• Title/Summary/Keyword: perception of color

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A Study on Cerebral palsied children's Visual Perception

  • Lee Hyo-Jeong
    • The Journal of Korean Physical Therapy
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    • v.15 no.3
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    • pp.265-276
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    • 2003
  • This study was to investigate the dffects of a color reversal visual perceptual training program on spastic cerebral palsied children's figure-ground discrimination disabilities and to investigate the difference between the control group and experimental group. Subjects of the study were composed of children with spastic cerebral palsy whose age varied from five to seven years old, whose I.Q. was over 70 and whose P.Q. was over 70. Implication of this study can be summarized as follows; First, Perceptual training and speech training programs should be emphasized to improve the preparative ability of spastic cerebral palsied children. Problems of perception cerebral palsied children are concerned with figure-ground discrimination disability. Second, Though it was demonstrated that color reversal visual perceptual training program can be effective through the prestudies and this study, more researches should be made to apply this kind of theory in real education environments. More interest in different color forms for training of cerebral palsied children should be taken. Third, Reprecations of the study should be considered with modified group identities(age, I.Q., P.Q.).

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A Study on Image Perception according to Perceiver's Social Value and Hair Style Variation (지각자의 사회적 가치와 헤어스타일 변화에 따른 이미지 지각 연구)

  • Lee Myoung-Hee
    • The Research Journal of the Costume Culture
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    • v.12 no.6 s.53
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    • pp.971-983
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    • 2004
  • The purpose of this study was to investigate the effect of perceiver's social value, hair style, and hair color of object person on image perceptions. For social value variable, materialism and traditionalism were investigated. Subjects were 343 women in Seoul. Perceiver's materialism gave a significant influence on perception of elegance. The less materialistic group evaluated the hair style of object person more elegant than the more materialistic group. The more traditional group evaluated bright brown hairs less pretty than the less traditional group. This means that traditional people have less preferable image on bright brown hairs compared to the black and dark brown hair as it is different from Korean traditional hair color. Medium straight hair styles were evaluated lowest in preference and individuality. Short straight hairs were evaluated as the most elegant style and medium permanent hairs as the least elegant one. Long wavy hairs were evaluated highest in femininity, and straight hairs were evaluated lower in prettiness and activity than wavy hairs. The bright brown hairs were evaluated as the most individual color, and black was the least one. The bright brown was perceived lowest in elegance. Black and dark brown of the short straight hair style were perceived much more elegant than the bright brown of the same style, and black long wavy hairs were evaluated highest in femininity. The present findings provide that social value, hair style, and hair color are significant characteristics when perceiving women's image.

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A Study on the Characteristics of Blur Color in Olafur Eliasson's Works (올라퍼 엘리아슨의 작품에 나타난 블러 색채 특성 연구)

  • Kim, Sun-Young
    • Korean Institute of Interior Design Journal
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    • v.21 no.3
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    • pp.87-94
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    • 2012
  • This thesis has purpose of explaining that blur color is not only appreciated but also undecided spacial color in contemporary space design and examining effects of space experience through the light. In keeping such developments, blur color has been perceived as the object of another tool in contemporary space and has provided us with new views by providing various program, sensor and screen from digital media. With the expansion of blur color, light has changed a spacial color structural that is not simple meaning factor into the essential concept. So this research aims to understand the principle of blur color in Olafur Eliasson's work, which of the fine artist in diverse fields from installation art to media art. The principle of blur color such as deconstruction of vanishing point, dimensional transfer, color gradation, and fiction of visual perception makes it possible to extract the expressed element and method of blur color. Meanwhile, the features of blur color such as sense of depth from viewpoint changes, hybrid from collapse of order, media metamorphosis from reconstitution and interaction from uncanny can be inferred from case analysis.

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Flexible Technique to Enhance Color-image Quality for Color-deficient Observers

  • Woo, Sungju;Park, Chongwook;Baek, Ye Seul;Kwak, Youngshin
    • Current Optics and Photonics
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    • v.2 no.1
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    • pp.101-106
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    • 2018
  • Color-normal observers (CNOs) and color-deficient observers (CDOs) have different preferences and emotions for color images. A color-image quality-enhancement algorithm for a CDO is developed to easily adjust images according to each observer's preference or image quality factors. The color-perception differences between CDO and CNO are analyzed and modeled in terms of the YCbCr chroma ratio and hue difference; then the color-shift method is designed to control the degree of color difference.

Effect of Constituent Characteristics of Cotton Fabrics on the Visual Perception and Image Scale (면직물의 구성특성이 시지각에 미치는 영향과 이미지 스케일에 관한 연구)

  • 노의경;유효선
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.8
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    • pp.1142-1152
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    • 2004
  • The purpose of this study is to verify the visual perception on various cotton fabrics of the same color. Results obtained through subjective evaluation of cotton fabrics showed that the textural adjectives could be classified into 3; warm/cool, flexibility and surface property, the sensibility adjectives into 5; simple, attractive, masculine, conservative, comfortable and visual perception adjectives into 6; hard, warm, smooth, brilliant, classic and casual. Image distribution results on 12 different fabrics, showed different distributions among textiles on visual perception due to varying texture and sensibility. In thickness, weight, weave type, bending and surface characteristics which are structure characteristics, significant differences were shown for visual perception examination. Having placed into an image scale, visual perception dimension developed divided into the 'soft-hard' axis and the 'warm-cool' axis.

