• 한국멀티미디어학회논문지
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• 제13권4호
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• pp.535-546
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• 2010

디지털 영상은 조명 조건과 취득 카메라의 고유 특성으로 인해 의도하지 않은 색조를 가질 수 있다. 영상에 색조가 존재하면 일관된 색 정보의 인지 및 표현이 어렵기 때문에 별도의 색 보정 작업이 필요하다. 본 논문은 color by correlation을 사용한 학습 영상 선택, 후보 회색축 영역의 추출, 핵밀도 추정, 색조 제거의 4단계로 이루어진 색조 추출 및 제거 방법을 제안한다. 후보 회색축 영역 중 불명확한 회색축 영역을 핵밀도 추정을 이용하여 제거하였다. 후보 회색축 영역의 색 성분의 분포를 조사하여 색조 유무를 판단하고, 색조가 존재할 경우 색조 제거 작업을 통하여 색 항상성을 유지 시켰다. 실험을 통해 제안하는 방법이 gray world 방법, color by correlation 방법 보다 정확한 색조 추정이 가능함을 확인하였다.

• Journal of Periodontal and Implant Science
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• 제31권3호
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• pp.501-511
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• 2001

Several indices have been developed that use bleeding and color changes as indicators of early gingival pathology. In the presence of gingivitis, vascular proliferation and reduction of keratinization owing to increase redness in gingiva. Descriptions of healthy gingiva are numerous, ranging from pale pink and coral pink to deep red and violet. This terms are not objective. Because of perception of color depends on a lot of factors such as light source, object, observer and so on. It is difficult to make an objective expression. Therefore the using of mechanical equipment is recommended to exclude these variables and observer's vias. The purpose of this study was to evaluate gingival color change after scaling & subgingival root planing. The other purpose of this study was to research the correlation of pocket depth, P.B.I. score and gingival color change. After photo-taking and storaging the image of gingival color into a computer, color change was examine with an image analysis program. Results were as follow; 1. Color of healed gingiva after scaling & subgingival root planing was significantly differ from color of inflamed gingiva(p<0.01). 2. Color of healed gingiva after scaling was similar to color of healed gingiva after subgingival root planing(p<0.05). 3. There was statistically significant correlation between color change of red component and pocket depth after scaling & subgingival root planing(p<0.01). 4. There was no correlation between color change of green, blue component and pocket depth after scaling & subgingival root planing(p<0.01). 5. There was statistically significant correlation between between color change of red component and P.B.I. score after scaling & subgingival root planing(p<0.01). 6. There was no correlation between color changes of green, blue component and P.B.I. score after scaling & subgingival root planing(p<0.01). 7. Increase of pocket depth and P.B.I. score were significantly correlated to the amount of color change(p<0.01). 8. P.B.I. score had a higher correlation with color change than pocket depth(p<0.01).

• 대한전자공학회논문지SP
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• 제44권1호
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• pp.10-16
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• 2007

본 논문에서는 색상의 공간적인 상관관계와 질감 모멘트를 이용한 내용기반 영상 검색 기법을 제안한다. 이를 위해, 색상의 공간적인 상관관계를 표현하는 새로운 색상 기술자를 제안하고, 또한 제안된 색상 기술자와 국부적인 푸리에 변환에 기반한 질감 특성을 결합한 영상 검색 방법을 제안한다. 일반적으로 색상의 공간적인 상관관계를 표현하기 위해서 컬러 코렐로그램(color correlogram)이 사용되고 있다. 하지만 컬러 코렐로그램은 중심화소에 따른 이웃한 화소들의 색상 분포를 확률적으로 잘 나타내는 장점이 있지만, 색상의 구조적인 정보를 표현하지 못하는 단점이 있다. 그러므로 본 논문에서는 색상의 분포와 구조적인 정보를 표시할 수 있는 새로운 색상 기술자를 제안한다. 제안하는 새로운 색상 기술자는 중심 화소와 이웃 화소들과의 색상 거리를 계산한 후 최소 거리의 색상과 최대 거리의 색상을 추출한 후 최소-최대 색상 쌍이 이루는 각에 대한 각각의 빈도수를 계산한다. 그런 다음, 각각의 이루는 각에 대해서 최소 거리 색상에 대한 최대 거리 색상들의 평균값과 분산값으로 구성된 새로운 기술자(min-max color correlation descriptor, MMCCD)를 생성한다. 제안한 색상 기술자를 이용하여 검색한 결과는 기존 방법들과 비교했을 경우 정확률에서 최소 5.2%에서 최대 13.21% 향상된 검색 결과를 확인할 수 있었다. 또한, 국부적인 푸리에 변환에 기반한 질감 기술자를 새로운 색상 기술자와 결합하여 특징 벡터의 크기를 절반으로 줄이면서도 새로운 색상 기술자만을 사용할 경우와 비교하여 향상된 검색 결과를 확인할 수 있었다.

