多光源非均匀光照场景的颜色恒常性

针对多光源非均匀光照场景,提出了一种新的颜色恒常性解决方法.首先将场景图像划分成若干较小区域,分别对各区域光源颜色进行估计,然后根据各区域对场景光源颜色的贡献合并为一种复合光源颜色作为场景光源颜色的近似估计,最后通过对角模型重构图像.实验结果表明,扩展的方法能够更好地解决多光源非均匀光照等场景的颜色恒常性问题.

Color constancy for scenes of non-uniform spectral power distribution of multiple light sources

This paper proposes a new method to solve the problem of color constancy in the scenarios of non-uniform spectral power distribution of multiple light sources.First,the image is divided into several smaller patch;then according to the regional contribution to the color of the scene illuminant,it is combined into a composite light source color as the color of the scene illuminant estimation of myopia;finally the image is restructured the diagonal model.The quantitative experiments show that the proposed method can better solve the non-uniform light illumination scene.