Pseudo-linear IHS-based Coordinate System for Color Image Enhancement (칼라 영상의 향상을 위한 준 선형 IHS 기반 좌표계)

  • 김정엽;심재창;김순자;하영호
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.29B no.9
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    • pp.59-67
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    • 1992
  • Color image enhancement can be achieved easily by using linear form of coordinate system. But some popular color coordinate systems almost have nonlinear characteristics in the geometric form. In this paper, the proposed coordinate system has pseudo-linear form and based on IHS system which represents human color perception appropriately. And for the image intensity processing, an edge-preserving smoothing algorithm is presented.

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A Study on the Space interpretation by Application of Color Structure in Contemporary Architecture (현대건축의 색채구조를 적용한 공간해석에 관한 연구)

  • Kim, Sun-Young
    • Korean Institute of Interior Design Journal
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    • v.20 no.3
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    • pp.152-160
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    • 2011
  • Contemporary architecture pursues new method of Interpretation of Non-linear space as digital media appears. As various materials and new methods can be used due to developments in science and expansion of thinking, contemporary architectural color developed extensive possibilities. It means not only the change of drawings, method of architectural product and materials but also the change of value system for architectural space. Thus the purpose of this paper is to suggest interpretation of space applied by color structure, and this point of view was based on the three elements of color perception which are light source, reflector, and observer. According to this categorization, architectural color of exterior color, layer color and interaction color are explained via examples of colors recently used on the contemporary architectures. In summary, contemporary architecture can be explained by Non-construction space interpretation for intrinsic complex meanings. Therefore, it can be explained as moving space, collage, by picturesque space, moving blur color and emptiness of color. This pursues various point of views for space interpretation, therefore it can be developed to the identity of strengthening architectures' design concept.

Studies on Color and Gloss as Evaluating Sensory Properties of Vegetables and Their Cooking (식물の색채관리に관する연구)

  • 남출봉
    • Journal of the East Asian Society of Dietary Life
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    • v.7 no.1
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    • pp.12-135
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    • 1997
  • Color(and appearance)is one of the most important visual attributes in food. The favorite color of food is depend on the nation and its culture. Unfortunately the word on color ash superseded appearance as the description of the total visual perception of food. The optical properties are color, gloss, translucency, the uniformity of these attributes over the surface of the product, and the appearance boundary condition visual flavor. The major purpose of this lecture is to stress the importance of color and gloss on the basis of sensory evaluation for vegetables and these cooking process. These points are as follows: 1. Color and palatability Principle of cooking ; five tastes and five colors 2. Pigments and colorimeter Plant pigments ; Chlorophyll, Carotinoid, Anthocyan Optical properties and colorimeter Correlating instrumental and pigments data 3. Color, gloss of vegetables Effect of color and gloss on several cooking treatments 4. The importance of color of foods to the food industry and consumer

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A Basic Study on the Conversion of Color Image into Musical Elements based on a Synesthetic Perception (공감각인지기반 컬러이미지-음악요소 변환에 관한 기초연구)

  • Kim, Sung-Il
    • Science of Emotion and Sensibility
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    • v.16 no.2
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    • pp.187-194
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    • 2013
  • The final aim of the present study is to build a system of converting a color image into musical elements based on a synesthetic perception, emulating human synesthetic skills, which make it possible to associate a color image with a specific sound. This can be done on the basis of the similarities between physical frequency information of both light and sound. As a first step, an input true color image is converted into hue, saturation, and intensity domains based on a color model conversion theory. In the next step, musical elements including note, octave, loudness, and duration are extracted from each domain of the HSI color model. A fundamental frequency (F0) is then extracted from both hue and intensity histograms. The loudness and duration are extracted from both intensity and saturation histograms, respectively. In experiments, the proposed system on the conversion of a color image into musical elements was implemented using standard C and Microsoft Visual C++(ver. 6.0). Through the proposed system, the extracted musical elements were synthesized to finally generate a sound source in a WAV file format. The simulation results revealed that the musical elements, which were extracted from an input RGB color image, reflected in its output sound signals.

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A Study on the Expression Methods of Space Perception by the Scene in the Exhibition Space (전시공간에서의 장면에 의한 공간지각 표현방법에 관한 연구)

  • Kim, Han-Na;Seo, Ji-Eun
    • Korean Institute of Interior Design Journal
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    • v.22 no.5
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    • pp.293-301
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    • 2013
  • The purpose of this study was to find the space perception by the scene and to analyze the characteristics in the exhibition space. The data for the analysis was collected through a questionnaire survey method. The questionnaire is composed of a scene selection on the panoramic photographs of the exhibition space. 'The 4 Rivers Cultural Center - The ARK' was selected as the subject of this survey. The results of the study are presented as follows : First, the space perception perceived imaged scenes rather than the specific elements of space. Second, the space perception was revealed through the 'Form', 'Materials', 'Light', 'Lighting', 'Furniture' and 'Media' of notable elements. Also that was perceived by forming 'Line', 'Surface' and 'Volume'. Particularly, the perception of 'Surface' was higher than 'Line' and 'Volume'. 'Surface' was perceived mostly through the 'Color'. The perception of 'Line' was positive to 'Boundary' or 'Continuous placement of the light'. In addition, the perception of 'Volume' was positive to 'The curve of the form', 'Transparent material', 'Three-dimensional elements'. Finally, The type of space perception was chosen as 'Extension', 'Center', 'Deep', 'Boundary' and 'Formative'. In this way, the results of this study will set a foundation for developing design methods to induce the space perception by the scene in the exhibition space.