• Archives of design research
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• v.17 no.1
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• pp.277-288
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• 2004

The purpose of this study is to find out the characteristics of building materials and exterior colors of the traditional palaces in Korea and Japan. Nijo-Castle in Japan and Changdeok-Palace in Korea were selected for the subjects of the study. For the color measurement and analysis, NCS color system was used. The results of this study are as follows. In Changdeok-Palace, Korean pine woods, granites, tiles, blue tiles, clays, Jeon-dol(Korean unique tiles for fences and ground), lime powders, straws, Korean traditional papers, bronze were used for building materials. In Nijo-Castle, however, Japanese pine woods, granites, tiles, clays, lime powders, straws, Japanese traditional papers, bronze and golds were used. As for hues in Changdeok-Palace, Y to R, G ∼ G30Y, R80B∼B, B to G were used mainly, and in Nijo-castle, Y to R, B80G∼B90G, G30Y were found. As for tones in Changdeok-Palace, every kinds of tones were used except 'Deep chromatic' and in Nijo-Castle, 'Greyish chromatic', 'Toned light grey', 'Dark deep', 'Toned dark grey', 'Toned grey' were used. At this study, the building materials and exterior colors were analyized between Changdeok-Palace and Nijo-Castle. And from the results, it is expected that we would understand different cultures of two nations, and get the concept of making their own unique characteristics.

• Journal of Wetlands Research
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• v.22 no.4
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• pp.328-336
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• 2020

In this study, the soil characteristics of peat layer in Korea were analysed to predict new peat distribution areas in Taean, Chungcheongnam-do. The soil characteristics of peat distribution areas in Taean were compared with those in other areas in Korea. In Korea, peat researches were conducted in various regions, such as Taean in Chungcheongnam-do, Pyeongtaek in Gyeonggi Province, Gangneung in Gangwon-do, Ulsan, Iksan in Jeollabuk-do and Jangheung in Jeollanam-do. We summarized a) topographic distribution, b) deposition type, c) soil drainage classes, and d) soil suborder of previously studied area to determine criteria for prediction of peat distribution area. Through a case study, the type of peat layer distribution area in Taean were divided into two; (1) a) valley, b) co-alluvium, c) somewhat poorly drained, d) aqualfs and (2) a) marine plain, b) alluvium, c) very poorly drained, d) aquepts. A field survey was conducted to confirm the distribution of the actual peat layer. All peat layer were located within 10-km from the coastal line which is similar to previous studies, and the peat layer was characterized with pH 5, humic acid content of less than 15% and dark brown color. The new peat layer in Taean was deeper, thicker and less humificated than other studied areas.

• Journal of Korean Society for Geospatial Information Science
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• v.22 no.4
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• pp.107-115
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• 2014

Visibility of the road influence the safe driving because it recognizes the obstacle on the road. In this paper, we propose a mobile data acquisition and processing system for evaluating road visibility at night. And it was converted efficiently with mobile images and archived for spatial analysis of road-visibilities at night. This was applied to the following techniques to the system. Low-power computing units, open an image processing library, GPU-based acceleration techniques and document database techniques, etc. And converting the RGB image to the YUV color system, which was integrated the brightness component and the spatial information. High performance Android devices were used to collect brightness data on roads and it was confirmed whether this prototype was to determine the spatial distribution of such acquisition and management systems for spatial-assessments of road visibility at night.

• Korean Journal of Remote Sensing
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• v.32 no.2
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• pp.87-96
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• 2016

Red tide, causes aquaculture industry the damages in Korea every summer, was usually detected by using satellite, aquaculture information was difficult to detect by using satellite. Therefore, we suggests the method for detecting the red tide using the coastal observation and the product from the unmanned aerial Vehicle. As a result, we obtained the high resolution unmanned aerial Vehicle images, detected the red tide by using the unsupervised classification from the true color images and the simple algorithm from the RGB color images. Compared the previous color images, unmanned aerial Vehicle images were clearly classified the ocean color, we were able to identify the red tide distribution in sea surface. These methods were determined to accurately monitor the red tide distribution on the aquaculture fields in the coastal waters where is established the aquaculture.

• Proceedings of the Korea Society of Costume Conference
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• 2001.04a
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• pp.42-43
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• 2001

