Image dynamic range compression using region-adaptive gamma correction

영역 적응적 감마 보정을 이용한 영상의 다이내믹 레인지 압축

This paper presents a new dynamic range compression method using region-adaptive gamma correction. Gamma corrections with different gamma coefficients are first applied to the observed image to generate several candidate images. Then, the proposed method produces the result image by adequately combining them according to the weight function based on local variances. Experimental results demonstrate that the proposed method significantly enhances image quality by bringing out the details not only in dark region but also in bright region.