• 대한가정학회지
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• 제31권2호
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• pp.177-188
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• 1993

To obtain a clear understanding of the degree of effect by the food color in diet habits, this study was a survey of the taste for food color. In this study, the term of investigation was tow months(May and Jun. 1992), the object was 10's∼50's women, and the sampling of them at random contain 100 person, respectively. The data-treatment was determinded by frequency, percentage, SD, Chi-square, Spearman's rank order correlation coefficient, Correlation, F-test as measured by SAS program for PC and statistical figures were obtained by GDAS. The results were as follows; 1. Food color in diet habits. : The relationship of food color with appetite by age group was showed to affect all age groups having more then 90%. The concern for food color by age group showed the lowst teenage having 56.7%, showing more then 70% except teenage. When chosen food, The most important characteristics of food was not age group but taste. In the correlation between characteristics, The correlation between color and form, taste and nutrition was showed affirmative. The difference test for the taste of food color and general color was shown, and the level of significance was chosen at 95%. 2. In the correlation between food color and the sense of emotion, The food color of depression and solitude was purple, the color of sadness and crying was white. But in case of only solitude, A statistical significance was shown. 3. In the investigation of taste for food color, the mean of taste degree was high in red, orange, yellow, yellowish green, green, white and low in blue, black. Their statistical significance was shown between colors but, was not shown between age groups. 4. In the relation of food color and associated with food, the colors of associated with food shown a vast difference with natural food color were blue(85.5%), purple(80.0%), pink(41.7%) and yellow(40.0%) but, A red color was not shown the error rate of associated with food color at all. Almost all kinds of associated with food were fruits and vegetables.

• 한국식품영양과학회지
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• 제23권2호
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• pp.274-278
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• 1994

Correlation between pH and color of Kimchi during fermentation was investigated to visually evaluate the fermentation degree of Chinese cabbage Kimchi. Color "a" and 'H" values in the white part, "a", "H" and "C" values in the green part of the Kimchi showed a high correlation with pH, respectively. "a" and "H" values of Kimchi juice. "L" and "V" values of red pepper attached to kimchi had a high correlation with pH. The color of the white part was light greenish white in unripended Kimchi, but changed to redish in ripended kimchi. Green part changed from light green to redish green as ripening. Red pepper powder attached to kimchi showed redish color in unripening, but changed to yellowish re din over ripening.

• 한국의류학회지
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• 제11권1호
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• pp.29-42
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• 1987

This study was an attempt to survey, the relationships between women's values and preference in clothing design. For the measurement of values scale was to relect the theoretical, economic aesthetic, social. political and religious values explained by Allport-vernon- Lindzey. The preference rate in clothing design consisted of 50 items and 3 factors including color, form and texture. The questionnaire were administered to a sample of women (between college students and adult) who lined in Seoul, Korea. The date for 910 respondents were analyzed by person's carrelation coefficient, to-test and $x^2$ test. Through this study, the followings were founds; 1. Aesthetic value was the mast important of female college students values and economic value was the most important of adult's values. 2. There were significant relation between values and the preference for clothing form in line and style; 1) In line preference, adult women indicated negative correlation with religious values but positive correlation with aesthetic and political values. 2) In style preference, adult women indicated negative correlation with economic values positive correlation with social values, for female college students indicated positive correlation with aesthetic social and political values. 3. There were significant relation between values and preference for texture in touch, thickness, weight, light and luster; 1) In relationship between texture and values, adult women indicated touchness preference negative correlation with theoretical and religious values, for female college students indicated positive correlation with aesthetic and social values. 2) In thickness preference adult women indicated negative correlation with theoretical values but female college students indicated positive correlation with political values. 3) In weight preference, adult women indicated negative correlation with theoretical values. But female college students indicated positive correlation with religious values. 4) In brightness preference, only adult women indicated positive correlation with social values, negative correlation with economic values. In transparency preference, adult women indicated positive correlation with aesthetic values, negative correlation with religious values. 4. There were significant correlation among color and economic, aesthetic; political and religious values, that is, evacuation and economic political values in adult women there were positive correlation with religious values in female students. 1) In chroma only adult women indicated negative correlation with religious values. In warm and cold, positive correlation with economic values in both of them. 2) In coloration, adult women like a complement color indicated negative correlation with aesthetic values, but positive correlation with political values. 5. There were significant differences in the preference of clothing design between female college students and adult women; correlationship with color variables. Evacuation, both of them indicated negative correlation with chroma positive correlation with warm and cold and coloration. In chroma, adult women indicated negative correlation with coloration and warm and cold, for female students indicated negative correlation with coloration. 6. Comparison with clothing preference: 1) In color preference, adult women liked the most white, brown, blue and black in sequence. Female college students liked the most white, also the next is blue and pink. 2) Clothing design preference, there was significant difference in warm and cold and coloration, adult women more liked than female students. In shape of clothing, both of them indicated significant difference in line and style, female students more liked sporty style. In texture, adult women more liked soft thin light weight and bright. 3) In silhouette preference, the most is H-line, female college students more liked.