색상특성은 각 계열별로 차이가 있었으나 전반적 으로 고명도.저채도 중심으로 황색계열과 청색계열 은 고명도 위주의 분포특성을 보였다. 이어 반하여 적색계열은 비교적 색조의 영역이 넓었으며 고채도 의 분포특성이 두드러졌다. 자색계열은 저명도.중 채도, 녹색계열은 고명도.저채도 중심이었다. 남.녀복의 색조유형으로서 여복에서는 white보다는 tone 중심의 색조특성이 나타났으며. 남복에서는 white를 제외한 tint의 색조유형이 많았다. 이는 당시대인의 백색지향 의식을 대변하는 것으로 사료된다. 음양오행론의 배색원리에 의해 검토한 결과 여복 은 상생이 남복보다 낮게 집계되었으며, 반대로 파버 비렌의 색채조화의 배색원리에 의한 검토 철과는 남 복보다 여복의 적용수치가 높았다. 이것은 감각적인 색채조화 보다는 의례적인 성향이 좀 더 징한 남복이 서구의 색채조화의 척도에 적합하지 않은 결과로 추측된다. 전통복의 배색특성은 남녀가 매우 다른 양상을 보 이고 있었다. 여복의 기본 복식구조인 저고리/치마 는 백/청색계열, 백/황색계열과의 배색이 중심으로서 면적대비 및 명도대비에 의한 조화가 이루어지고 있었다. 반면에 저고리의 배색은 유채색과 백색계열 의 배색으로 채도대비의 성향이 강했다. 남복은 황/백색계열. 백/청색계열로 명도의 차가 크지 않았다. 포/띠의 의복 구성에 있어서는 흑색 또 는 적.자색 등의 세조대(細條帶)로 인해 채도대비, 면적대비, 명도대비의 배색효과를 찾아볼 수 있었다. 이상과 같은 분석결과를 통한 한국인의 색사용의 특정은 복식의 전면에 등장하는 백색지향과 음양오 행설을 그 배경으로 하고 있다. 백색위주의 색사용은 인공미가 배제된 자연미의 추구에 기인한 것으로 토착화된 한국의 색으로 볼 수 있다. 백색은 여러 색을 통합하고 배색된 색채착화된 한국의 색으로 볼 수 있다. 백색은 여러 색을 통합하고 배색된 색채들을 담하게 만드는 것이 특징 으로 한국전통 복식의 배색특성을 주도하고 있었다. 마지막으로 본 연구는 회화자료를 근거한 것으로 풍속화의 변색 및 탈색에 의해 당시대의 정확한 색채규명이 어려우며, 실물작품이 아닌 도판을 통한 측 색으로 색의 오차가 발생할 수 있음을 연구의 한계 점으로 언급하고자 한다.

• Journal of the Korean Applied Science and Technology
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• v.38 no.4
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• pp.1176-1182
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• 2021

In this study, the emulsion stability of henna, a natural hair dye, according to the content of cetyl alcohol, one of the emulsification stabilizers, was analyzed, and the content of cetyl alcohol showing the most stable emulsification was confirmed. To analyze the emulsion stability, differences in particle size, particle shape, viscosity, and color after dyeing were compared according to the content of cetyl alcohol. As a result of dynamic light scattering (DLS) zeta analysis, cetyl alcohol 3% showed the highest zeta potential value of 115.9 mV, and the particle size distribution was henna in which a cream-type hair dye containing 3% cetyl alcohol was dispersed in distilled water. The width of the particle size distribution was narrow compared to. As a result of viscometer analysis, the viscosity increased as the content of cetyl alcohol increased. As a result of measuring the henna pH of the cream formulation, it was measured in a pH range suitable for the scalp. As a result, emulsion stability increases as the content of cetyl alcohol increases in henna cream formulations for hair dye.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.22 no.3
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• pp.1-8
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• 2022

Recently, Google MedeiaPipe presents a novel approach for neural network-based hair segmentation from a single camera input specifically designed for real-time, mobile application. Though neural network related to hair segmentation is relatively small size, it produces a high-quality hair segmentation mask that is well suited for AR effects such as a realistic hair recoloring. However, it has undesirable segmentation effects according to hair styles or in case of containing noises and holes. In this study, the energy function of the test image is constructed according to the estimated prior distributions of hair location and hair color likelihood function. It is further optimized according to graph cuts algorithm and initial hair region is obtained. Finally, clustering algorithm and image post-processing techniques are applied to the initial hair region so that the final hair region can be segmented precisely. The proposed method is applied to MediaPipe hair segmentation pipeline.

• Conservation Science in Museum
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• v.29
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• pp.111-132
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• 2023

Terahertz radiation cannot pass through metal and therefore reflect and return most signals. Utilizing this property, this study analyzed information on paintings to verify the usage of metal materials on paintings and the scope of their application. First, the study tested specimens of metal-based pigments and synthetic pearl pigments with metallic colors and textures in order to compare basic characteristics of terahertz images, such as signal severance caused by metallic substances, traits reflected in cross-section images, and high degree of reflection. Subsequently, based on the collected information, the study diagnosed various types of paintings including Korean traditional paintings and oil paintings using the terahertz imaging technique to confirm the usage of metal-based pigments in the inner layers of paintings and their scope of application. The terahertz imaging technique could has the potential to provide scientific evidence for previously-undiscovered information and art-historical records about various types of paintings that used metalbased pigments, thereby rendering significant utility for the conservation and authentication of paintings.

• The Journal of the Korea Contents Association
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• v.5 no.4
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• pp.85-93
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• 2005

In this paper, we propose recognition system which tracks the unmarked hand of a person performing sign language in complex background. First of all, we measure entropy for the difference image between continuous frames. Using a color information that is similar to a skin color in candidate region which has high value, we extract hand region only from background image. On the extracted hand region, we detect a contour and recognize sign language by applying improved centroidal profile method. In the experimental results for 6 kinds of sing language movement, unlike existing methods, we can stably recognize sign language in complex background and illumination changes without marker. Also, it shows the recognition rate with more than 95% for person and $90\sim100%$ for each movement at 15 frames/second.

• Journal of the East Asian Society of Dietary Life
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• v.11 no.6
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• pp.498-505
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• 2001

This study was conducted to investigate the characteristics of dough and bread prepared by a Korean pigmented rice(KPR). The fermentation of the dough was promoted with a lower pH. Though the springiness and gumminess of the dough were low, but It was more tender and moist than that of control. Color of the bread showed red wine and the acceptabi]ity of the bread was higher than control evaluated by sensory test. The tissue of the bread has more small particles of starch than that of control and It was densely populated. The distribution tendency of the starch particles in the tissue of the bread was the more apparent in the KPR. And big starch particles like lens were observed in the dough with 10% of KPR. Mouse feeling of the bread was more sticky but, it was little clogging.