preference of women's clothing color vary according to perceiver's culture, gender, and clothing color; to investigate the differences of image evaluation according to body type and the clothing color; and to disclose what image affects to the clothing color preference of Korean and American. Subjects were 388 Korean and 363 American college men and women. The American evaluated the wearer more elegant, feminine, and neater than the Korean did. Clothing color gave significant influence on perception of all image variables. Koreans showed that red and blue color shirts were perceived to be individualistic. Koreans considered blue, indigo, purple, gray, and black were perceived to be less feminine. This means that they evaluated the colors of blue range and low chroma were masculine according to their traditional attitude. Women were more attracted by indigo and purple, while men tended to evaluate yellow as an appealing color. The evaluation of sociability varied depending on the perceiver's culture and clothing colors. The corpulent body type had negative evaluation rather than the ordinary one without the relation with the color of clothing for Koreans and Americans. The evaluation of sociability of Americans had an interaction effect by the body type and clothing color. Attractiveness gave the first significant influences on clothing color preference, and the next came individual(-) and splendid image for Korean men. The individual image gave Korean men to be negative effect. Attractiveness, elegance, and sociable image gave significant influences on clothing color preference in Korean women. For American men, elegance gave the first significant influences on clothing color preference, and the next came sociability and neatness, while elegance was the first and the next came sociability and attractiveness for American women.

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The Effects of Glass Color Tone by Oxidation Power Index (발화력지수(醱化力指數)가 유리색조(色調)에 미치는 영향(影響))

  • Park, Eun-Seong;Park, Byeong-Gi
    • Journal of Korean Society for Quality Management
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    • v.16 no.1
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    • pp.1-7
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    • 1988
  • The most important element upon the quality of family glass products is the color of glass, which is the first object of consumers concern in purchasing. Therefore, colorless and transparent color tone can level up the additional value of the products. But we have produced the glass products in a large quantity by using the automatic tank brazier, chronic problem has been left over the color tone. By compounding and analizing the management techniques applied by peculiar technique and design of experiments pertinently, and by adjusting the decoloring composition ratio, we can contribute to improvement of color tone as well as to the cost reduction by diminishing the unnecessary decoloring agent. Intangible effect was the securing the superiority of quality home and abroad with the improvement of color tone and was taking a triangular position the factors influencing the glass decoloring which had been an unexhausted field. Tangible effect was the reduction of decoloring cost by diminishing the unnecessary oxidant. We registered the optimal composition ratio condition which was searched by applicating the design of experiments. To maintain good color tone, we manage the degree of purity, the most important thing among the items of color tone, continuously by control chart and it has maintained steady state now.

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Particle Size, Morphology and Color Characteristics of C.I. Pigment Red 57:1 : 2. Effect of Salt Milling Process

  • Seo, Hee Sung;Lee, Hyun Kyung;Yoo, Eui Sang
    • Textile Coloration and Finishing
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    • v.27 no.4
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    • pp.245-260
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    • 2015
  • The effect of salt milling process on the crystal size, morphology, and color characteristics of C.I. Pigment Red 57:1 was studied. The primitive morphology and color properties of the pigment after synthesis were studied in the former series work. The size and morphology of primary particles and the second aggregation features should be considered because they are very important to determine pigment quality. We compared the primary morphology of pigment particles before drying with the secondary aggregated morphology of pigment particles after drying and salt milling process. Morphological properties were investigated by particle size analysis, X-ray diffraction, and scanning electron microscopy and color measurement was carried out. Significant reduction in particle size as well as enhanced crystallite size after salt milling process was observed. This result might give a difference in color of the pigment, turning into brighter and more blue-toned red color. It was revealed that synthesis condition affect the morphology and color of the pigment even after milling. Increase in HCl concentration in the synthesis process enhanced crystal size and quality forming bluer-red pigments but an increase in $CaCl_2$ concentration resulted in more amorphous crystals forming darker-red pigments after salt milling.

