The model representing an outdoor image as a linear combination of sun basis image and sky basis image is first adopted.
首先使用上述图像分解模型，将图像表示成太阳光和天空光基图像的线性组合。
Exploiting the characteristics of the sun basis image, the computation of sunlight and skylight of every frames is finally reduced to a minimization problem which can be solved in real time.
然后，通过对太阳光基图像的特点进行分析，将太阳光和天空光入射光强的求解归结为一个可实时求解的能量最小化问题。
Exploiting the characteristics of the sun basis image, the computation of sunlight and skylight of every frames is finally reduced to a minimization problem which can be solved in real time.
然后，通过对太阳光基图像的特点进行分析，将太阳光和天空光入射光强的求解归结为一个可实时求解的能量最小化问题。
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