• 복식문화연구
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• 제11권2호
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• pp.231-242
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• 2003

This study was aimed at analyzing how the dualism of hippie style in the modern retro-fashion, namely, the neo hippie style and the hippie chic style were expressed. For this study, domestic & foreign fashion magazines, preceding theses, literatures, an encyclopedia, and Internet sites were reviewed. The results of this study could be summarized as follows; 1. Silhouette : The neo hippie style was expressed in slim and long silhouette to show the natural beauty. The hippie chic style was expressed in various silhouettes depending on designer's tastes. 2. Color : The neo hippie style was expressed in strong color and analogous color coordination to show richness of human nature. The hippie chic style was expressed in psychedelic color, multi-color, and fluorescent color to show an unconventional and a future oriented idea. 3. Material . The neo hippie style used such soft, thin, and flexible materials as chiffon, satin, silk, knit, etc. to show the natural beauty The hippie chic style used expensive and luxurious materials, high-technological materials, harmony of different materials, etc. 4. Pattern . In the neo hippie style, it was generally used various patterns including plant, animal, insect. In the hippie chic style, it was widely used the natural pattern as well as the ethnic pattern. The neo hippie style was characterized by the natural beauty, purity, elegance as style symbolizing the social problem, on the other hand, the hippie chic style was characterized by designer's identity suggesting an idea of new style rather than a symbol of the social problem.

• 한국정보전자통신기술학회논문지
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• 제7권1호
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• pp.55-60
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• 2014

본 논문에서는 자연 영상에서 피부색 색상과 채도를 기초로 얼굴영역을 추출하고 얼굴의 특징요소를 추출하는 방법을 제안하였다. 제안한 알고리즘은 조명보정과 얼굴 검출 과정으로 구성되었다. 조명 보정 과정에서는 조명변화에 대한 보정기능을 수행한다. 얼굴 검출 과정은 20개의 피부색 표본 영상에서 색상과 채도를 특징벡터로 사용, 입력영상과의 유클리디안 거리를 구하여 피부색 영역을 추출하였다. 추출된 얼굴 후보영역을 CMY칼라 모델에서 C요소로 눈을 검출하였고, YIQ 칼라 공간에서 Q요소로 입을 검출하였다. 추출된 얼굴 후보영역에서 일반적인 얼굴에 대한 지식을 기반으로 얼굴 영역을 검출하였다. 입력받은 10장의 자연 영상으로 실험한 결과 100%의 얼굴 검출율을 보였다.

• 감성과학
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• 제21권1호
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• pp.143-154
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• 2018

본 연구는 친환경적이고 감성적인 패션상품의 색채기획을 위한 자료를 제공하고자 수행되었다. 쪽과 괴화로 복합염색 후 무매염 견직물과 4종의 매염제(Al, Cu, Fe, Zn)를 처리한 견직물에 대하여 색채특성을 측정하였다. 또한 복합염색 후 매염처리된 연두색 견직물에 대하여 여대생을 대상으로 색채감성과 색채 선호도를 조사하였으며, 색채특성과 색채감성이 색채 선호도에 미치는 영향을 분석하였다. 쪽/괴화로 복합염색된(무매염) 견직물은 선 염색한 쪽 농도가 $10g/{\ell}$이면 녹색, 쪽 $20g/{\ell}$을 사용하면 청록색을 나타내었으며, 4종의 매염제를 사용하여 처리시 거의 모든 경우 연두색을 나타내었다. 연두색을 나타내는 복합염색된 견직물 10종의 색채감성을 요인분석한 결과, 유쾌성, 품위성, 편안성 요인으로 분류되었으며, 이러한 색채감성은 쪽 농도와 매염제의 종류에 따라 대부분 유의한 차이를 보였다. 또한 복합염색된 연두색 견직물의 색채특성과 색채감성요인 간에는 대부분 유의한 상관성을 보여, $L^*$값, $b^*$값, $C^*$값이 크고 $a^*$값이 작을수록 유쾌성과 편안성 감성을 더 강하게 느끼며, $L^*$값이 작고 $a^*$값이 클수록 품위성 감성을 더욱 느끼는 것으로 나타났다. 따라서 쪽과 괴화로 복합염색하고 매염처리한 연두색 견직물의 색채감성요인을 예측변수로 활용할 수 있는 색채 선호도 예측 회귀식이 제안되었다.

• 한국가구학회지
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• 제19권6호
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• pp.460-465
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• 2008

When wood is exposed to natural weathering and UV radiation discoloration progresses. The color variation of heat-treated wood was investigated. Four domestic species were selected and heat-treated at $220^{\circ}C$ and naturally weathered for 42 days. Their colors were measured with a portable colorimeter. The color variations were different between species. The Korean red pine specimens were highly discolored by the natural weathering even though they were heat-treated. In contrast to Korean red pine, Korean pine is less discolored. The maximum color difference of larch was lower than Korean red pine. All specimens of birch exceeded the color difference criterion of 15 after 25 hours with the maximum of 28.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2008년도 춘계학술대회 논문집
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• pp.93-96
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• 2008

Recently, as development of the luminaire industry, many people are interest of the outdoor and indoor lighting environment. Also, as increasing of people activity at night, the role of lighting is more important. In these days, the issue of LEDs lighting environment is using loud colors of LEDs which are the most of primary colors (R, G, B). It is often disliked by same people. Therefore, it is necessary to use of natural color in lighting design using LEDs. The colors of the LEDs are composed of combination of R, G, B diodes. This paper performs to investigate preference of various colors and color patterns of LEDs. The purposes of this study are to suggest standardization and natural colors instead of primary colors using LEDs.

