• 대한한의진단학회지
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• 제17권3호
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• pp.215-223
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• 2013

Objectives Although tongue diagnosis is one of major diagnostic methods in east Asian traditional medicine, the standard of normal tongue color have not established. So we tried to suggest the method to establish the standard of normal tongue color range and the pilot data about the normal range. Materials and methods: 22 precedent study papers that presented the numerical data of normal (light red) tongue color were analyzed. At the same time, 46 adult people tongue color data were also collected and analyzed. Results Precedent studies showed remarkable fluctuations of the range of normal tongue color. Collected tongue color data of the 46 people showed mean Hue value 2 and standard deviation 14 in HSB system. Additionally, 3 ways of standard establishment for normal tongue color were suggested. Conclusion We suggest statistical method as a reasonable method for tongue color standard establishment and $2{\pm}14$ as a reference Hue value for normal tongue color.

• 한국의류산업학회지
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• 제13권3호
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• pp.332-345
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• 2011

This research designed usable standard color chart which was planned by hue and tone color system. This research studied 5 types standard color chart by designed tone map and preceding research. "Basic Color Chart 14 Colors" was planned for kindergarteners. "Primary Color Chart 63 Colors" was planned for schoolboys. "Middle Grade Color Chart 114 Colors" was planned for junior high school students. "High Grade Color Chart 152 Colors" was planned for senior high school students. "Hue and Tone 205 Colors" was planned for university students and general publics. These 5 types standard color chart were produced the trial color coordinate card and attached the Munsell notation which could reappear the spare color paper when needed. These 5 types standard color chart would be offered the data base for efficient color coordinate education as school age.

• 한국의류산업학회지
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• 제5권4호
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• pp.337-350
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• 2003

Fiber industry is export leading industry that guide national economy development after the 1960s in Korea. But lately, including China and Southeast Asia pursuit, domestic fiber industry is taking serious situation. Various kind methods can be proposed for high value added in fiber industry, the research about color is essential. The importance of color is increasing in modern textile and fashion industry. Color is important factor of textile and fashion industry because color affects strong influence in human's sensitivity. Color expresses by hue, value and chroma but fashion industry is using mainly hue and tone color system. Daegu Gyeongbuk area is domestic maximum syntheic fiber producing district. This study planned the polyester standard color collections for general color management of the polyester industry in Daegu Gyeongbuk. As basic research for this I investigated the color appearance distribution of polyester fabrics in Daegu Gyeongbuk that were produced for the recently 10 years and Japanese polyester color collections "SCOTDIC 2450". Reflect these study finding, in this research planned the usable standard color collections "Hue and Tone Polyester Standard Color 288". This research constructs insufficient domestic color infrastructure and expect that basic role to develop the competitive power for Korean fiber industry.

• 한국산학기술학회논문지
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• 제16권3호
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• pp.2151-2157
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• 2015

색 정보 전달의 호환성을 위해 채택된 sRGB 색공간은 수많은 컴퓨터 시스템 및 주변 멀티미디어 장치들에 효율적인 색 정보 전달을 가능하게 한 표준이다. 하지만 현재 우리가 일반적으로 사용하고 있는 디스플레이 모니터는 sRGB의 표준과 다른 비 표준 삼원색과 감마 특성을 가지고 있다. 본 논문에서는 비표준 디스플레이를 sRGB 표준의 화상 색에 좀 더 가까운 색을 재현하기 위한 오차 보정 행렬을 제안한다. 제안한 색도 오차 보정 행렬을 이용한 방법을 적용한 실험 결과, 비 표준 디스플레이에 재현된 영상에서의 색 재현 오차가 감소하는 것을 확인할 수 있다.

• 한국산업정보학회논문지
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• 제17권7호
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• pp.81-88
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• 2012

본 논문은 표준 디스플레이를 이용한 OLED의 색재현성 모델링을 제안한다. 비표준 RGB 디스플레이의 종류는 매우 다양하게 있으며, 그 색 재현 특성은 삼원색 좌표와 기준 백색 좌표 등 여러 가지 요인에 의해서 다르게 나타난다. 본 논문에서는 변환 매트릭스를 이용하여 OLED 디스플레이의 색 재현 특성을 표준 디스플레이에 재현할 수 있는 알고리듬을 제안한다. 본 연구에서 제안된 알고리듬을 이용하면, 색 재현 특성을 사전에 시뮬레이션으로 확인할 수 있으므로, 기존 디스플레이의 성능 향상이나, 새로운 디스플레이를 개발할 때 매우 유용하게 쓰일 것으로 기대된다.

