• 대한전자공학회논문지SP
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• 제44권6호
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• pp.35-46
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• 2007

본 논문은 불필요한 잉크의 양을 줄이기 위하여 전체 잉크량 제한과 도트 가시성 순서에 기반한 6색 분리 방법을 제안한다. 첫 번째, 입력 RGB 이미지의 CIELAB 값이 컬러 혼합 모델을 이용하여 추정되고 미리 정한 색차 허용 범위 내의 CMYKlclm 색료의 모두 조합에 해당하는 CIELAB 값과 비교되어, 그 결과 초기 CMYKlclm 후보군이 선택된다. 그 다음, 전체 잉크량 제한이 과도하게 사용된 잉크량을 줄이기 위해 초기 CMYKlclm 후보군에 적용되고, 최후의 CMYKlclm 후보군이 C, M, Y, K, lc, lm의 도트 가시성 순서에 기반하여 어두운 영역에 사용된 묽은 사이안과 묽은 마젠타의 사용량을 줄임으로써 결정되어진다. 실험에서는 제안된 방법이 좋은 이미지 품질을 유지하면서 과도한 잉크 사용량을 줄인 것을 보여준다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2007년도 추계학술대회 논문집
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• pp.394-395
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• 2007

In order to make full color cholesteric displays, color filter-less R, G, B sub-pixel structured cholesteric LC cells have been studied. To make R, G, B colors, UV induced pitch variant chiral dopant was added to cholesteric LC mixtures. The concentration of the photo-sensitive chiral dopant was adjusted so that the initial state showed blue color and the color was changed from blue to green and red with increase of UV irradiation to the cholesteric cells. To prevent the mixing of R, G, B reflective sub-pixel liquid crystals, separation walls were formed using negative photo resister in boundary area between sub-pixels. Through the optimization of the material concentrations and UV irradiation condition, vivid R, G, B colors were achieved.

• 한국인쇄학회지
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• 제4권1호
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• pp.27-35
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• 1986

Following results about Y,M,C Mask are obtained by the Indirect-Screen Color Separation Method. We make use of experimental system which are in use for the student education. In the Camera-Back Method of reflection copy, the results are summerized as follows.

• 한국인쇄학회지
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• 제5권1호
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• pp.25-32
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• 1987

Following results about Y, M, C mask are obtained by the Indirect-Screen Color Separation Method. We mark use of experimental system which are in use for the student education. In the All-Projection Method of transparency Copy, the results are summerized as follows; (omitted)

• 한국식품영양학회지
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• 제3권2호
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• pp.207-210
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• 1990

Paper chromatography and (NH4)2SO4 precipitation method were used for refinement and separation of proteins Color reaction was tested by Biuret test, Million test, Xanthoprotein test, and Ninhydrin test. Precipitation reaction and coagulation of proteins were tested by heating method (Ethanol, HNO3).

• 한국인쇄학회지
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• 제22권2호
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• pp.83-100
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• 2004

In this paper, the quantity of dot gain in off-set printing is estimated by using the method of UCR(under color removal) and GCR(gray component replacement) and the degree of dot gain is researched through measurement of dot coverage of each color patch at the output film that is variously applied to discretionary quantity of dot gain each line in screen in the printing for the process of color separation and at the offset printing. Also, the best appropriate quantity of dot gain treatment is examined by printing each line in screen for reproduction of colors.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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• pp.960-963
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• 1993

We focus our attention on grading of table meat in accordance with the standard of Japan Meat Grading Association, and construct a beef grading system by image processing. For image processing of beef grading, it needs some techniques such as a shading correction, separation of color image data, and classification of color image data into some grades, for the system construction. However, there are various kinds of weak points in usually used methods for these techniques. Then the authors propose and introduce new approaches using Neural networks and fuzzy inference for the techniques above mentioned, which is very convenient and ensure the high precision.

