为了克服传统方法色温估计的局限性，提出了一种基于图像熵的灰度加权算法，根据得到的加权灰度值计算R、G、B三通道的增益值，从而达到白平衡校正效果，并采用Imatest软件对结果进行测评。实验结果表明，适用于大场景范围的自动白平衡算法效果较好，达到预期要求。%In order to overcome the limitations of traditional methods in Color temperature estimation, a gray weighted method based on image entropy was presented, the R,G,B three-channel gain values were calculated based on the weighted gray value, achieving the white balance correction effect, and Imatest software was used to assess the results. The results showed that the Automatic White Balance Algorithm for Large-scale Scenes has good effect while meeting the desired requirements.
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