Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2000.11d
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- Pages.9-12
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- 2000
Image illumination Estimation Using Surface Reflectance
물체 표면 반사를 이용한 영상의 광원 추정
Abstract
This paper proposes an improved image illumination estimation method based on the conventional color constancy algorithm. The most important process of color constancy algorithm is the estimation of the spectral distributions of illuminant of an input image. To estimate of the spectral distributions of illuminant of an input image, we use the brightest pixel values and the values of surface reflectance of an input image using a principal component analysis of the given munsell chips. We estimate a CIE tristimulus values of an input image using the estimated .spectral distribution of illuminant and recover an image by scaling it regularity. From the experimental results, the proposed method was effective in estimating the image illumination
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