• 한국의류학회지
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• 제29권6호
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• pp.868-876
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• 2005

Silk fabrics were dyed with yellow natural materials. Gardenia, turmeric, amur cork tree, safflower, Japanese pagoda tree, and onion were used as natural materials. Color image of natural dyed silk fabrics was classified by 4 factors(Cheerfulness, Comfortness, Pastrol, Revealation). Cheerfulness factor affected significantly with color image. Amur cork tree or turmeric dyed fabrics were shown as light and cute, safflower or gardenia dyed fabric shown as comfort, and onion dyed fabrics shown as mature and simple. Color image with specialty was significant difference in Preference and Revelation factor. Preference was appeared as amur cork tree>turmeric>gardenia>safflower>Japanese pagoda tree>onion.

• 공업화학
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• 제21권5호
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• pp.559-563
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• 2010

천연색소를 이용한 컬러의 재현은 현대의 웰빙 생활과 밀접한 연관성을 갖게 된다. 이 연구는 일상생활에서 자주 쓰이는 녹색 계, 황색 계, 그리고 적색 계의 컬러를 자연 상의 녹차, 치자, 흑미를 색소원으로 하여 목표 색을 설정하였다. 목표색의 명도(L), 색 좌표(a, b)의 정량적 수치 값을 지정하고 추출용매의 물성을 조절함으로써 목표 색에 가장 접근하는 색을 추출하여 표현하였다. 색소추출 공정에서 용매의 pH, 추출온도, 추출시간이 변수로 설정되었다. 치자의 경우 추출시간이 길수록 진한색이 추출되었다. 추출색소는 색차계를 이용해 색의 L-a-b좌표를 측정하여 목표 색과 비교하였다. 실험조건을 최적화함으로써 목표 색과 가장 색차 값(${\Delta}E$)이 적은 녹색, 황색, 적색의 CIE 기준 값을 제시하고 이 좌표에 맞는 색을 표현하였다.

• 한국식품영양학회지
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• 제11권5호
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• pp.506-512
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• 1998

In order to replance systhetic colors by natural colors as food additive, properties of Gardenia yellow color and Gardenia blue color were compared with Food yellow No. 4 and Food blue No. 1. Color differeance between Food yellow No. 4 and Gardenia yellow color was 7.55. Thermal stability of Food yellow No. 4 was above 99%. On the other hand, in case of Gardenia yellow color, showed adove 90% of residual color units in 8$0^{\circ}C$$\times$30min and 10$0^{\circ}C$$\times$30min at pH 7.0 but 75% in 121$^{\circ}C$$\times$15min. Difference of light stability between Food yellow No. 4 and gardenia yellow color was about 18%. Addition of ascorbic acid was increased about 6% in light stability. Color difference between Food blue No. 2 and Gardenia blue color was 107. Thermal stability of Food blue No. 2 was above 99%. But Gardenia blue color showed 92% of residual color units in 8$0^{\circ}C$$\times$30min and 10$0^{\circ}C$$\times$30min at pH 7.0 but 90% in 121$^{\circ}C$$\times$15min. Difference of light stability between Food blue No. 4 and Gardenia blue color was about 8%. Addition of -tocopherol was increased about 4% in light stability of Gardenia blue color.

• 한국의류학회지
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• 제23권6호
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• pp.788-799
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• 1999

This study was performed to investigate the effect of mordants on the dyeability colorfastness to light and to laundering and biological properties of mordanted and natural-dyed cotton and silk substrates. Natural red dyes were extracted from Caesalpinia Sappan L. (Sappan wood) and Rubia Akane Nakai (Madder) by boil water Five different compounds of Al, Cr, Cu, Fe and Sn were used as mordanting agents. The result of this study are sumarized as follows ; 1. In the of the fabrics mordanted and dyed with sappan wood K/S value increases and λmax shifts to the longer wavelength as mordant concentration increases. Color of the fabrics dyed with sappan wood and madder change to redder bluer and lighter after mordanting. 2. As the number of repetition of dyeing-mordnating process increase the color of the dyed fabrics tend to be redder bluer and darker. Mordanted dyes with Al and Sn make chroma increase. The quantity of mordant absorbed in the silk fabric increase as mordant concentration increase. More Fe is absorbed in silk than Cr is. 3. After being exposed to light the fabrics dyed with sappan wood and madder change to less red Fe and Cu mordanting yeild better colorfastness to light than others does. Natural-dyed fabrics exposed to light tend to be faded and whitened in CIELAB chromaticity co-ordinates. So we might trace back the original color of ancient faded fabrics by changes in color of natural dyes. 4. After washing the colors of natural dyes change to more blue, Fe and Cu mordanting give better colorfastness to wash than others do. 5. The soil-burial cotton is more susceptible to mildew and rot than the silk is. Antimicrobial activity of the natural-dyed cotton can be enhanced by Cu and silk can be enhanced by Cu and Cr mordanting respectively.

• 한국결정성장학회지
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• 제14권2호
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• pp.73-77
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• 2004

수열처리법을 이용하여 저품위의 잠비아산 천연 자수정의 색상 개선을 행하였다. 수열처리 조건은 다음과 같다. 즉, 수열용매 6M-HCI, 반응온도 $300^{\circ}C$, 반응시간 30시간, 충진율 40%이었다. 이와 같은 조건에서 고품질 적자색의 자수정이 얻어졌다. ICP/AES 결과로부터 색 향상은 잠비아산 자수정의 내부에 존재하는 Fe 원소의 함량이 영향을 미치는 것을 알았다. 또한 UV-VIS-NIR분석결과 처리전 잠비아산 수정과 비교해 550nm 흡수피크가 작아짐을 볼 수 있었다. 본 연구의 결과는 수열처리가 잠비아산 자수정의 상업적인 가치 증가에 있어서 적합한 방법이었다.