Exposure control method and device and electronic equipment

Abstract

The embodiment of the invention provides an exposure control method and device and electronic equipment. The method comprises the following steps: acquiring an image acquired by image acquisition equipment, and first exposure time, a first aperture value and a first gain value when the image acquisition equipment acquires the image; calculating the brightness of the image, and recording the brightness as first brightness; calculating to obtain second exposure time based on a first function, the first brightness, preset target brightness and the first exposure time, the first function being a function formula taking the image brightness and the exposure time as parameters; and configuring the image acquisition equipment based on the first gain value, the second exposure time and the first aperture value, so that the brightness of the image acquired by the image acquisition equipment subsequently reaches the target brightness, thereby reducing the adjustment times of the exposure parameters of the image acquisition equipment and shortening the exposure adjustment time.

Description

technical field [0001] The present invention relates to the technical field of exposure control, in particular to an exposure control method, device and electronic equipment. Background technique [0002] In the related automatic exposure process, when the aperture is fixed, because the relationship between the current environment brightness of the image acquisition device and other exposure parameters of the image acquisition device cannot be accurately determined, the parameter values ​​of other exposure parameters are adjusted. The current step size is calculated based on experience, where other included parameters may include shutter and gain. [0003] Among them, in the process of calculating the current step size based on experience, since the change degree of the brightness of the image caused by the step size cannot be predicted, in order to avoid the brightness of the image being oscillated due to the step size being too large, the determined current step size is i...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that in the above-mentioned related automatic exposure process, due to the small step size when adjusting the parameter values ​​of other exposure parameters, it is necessary to adjust the parameter values ​​of other exposure parameters several times to make the collected image reach the target brightness, resulting in Long exposure adjustment time, poor user experience

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