Journal of KIISE:Software and Applications (한국정보과학회논문지:소프트웨어및응용)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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Color Transformation of Images based on User Preference

사용자 취향을 반영한 영상의 색변환

  • 우혜윤 (가톨릭대학교 미디어공학과) ;
  • 강행봉 (가톨릭대학교 미디어공학과)
  • Published : 2009.12.15
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Abstract

Color affects people in their various combinations of hue, saturation and value. On the other hand, people may feel different emotion from the same color. If we can introduce these characteristics of color and people's emotion about color to emotion-based digital technologies and their contents, we can effectively draw users' interest and immersion to the contents. In this paper, we will show how people feel about color and present a method of image coloring that reflects the user's preference. First, we define basic templates that reflect the relationship between color and emotion, and then perform an image coloring. To reflect user's preference, we compute weights for hue, saturation and value through the experiments on each subject's preference about hue, saturation and value. The image coloring for each subject's taste will be drawn by updating the weights of hue, saturation and value. Through the results of experiments and surveys, we found that people were more satisfied with the transformation of the templates which reflected user's preference than the one that did not.

색은 일반적으로 주요 속성인 색상, 채도, 명도가 다양한 수치로 결합되어 사람의 감정에 영향을 미친다. 반면, 사람은 같은 색이더라도 개인에 따라 다양한 감정을 느낀다. 이러한 색과 감정의 특성을 감성 기반의 디지털 기술과 컨텐츠에 활용하면, 상호작용과 함께 사용자의 흥미와 몰입을 이끌어 낼 수 있다. 이를 위해, 본 논문은 일반적으로 사람들이 어떤 색에 대해 어떤 감정을 느끼는지를 정의한 다음, 개인의 취향을 최대한 반영한 색변환 방법을 제안한다. 먼저, 색과 감정의 관계를 템플릿으로 정의한 후, 색변환을 수행한다. 이때, 색에 대한 개개인의 감정은 다르기 때문에, 각 템플릿은 모든 사람에게 동일하게 적용되지 않고, 개인의 취향에 따라 다르게 적용되어야 한다. 이를 위해, 사용자의 색상, 채도 명도에 대한 선호도를 학습을 통해 가중치를 얻어 적용함으로서 각 사용자에게 적합한 변환을 수행한다. 실험과 설문조사 결과, 템플릿을 동일하게 적용하는 것보다 사용자 취향을 반영한 변환이 사용자의 감성을 만족시켜주었음을 알 수 있었다.

Keywords

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