• 디자인학연구
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• 16호
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• pp.77-86
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• 1996

한국인의 색채감정에 맞는 효율적인 색채계획이 이루어지기 위해서는, 먼저 한국인의 색채감정의 고유성 확인이 필요하다고 생각된다. 이에 인국(隣國)인 일본과의 비교를 통한 한국인의 색채 기호의 고유성을 확인하기 위하여, PCCS 에 대한 한${\cdot}$일 대학생의 색채기호를 조사하였다. 조사결과는 다음과 같다. 1. 한${\cdot}$일 양국의 대학생이 가장 기호하는 색은 비비드 블루이고, 가장 혐오하는 색은 그레이쉬 브라운이다. 2. 한국 대학생이 가장 기호하는 색은 퍼프 블루이고, 일본 대학생이 가장 기호하는 색상은 블루이다. 한${\cdot}$일 양국의 대학생이 가장 혐오하는 색상은 옐로우 레드 이다. 3. 한${\cdot}$일 양국의 대학생이 가장 기호하는 톤은 비비드 이고, 가장 혐오하는 톤은 그레이쉬 이다. 4. 한${\cdot}$일간의 색채기호의 상관관계를 비교해 보면, 색상보다는 톤에 있어서의 강한 상관관계를 나타내었다.

• 한국식품영양학회지
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• 제11권2호
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• pp.221-227
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• 1998

본 연구는 냉장우육의 수분함량, 상대습도, pH, 색도 및 색소의 상관관계를 검토하였다. 등심과 사태의 표면 및 내부의 수분함량과 상대습도는 저장 중 일률적인 변화를 보이지 않았고, pH는 저장기간에 따라 높아지는 경향이었다. L값은 저장말기로 갈수록 높아졌고, b값은 표면이 내부보다 낮았다. 등심과 사태의 표면 및 내부에 공통적으로 myoglobin과 metmyoglobin이 음의 상관관계가 있고, 사태의 표면과 내부는 myoglobin과 L값이 양의 상관관계에 있으며, Myoglobin과 oxymyoglobin이 음의 상관관계가 있었다. 그러나 수분함량, 상대습도 및 pH는 색의 변화와 일률적인 상관관계는 없었다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 학술대회 논문집 정보 및 제어부문
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• pp.9-11
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• 2005

We propose a new content-based image retrieval using a block color co-occurrence matrix (BCCM) and pattern correlogram. In the proposed method, the color feature vectors are extracted by using BCCM that represents the probability of the co-occurrence of two mean colors within blocks. Also the pattern feature vectors are extracted by using pattern correlogram which is combined with spatial correlation of pattern. In the proposed pattern correlogram method. after block-divided image is classified into 48 patterns with respect to the change of the RGB color of the image, joint probability between the same pattern from the surrounding blocks existing at the fixed distance and the center pattern is calculated. Experimental results show that the proposed method can outperform the conventional methods as regards the precision and the size of the feature vector dimension.

• 방송공학회논문지
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• 제16권6호
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• pp.962-968
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• 2011

기존의 무손실 압축은 일반적으로 채널간의 상관관계를 고려하지 않고 각각의 채널을 따로 압축하였다. 채널 간 상관관계를 이용하는 경우도 있으나 이들은 위성/항공 영상과 같은 경우에 제한된 것으로서 일반적인 이미지에 대해서는 만족할만한 성능을 얻지 못하였다. 본 논문에서는 컬러 이미지가 갖는 채널 간의 상관관계를 이용하여 무손실 압축의 성능을 향상시키는 방법을 제안하였다. 제안된 방법에서는 채널 간 상관관계를 표현할 수 있도록 하기 위하여, 비대칭 샘플링을 통해 주어진 영상의 모자이크 이미지를 구성하여 압축을 수행하였고, 압축된 모자이크 이미지의 정보를 이용해서 샘플링되지 않은 나머지 이미지를 예측하여 압축할 정보의 양을 감소시켰다. 제안된 방법은 압축 성능을 평가하는데 일반적으로 사용되는 데이터들에 대해서 채널 간 상관관계를 이용하지 않는 방법에 대해 35%, 채널 간 상관관계를 이용한 기존 방법에 대해 10%의 성능 개선을 보인다.