Study of automatic exposure algorithm based on HD ip camera

The proposed automatic exposure algorithm calculated the image´s average brightness based on the uniform partion with weight, then controlled shutter and gain by a gradual approximation with different adjusting step-size and achieved a wide range control of automatic exposure based on high definition ip camera. For high definition ip camera´s different scene, the results based on TI´s davinci platform shows that the proposed algorithm reached good auto exposure effect in normal lit, back lit and excessive front lit. At the same time, algorithm´s complexity is reduced and its efficiency is improved.