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Research on Auto-Exposure Algorithm Based on Image Big Data and Information Entropy

Yunfei Bai(Tianjin Big Data Management Center)


An Auto-Exposure (AE) algorithm based on image big data and information entropy is proposed. On the basis of the traditional algorithm for automatic exposure adjustment based on image brightness, image big data analysis is introduced for the first time. Through the combination of ambient luminance evaluation and image information entropy, the dimension of information acquisition of the automatic exposure system is improved, thus improving the image effect and scene adaptability of the camera. Especially in high dynamic range scenes, compared with the traditional algorithm, the effect is significantly improved. 


AE;Big data;Information entropy;Ambient luminance

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