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http://dx.doi.org/10.7840/KICS.2011.36C.8.497

Adaptive Retinex Back-light Compensation Algorithm Using Skewness Information of Image  

Jeong, Jae-Hyun (숭실대학교 정보통신전자 공학부)
Kang, Duk-Goo (숭실대학교 정보통신전자 공학부)
Hong, Min-Cheol (숭실대학교 정보통신전자 공학부)
Abstract
This paper presents an adaptive retinex algorithm, In order to solve typical problems of retinex algorithm such as expensive computational cost, halo artifact, and color distortion, a function of skewness that represents a statistical distribution of pixels is defined to compensate contrast and color distortion. The experimental results show that the proposed algorithm leads to subjectively better performance than typical retinex algorithm, and that the proposed algorithm has the capability to reduce approximately 40% computational cost than typical retinex algorithm.
Keywords
Retinex 알고리즘;역광 보정;비대칭도;후광 현상;색신호 왜곡;
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