Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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An Analysis of Computerized Implementation of Film Colored Overlays Based on Optical Characteristics and User Preference

필름 색 오버레이의 광학적 특성과 사용자 선택을 반영한 컴퓨터 구현성 분석

  • Jang, Young-Gun (Department of Computer & Information Engineering, Chongju University) ;
  • Park, Chan-Khon (Department of Computer & Information Engineering, Chongju University)
  • Received : 2013.10.02
  • Accepted : 2013.11.27
  • Published : 2014.01.31
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Abstract

The feasibility of a virtual colored overlay is based on constraints of computer and user preference and it is evaluated for people with Scotopic Sensitivity Syndrome. We draw ${\alpha}$ and chromaticities of virtual colored overlay which will be implemented on IT devices by measuring optical characteristics of 2 representative film overlays and simulating them. We analyzed the influence of two illuminating conditions on the virtual colored overlay. We find that it is possible to get the multiple combinations of alpha and source RGB values to match a chromaticity which is presented in CIE-Luv color space under ideal white condition of display, a user can select one among them with respect to clarity and comfort. Under 100 lx difference of illumination conditions, the changes of chromaticities are negligible, but luminances are increased $37.8cd/m^2$ average(std 2.006) at high illumination condition.

광과민성 증후군자를 위한 가상 색 오버레이의 구현성을 검토하고 요구사항을 도출하였다. 대표적 필름 오버레이 2 종류의 광학적 특성을 측정하고, 그 특성을 구현하여 컴퓨터 및 모바일 IT기기에 구현할 ${\alpha}$값과 원 색도를 도출하였다. 주변조명을 암실환경과 명실환경으로 구분하여 주변조명이 가상 색 오버레이 색도에 미치는 영향을 분석하였다. 하나의 원 색도(CIE Luv)를 만족하는 ${\alpha}$와 RGB값의 조합이 다수 존재하는 것을 발견하였고, 사용자는 눈의 편안함과 선명도를 기준으로 한 조합을 선택할 수 있다. 주변조명은 100 lx차이에서 디스플레이 장치의 색도변화는 거의 없으나, 밝기 차이가 평균 $37.8395cd/m^2$(표준편차 2.0059) 발생하였다.

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