Natural Scavengers of Reactive Oxygen Species in Rumex crispus as natural colorant

  • Suh, Hwa-Jin;Ahn, In-Yong;Song, Eun-Young;Na, Seon-Young;Park, Jin-Woo;Park, Ji-Ju;Kwon, Oh-Oun
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2011.11a
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    • pp.41-41
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    • 2011
  • The aims of this study were to examine the efficacy of phytochemicals of Rumex crispus as anti-oxidant and anti-browning agent. The bioactive properties of Rumex crispus as natural colorants were studied by total phenolic contents, DPPH radical scavenging, ABTS radical scavenging,lipid peroxidation, cell viability, singlet oxygen quenching and photoprotection effect. Among all of the results ($IC_{50}$: the concentration of various extracts required to exert 50% reducing effect), the higher activity of the extract was found in the ethyl acetate and butanol extracts. Anti-browning activity was evaluated by monitoring the change $L^*$, $a^*$, $b^*$ values and total color differences(${\Delta}E$). It was found that ethyl acetate and butanol extracts effectively inhibited browning in apple juice at a concentration below 0.3 mg/ml. Rumex crispus extracts used natural colorants could be of good resources as anti-oxidant and anti-browning agents. The results suggest that our study may contribute to the development of natural and functional materials with potential application to reduce oxidative damage.

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New Generation Color Filter Technology in TFT-LCD

  • Koo, Horng Show
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.408-411
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    • 2004
  • Color filter is a fundamental and necessary component to make a full-color TFT-LCD, its quality intensively influence the performance of TFT-LCD in the application of Notebook Computer, Monitor and Television. Color filter in chromaticity also make an effect for human visual system and video enjoyment. Recently, mother glass size is enlarged for demand of large-size panels and new generation color .filter technology for large-size liquid crystal cell panels is also developed. Here, latest generation color filter technology in TFT-LCD will be discussed.

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Color Code Detection and Recognition Using Image Segmentation Based on k-Means Clustering Algorithm (k-평균 클러스터링 알고리즘 기반의 영상 분할을 이용한 칼라코드 검출 및 인식)

  • Kim, Tae-Woo;Yoo, Hyeon-Joong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.7 no.6
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    • pp.1100-1105
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    • 2006
  • Severe distortions of colors in the obtained images have made it difficult for color codes to expand their applications. To reduce the effect of color distortions on reading colors, it will be more desirable to statistically process as many pixels in the individual color region as possible, than relying on some regularly sampled pixels. This process may require segmentation, which usually requires edge detection. However, edges in color codes can be disconnected due tovarious distortions such as zipper effect and reflection, to name a few, making segmentation incomplete. Edge linking is also a difficult process. In this paper, a more efficient approach to reducing the effect of color distortions on reading colors, one that excludes precise edge detection for segmentation, was obtained by employing the k-means clustering algorithm. And, in detecting color codes, the properties of both six safe colors and grays were utilized. Experiments were conducted on 144, 4M-pixel, outdoor images. The proposed method resulted in a color-code detection rate of 100% fur the test images, and an average color-reading accuracy of over 99% for the detected codes, while the highest accuracy that could be achieved with an approach employing Canny edge detection was 91.28%.

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EFFECT OF SECOND GENERATION POPULATIONS ON THE INTEGRATED COLOR OF METAL-RICH GLOBULAR CLUSTERS IN EARLY-TYPE GALAXIES