• 복식
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• 제54권5호
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• pp.125-138
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• 2004

This study has the aim of defining the special characteristics and images of the rainbow colored fashion by understanding the theoretical bases of rainbow colors and analyzing rainbow colored fashion images in historical materials. western and folk costumes. modern fashion design. Giving careful consideration to the rainbow colored fashion makes it possible to develope the innovative way of fashion design to satisfy the needs of color usual for designers and colorists. To obtain the purposes, document study and survey study have been executed. The results of this study are as follows. In document studies, the beginning of rainbow colored fashion went back in ancient Egypt. Also saikdong of korea, poncho of indians are the examples of the rainbow colored fashion. The rainbow colored fashion were put on a man of position in principle ceremony for ornaments. In survey studies, the clothing perception characteristics in rainbow colored fashion were analyzed. Main factors of perception characteristics In the rainbow colored fashion are ＇closed form＇, ＇whole＇, ＇indeterminate＇, ＇rounded＇, ＇planar separation＇ The factors that affect the perception of rainbow colored fashion are ＇closed form＇ and ＇indeterminate＇ characteristics. And rainbow colored fashion images and clothing perception characteristics can be classified into four main images : Vigorous, Colorful/fairy, Fresh, Mysterious/brilliant. Therefore. this study is to systematize the characteristics and images of rainbow colors. Based on the results makes it possible to adapt rainbow colors to fashion design efficiently, for the suggested design elements and color palettes include basic three fashion design elements color. texture. form.

• 한국한의학연구원논문집
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• 제14권3호
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• pp.89-95
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• 2008

A tongue shows physiological and clinicopathological changes of inner organs. Visual inspection of a tongue is not only convenient but also non-invasive. To develop an automat ic tongue diagnosis system for an objective and standardized diagnosis, the separation of the tongue are a from a facial image and the detection of coatings, spots and cracks are inevitable but difficult since the colors of a tongue, lips, and skin in a mouth as well as those of tongue furs and body are similar. The propose d method includes preprocessing with down-sampling and edge enhancement, over-segmentation, detecting positions with a local minimum over shading from the structure of a tongue, and correcting local minima or detecting edge with color difference. The proposed method produces the region of a segmented tongue, and then decomposes the color components of the region into hue, saturation and brightness, resulting in classifying the regions of tongue furs(coatings) into kinds of coatings and substance and segmenting them. Spots are detected by using local maxima and the variation of saturation, and cracks are searched by using local minima and the directivity of dark areas in brightness. The results illustrate the segmented region with effective information, excluding a non-tongue region and also give us accurate discrimination of coatings and the precise detection of spots and cracks. It can be used to make an objective and standardized diagnosis for an u-Healthcare system as well as a home care system.

• 한국항공우주학회지
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• 제30권1호
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• pp.95-104
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• 2002

램제트 연소기내의 복잡한 고속 유동의 가시화를 위해 two color PIV 기법을 개발하였다. Two color PIV 기법은 두 레이저 빔 사이의 시간 간격을 ㎲ 단위 이하로 조절할 수 있어 고속 유동에의 적용이 가능할 뿐 아니라, 기록된 필름에서의 색분리를 통하여 방향성의 분제를 해결할 수 있으며, 거의 완벽한 cross-correlation이 가능하여 signal-to-noise ratio가 상당히 증가한다는 장점을 갖게 된다. 본 연구에서는 램제트 엔진에 대한 기초 연구로서 양쪽 대칭의 공기 흡입구를 갖는 2차원 형태의 램제트 엔진 연소기를 제작하였고, two color PIV 기법을 이용하여 실험을 수행하였다. 흡입공기의 연소실내 유입각도와 연소시내 도움 위치에 따른 연소실 형상을 바꾸어가며 재순환 영역과 유입공기의 혼합과 같은 유동 특성을 분석하였다. 유입각도는 전체 유동장 뿐 아니라 재순환 영역의 크기와 재순환 영역내의 공기질량비에 상당한 영향을 끼치나, 도움 높이는 재순환 영역에 큰 영향을 주지 않는다는 것을 알 수 있었다.