• Title/Summary/Keyword: 색지각

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등시지각 색 샘플링을 기반한 CIEL*a*b*-CMY 비선형 색변환

  • 오현수;이을환;유미옥;최환언;안석출
    • Proceedings of the Korean Printing Society Conference
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    • 2000.12b
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    • pp.5-10
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    • 2000
  • In case of outputting the image with color printer, image is occurred color distortion by characteristics of paper, effect by overlap between neighbor dots and the mechanical characteristics if printer. Color calibration is needed to reduce this color distrotion. To color calibration, we select the color sample in printer color gamut. The accuracy of color calibration is determined by the number of sample, distribution, and calibration method. Generally, color space is selected the color sample dividing equal interval. In this case, the range of gamut of printed color patches is reduced due to the effect of inks overlap. Therefore, error is occurred when color transformation relatively. In this paper, we have the color sampling based on equi-visual perception and then reproduce the color using the Neural-Network and interpolation by LUT.

Image Perception of Nurses' Uniforms according to Colors and Motifs (색과 문양의 감성 이미지 효과 - 간호사 복을 대상으로-)

  • 김재숙;이희승
    • The Research Journal of the Costume Culture
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    • v.12 no.3
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    • pp.379-391
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    • 2004
  • The purpose of this study was to examine the effects of uniform's color and motif on nurse's impression formation. The experimental design was 5×3×2(uniform color×motif ×perceiver's gender) factorial design with a between-subjects design. The experimental materials developed for the study were a set of stimuli and a response scale. The subjects were 738 undergraduate students of Daejon and Chungnam province. The SPSS package was used for data analysis which includes factor analysis, two-way ANOVA, Duncan's multiple range test, and Cronbach's α to measure the reliability. Results were as follows; The image or the stimulus was consisted of the 4 different dimensions(evaluation, sociability, ability, potency). All the independent variables showed some significant impression effects on selected dimensions. The motif and perceiver's gender also showed significant main effects as well as some interaction effects with the color variable on some selected impression dimension and the impression effects of the three variables in relationship to perceiving nurses' images. On a conclusion, these results supported the Gestalt theory.

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Color Vision의 Physiology와 Color Space

  • 이종문;조순채;이종신
    • Textile Coloration and Finishing
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    • v.3 no.3
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    • pp.57-68
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    • 1991
  • Color vision 현상은 대상물질에 의해서 투과(transmission), 굴절(refraction), 반사(reflection)되어 나오는 광(light)이 망막(retina)에 비칠 때 시신경을 자극하여 뇌에 전달됨으로써 일어나는 하나의 감각현상(sensation)이다. 그러므로 그것은 인간의 감각상태, 광의 종류, 대상물질의 환경조건에 따라서, 즉 시각이 이루어진 그 순간에 인간의 눈이 어떻게 작용 하느냐에 달려있는 복잡한 현상 이다. 그래서 지금까지 발표된 20여개의 색채공간 중 그 어느 것도 인간의 감각량을 똑같이 표현할 수 없었던 것은 사실이다. 모든 자연현상이 그렇듯 인간도 개체마다 모두 다르고 대상물질 및 광에 관련된 너무 많은 요소(Factor)가 색지각 현상에 작용하기 때문에 이의 과학적 표현을 위해서는 단순화 및 normalization의 과정을 거치지 않으면 안되었던 것 같다. 지금까지 발표된 20여개의 color space중, perceptibility에 근거를 둔 유일한 color space인, Munsell color space의 해석에 Spline method 같은 수치 해석적 방법을 쓰지 않으면 안되는 그 이유를 제시하려 한다.

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A Study on the Sense of Continuity between Two Rooms by Adjusting the Illuminance and The Color Temperature of Lighting (조명의 조도 및 색온도 제어에 의한 실내 두 공간의 공간감 변화)

  • 윤혜림
    • Korean Institute of Interior Design Journal
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    • no.33
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    • pp.83-89
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    • 2002
  • This paper describes the experiments to examine the sense of continuity produced by lighting between physically separated spaces. Tolerable limits of illuminance were measured for providing a sense of continuity between two rooms connected by a window. In the experiments the illuminance and color of lighting of the subjects room were changed while those of the other room were kept constant. The results show that the observers could certainly determine the range of optimum illuminance for them to recognize continuity, and the variance of the results between observers is very small. Moreover, the tolerable range of illuminance was almost constant as far as the color difference was less than some critical value. This finding would be helpful in designing a lighting system for providing a sense of continuity.

Color decomposition method for multi-primary display using 3D-LUT in linearized LAB space (멀티프라이머리 디스플레이를 위한 3D-LUT 색 신호 분리 방법)

  • Kang Dong-Woo;Cho Yang-Ho;Kim Yun-Tae;Choe Won-Hee;Ha Yeong-Ho
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.42 no.6
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    • pp.9-18
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    • 2005
  • This paper proposes the color decomposition method for multi-primary display (MPD) using a 3-dimensional look-up-table (3D-LUT) in a linearized LAB space. The proposed method decomposes conventional three-primary colors into the multi-primary control values of a display device under constraints of tristimulus match. To reproduce images on the MPD, the color signals should be estimated from a device-independent color space, such as CIEXYZ and CIELAB. In this paper, the linearized LAB space is used due to its linearity and additivity in color conversion. The proposed method constructs the 3-D LUT, which contain gamut boundary information to calculate color signals of the MPD. For the image reproduction, standard RGB or CIEXYZ is transformed to the linearized LAB and then hue and chroma are computed to refer to the 3D-LUT. In the linearlized LAB space, the color signals of a gamut boundary point with the same lightness and hue of an input point are calculated. Also, color signals of a point on gray axis are calculated with the same lightness of an input. With gamut boundary points and input point, color signals of the input points are obtained with the chroma ratio divided by the chroma of the gamut boundary point. Specially, for the hue change, neighboring boundary points are employed. As a result the proposed method guarantees the continuity of color signals and computational efficiency, and requires less amount of memory.