• 한국연초학회지
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• 제17권2호
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• pp.177-183
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• 1995

This study was conducted to develop the most precise NIR(near infrared spectrometric) calibration for rapid determination of chemical composition in ground samples of toasted burley tobacco using stepwise, stepup, principal component regression(PCR), partial least square(PLS) and modified partial least square(MPLS) calibration method. The number of wavelength(W) selected by stepup multiple linear regression using: second derivative spectra was as follows: total sugar(TS)-4 W, nicotine-9 W, total nitrogen(TN)-2 W, ash-8 W, total volatile base(TVB)-5 W, chlorine4 W, L of color-6 W, a of color-6 W and b of color-7 W. Comparing the calibration equations followed by each chemical components, the most precise calibration equation was MPLS for 75, a and b of color, PLS for nicotine, ash, TVB, chlorine and L of color and stepup for TN. The standard error of calibration(SEC) and standard error of performance(SEP) between result of near infrared analysis and standard laboratory analysis were 0.18, 0.40% for 75, 0.06, 0.08% for nicotine, 0.18, 0.16% for TN, 0.33, 0.46% for ash, 0.04, 0.03% for TVB, 0.08, 0.06% for chlorine, 0.54, 0.58 for L of color, 0.22, 0.22 for a of color and 0.27, 0.27 for b of color, respectively. The SEC and SEP of ash and TVB were within allowable error of standard laboratory analysis, nicotine, TN and chlorine were 1.2-2.0 times and 75 were 2.1-4.0 times larger than allowable error of standard laboratory analysis. The ratio of SEC and SEP to mean were 1.5, 1.6% for L of color, 3.7, 3.8% for a of color and 1.8, 1.8% for b of color, respectively. Key words : burley tobacco chemistry, near infrared spectroscopy.

• 조명전기설비학회논문지
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• 제27권5호
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• pp.1-8
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• 2013

The purpose of this study is investigate the characteristics of color perception among Chinese people, and compare the characteristics among Korean, Chinese and Japanese people, using Munsell color space. The results are as follows: 1) Chinese people were more likely to tell accurately red, yellow red, yellow, purple, and an achromatic color, but did not do accurately green yellow, blue, and purple blue. In terms of a comparison of average perceived color and standard color, there were significant differences among green yellow, blue green, and blue and standard color; 2) Color perceptions of Korean, Chinese and Japanese people were broadly classified into four types. Also, of ten chromatic colors, the color perception type of only two colors, red and yellow, were is same among the groups of the three countries. However, the color perception type of yellow red, green, blue green and blue were different among them; and 3) In terms of a color perception accuracy test among the groups of the three countries, there were not significant differences between yellow and purple and standard color. However, significant differences existed between the rest of the colors and standard color.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(4)
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• pp.49-52
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• 2002

This paper presents a fast algorithm for face detection from color images on internet. We use Mahalanobis distance between standard skin color and actual pixel color on IQ color space to segment skin color regions. The skin color regions are the candidate face region. Further, the locations of eyes and mouth regions are found by computing average pixel values on horizontal and vertical pixel lines. The geometry of mouth and eye locations is compared to the standard face geometry to eliminate false face regions. Our Method is simple and fast so that it can be applied to face search engine for internet.

• 한국인쇄학회지
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• 제28권2호
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• pp.69-85
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• 2010

Currently, environmental contaminants that can cause Aromatic types of hydrocarbons, less than 1% made of Aromatic Free kind of used products, soybean oil products with linseed oil with the products, rice products using a wide range of environmentally ecological ink since 2000 is released quickly. All materials used in printed material, if the green is the best way to print the composite materials in industrial applications, because each process on the print quality and productivity, there can be many differences in this experiment because it accounts for a large proportion in the print general ink in the ink section and the International color standards(ISO2846-1:2006) certified ecological ink were compared. Therefore, in this paper has the ink released from the same company, each common general ink and ecological ink in the same condition which results were focused on whether the emerging international color standard(ISO 2846-1:2006) recognized for environmentally ecological ink printed color reproduction of the actual offset(color reproduction) how conformity to ISO 12647-2 standard color on the basis of the offset would check Color Reproduction. Based on the results of the experiments of this study, given the ecological ink coated paper, uncoated paper both color difference and the gamut of the ISO 12647-2 standard is suitable for ecological ink, the ink's color gamut reproduction, even more than existing international standards, there is no confirmed that the correct color reproduction possible. Using environmentally ecological ink industries is expected to respond to environmental policy.

• 한국식품영양과학회지
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• 제13권1호
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• pp.1-8
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• 1984

식품이 가지고 있는 고유한 색깔은 소비자의 기호성 또는 영양학적 가치의 지표가 될 수 있으며 가공 및 저장처리조건에 따른 식품의 중요한 인자로 작용 할 수 있다. 따라서, 본 실험에서는 식물성 식품재료의 품종, 성숙도, 성장조건(온도, 수분. 제조공정 별)에 따른 Surface color change를 color & color difference meter와 Munsell disc 색도계(色度計)로 X, Y, Z값을 측정하고 공식에 의하여 Y(one of variation in luminous reflectance), x, y(chromaticity)를 구하여 이로부터 작성한 색도좌표상에서 식품의 색상(hue) 및 강도(chroma)를 산출하여 식품의 색도 변화를 검토하였다. 이와 같이 color & color difference meter와 같은 reflectometer를 이용하여 얻은 data를 중심으로 각각의 chromaticity diagram을 작성, 식품의 저장 및 가공처리별 색도변화를 측정하여 이것을 토대로 식품 품질의 특성을 판정할 수 있는 좋은 기초자료를 얻을 수 있었다.