  • Chung, Chul;Lee, Sang-Yoon;Yoon, Suk-Jin;Lee, Young-Wook
    • The Bulletin of The Korean Astronomical Society
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    • v.38 no.1
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    • pp.30.2-30.2
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    • 2013
  • The mean color of globular cluster (GCs) systems in early-type galaxies (ETGs) is, in general, bluer than the integrated color of field stars in their host galaxies. Recently, Goudfrooij & Kruijssen (2013) reported that even red GCs in the ETGs show bluer colors than their host field stars and suggested the different initial mass function (IMF) for red GCs and field stars to explain the observed offset in color. Here we suggest an alternative scenario that explains the observed color offsets between red GCs in ETGs and the field stars in the parent galaxies without invoking to the variation of the IMF. We find that the inclusion of second-generation (SG) helium-enhanced populations in the model fully explains the observed color offset between red GCs and field stars in the host galaxies. We have also tested the effect of the IMF slope on our models, but the effect is relatively small compared to the effect of the SG population. Our new model suggests that, in order to explain far-UV strong metal-rich GCs in M87 and the observed color offset between metal-rich GCs and the field stars in ETGs simultaneously, the inclusion of the SG populations with enhanced helium abundance is a more natural solution than the model that only adopted variations in the IMF.

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Color Image Quantization and Dithering Method based on HVS Characteristics

  • Ha, Yeong-Ho
    • Proceedings of the IEEK Conference
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    • 1999.06a
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    • pp.569-574
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    • 1999
  • New methods for both color palette design and dithering based on human visual system (HVS) characteristics are proposed. Color quantization for palette design uses the relative visual sensitivity and spatial masking effect of HVS. The dithering operation for printing uses nonlinear quantization, which considers the overlapping phenomena among neighbor printing dots, and then a modified dot-diffusion algorithm is followed to compensate the degradation produced in the quantization process. The proposed techniques can produce high quality image in the low-bit color devices.

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Increase in Color Depth and Analysis of the Interfacial Electrokinetic Potential of Poly(Ethylene Terephthalate) Fabric by Plasma Treatment (폴리에스테르 직물의 저온플라즈마 처리에 따른 계면동전위와 심색성 향상에 관한 연구)

  • Jeon, Sang-Min;Lee, Ki-Poong;Gu, Kang
    • Textile Coloration and Finishing
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    • v.15 no.4
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    • pp.1-7
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    • 2003
  • We investigated the effect of color depth on polyester fabrics by plasma treatment. In this study, although it have many paper about effects of plasma treatment, we observed interfacial electrokinetic potential of polyester fabrics by plasma treatment and also we investigated relationship between deep coloring agent and plasma treatment to get the effect of color depth on polyester fabrics. The results obtained are as follows, 1. Plasma treatment did not enhanced the effect of color depth of polyester fabrics by plasma treatment independently. 2. In the case of using the deep coloring agent with plasma treatment on polyester fabrics, lightness was more decreased than using the deep coloring agent itself. 3. Plasma treatment could not affect surface shape and tensile strength of treated polyester fabrics.

Principles in Theo Van Doesburg's architectural concept -The relation between space and color- (Theo Van Doesburg의 건축 구상 원리 -공간과 색채와의 관계-)

  • Shin, Moon-Ki
    • Journal of architectural history
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    • v.6 no.3 s.13
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    • pp.155-166
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    • 1997
  • This study aimes to understand the principles in Theo Van Doesburg's architectural concept. Generally, Theo Van Doesburg has been thought that he betrayed De Stijl by acting contrary to the Neo-Plasticism which was constituted in early De Stijl by Mondrian and himself and by suggesting opposite one, Elementarism. Therefore this study tried to understand the principles that make his architectural concept, confirming the background of Elementarism. After studing relation, which Theo Van Doesburg has used, between space and color, it is concluded that he has unchanged principles of architectural concept from early De Stijl to last, opposite to general appreciation. So, Theo Van Doesburg acted to maintain equilibrium that exists for balancing the two elemental forces which contrast each other in relation between space and color. The equilibrium which he looked for aims to constitute harmonized dynamic space by dynamic rythem of equilibrium instead of Neo-Plastic effect. And using color, which used to be producing dynamic effect, he intended to maintain static effect for making dynamic rythem of equllibrium by the principles he made.

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