Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Dehazing in HSI Color Space with Color Correction

HSI 색 공간 색상 보정을 이용한 안개 제거 알고리즘

  • Received : 2012.12.17
  • Accepted : 2013.03.07
  • Published : 2013.03.30
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Abstract

The haze removal algorithm using median dark channel prior is an efficient and fast method with relatively accurate transmission estimation. However, conventional methods may produce color distortion since the method ignores the color mismatch between estimated airlight and actual airlight. In this paper, we propose a color correction with measuring color fidelity in the HSI color space. Experimental results show that the proposed algorithm gives better color correction scheme.

Median Dark Channel Prior를 이용하여 안개를 제거하는 방법은 비교적 빠르고 정확한 전달량 맵을 만들어 안개를 제거한다. 그러나 기존의 안개 제거 알고리즘은 RGB 색 공간에서 수행되기 때문에 색상의 왜곡 오류가 생긴다. 본 논문에서는 HSI 색 공간에서 안개 영상의 색상의 정확도를 측정하여 색상의 왜곡을 보정하는 방법을 제안한다. 실험을 통해 제안된 방법은 기존 방법으로 안개 제거 시 색상이 왜곡 되는 현상을 현저히 감소시켰다.

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