Analysis of affective words on photographic images and the effects of color on the images (사진 이미지와 관련된 감성 어휘 분석 및 색 유무에 따른 감성 반응 비교)

  • 박수진;정우현;한재현;신수진
    • Science of Emotion and Sensibility
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    • v.7 no.1
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    • pp.41-49
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    • 2004
  • The affective words on photographic images were analyzed and a model was structured. Based on this model, the effects of color on the affections were studied. In study 1, the photographic images with various materials and techniques were presented and the affective responses are collected. The factor analysis using principal axing method showed that the variance of the affective words could be explained about 42% by the three factors. These are named positive-negative, dynamic-static, light-heavy, respectively. In study 2, the effects of color on the affections were evaluated on three basic dimensions. Ninety representative color images were converged black-and-white images, and each of 180 images was rated on the three affective scales. The t-test showed that the effects of color are statistically significant on the three affective scales, respectively. The achromatic images were felt more negative, more static, and heavier than chromatic images.

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간호사복의 이미지 지각 -색상, 문양 중심으로 한 준 실험연구-

  • 김재숙;이희승
    • Proceedings of the Costume Culture Conference
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    • 2003.04a
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    • pp.72-73
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    • 2003
  • 본 연구는 간호사복의 색상 및 문양에 따른 이미지를 분석하고, 색상과 문양이 조합을 이루었을 때 어떤 이미지로 통합되는지를 규명하고, 피험자에 따라 이미지지각의 차이를 알아보는데 목적이 있었다. 연구방법으로는 준실험 연구방법으로 피험자간 설계를 하였으며, 피험자는 대전, 충남지역의 대학생을 대상으로 시행하여 통계에 적합한 739부를 사용하였다. 연구에 사용된 자극물은 간호사복 catalog에서 선택한 모델에게, 색상(흰색, 분홍색, 하늘색, 녹색, 베이지색)과 문양(무지, 줄, 꽃)을 조합한 총 13개의 자극물을CAD simulation으로 제작했다. (중략)

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Extraction and Use of Aesthetic Mesure from Image and Video (영상과 비디오에서 미도값의 추출 및 활용)

  • Shin, Kwang-Seong
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2012.01a
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    • pp.61-62
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    • 2012
  • 문 스펜서는 색채조화 문제를 각각 색채 조화의 범위, 면적 효과, 배색의 미도로 나누었다. 기존의 색채 조화론의 부족한 점을 제거하여 보다 과학적이고 정량적인 조화이론을 전개했다. 본 논문에서는 영상과 비디오에서 일정 부분을 미도 계산에 활용하였다. 감각 기관이 외계로부터 자극을 받아 감각 지각을 생기게 하는 감수성을 말하는 감성으로 취급되는 색채조화 및 부조화의 문제를 수치적으로 계산하였다. 비디오 영상에서 두 가지 색을 식별하여 미도가 좋은 배색인지 아닌지를 나타내었다.

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Black in Along with the Gods (<신과 함께>의 검정, (비)물질과 지각의 상호작용)

  • Kim, jong-guk
    • Proceedings of the Korea Contents Association Conference
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    • 2019.05a
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    • pp.119-120
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    • 2019
  • 이 글은 물질의 본질로 규정한 아리스토텔레스의 색채론과 디지털이미지의 비물질적 특성으로서의 검정을 전제로, <신과 함께>의 서사를 주도하는 인물과 이미지를 구성하는 공간에 채워진 검정의 의미를 분석한다. 할리우드영화에서 검정은 악의 근원이며 공포이다. 검정에 관한 예외적이고 특별한 특성을 성찰하는 철학, 회화, 문학에서의 비유와 달리, 대중영화에서 검정은 가장 보편적인 의미를 표현한다. 삶과 죽음의 경계를 오가는 <신과 함께>에서 검정은 저승의 공간과 차사라는 인물을 구성한다. 한국영화에서 검정은 상상의 공간을 상징화하는 유용한 색이다. 이 글은 한국영화 <신과 함께>에 사용된 검정을 통해 동서양 색채문화의 차이를 살펴보고, 사회문화적 맥락에 따라 상호작용하는 의미를 분석한다.

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The Effects of Clothing Styles and Colors on a Body Image Perception (의복스타일과 색이 신체이미지 지각에 미치는 영향)

  • Kim, Hyo-Sook;Choi, Chang-Seok;Lee, Eun-Sil
    • Journal of the Korean Home Economics Association
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    • v.41 no.9
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    • pp.135-148
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    • 2003
  • The purpose of this study was to examine the effect of clothing colors, clothing styles on women's body image perception. The experimental design was 2${\times}$2${\times}$9(perceiver's gender ${\times}$clothing styles${\times}$clothing colors) factorial design with between-subjects design. Subjects were 320 college students in the metropolitan area of Seoul. Perceiver's gender, clothing styles, and clothing colors gave a significant influence on the 3 variables of shoulder, the upper half of the body, and bust. Shoulder and the upper half of the body had an interaction effect by clothing styles and clothing color. Perceiver's gender gave a significant influence on hip size, length of leg, height, clothing styles did a significant influence on hip size, length of leg, height, and slender figure. Clothing colors gave a significant influence on length of leg, height, and slender figure. Length of leg and slender figure had an interaction effect by perceiver's gender and clothing styles. Hip size had an interaction effect by perceiver's gender and clothing color. Hip size had an interaction effect by clothing styles and clothing color. The results of this study support that coloration of clothing and clothing style affects perception of stimulus persons wearing apparel.