Exposure control method, device and electronic equipment

Abstract

An embodiment of the present invention provides an exposure control method, device, and electronic equipment. The method includes: acquiring an image captured by an image acquisition device, and a first exposure time, a first aperture value, and a first gain when the image acquisition device acquires an image value; calculate the brightness of the image, which is recorded as the first brightness; based on the first function, the first brightness, the preset target brightness and the first exposure time, calculate the second exposure time, wherein, the first function is: by image brightness and exposure time as parameters; based on the first gain value, the second exposure time and the first aperture value, the image acquisition device is configured so that the brightness of the image subsequently collected by the image acquisition device reaches the target brightness, so as to reduce the image The number of adjustments of the exposure parameters of the acquisition device is shortened to shorten 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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