Exposure control method, device and electronic equipment

Abstract

Embodiments of the present invention provide an exposure control method, device, and electronic equipment. The method includes: acquiring a target scene image to be exposed; determining the target brightness corresponding to the dark area of ​​the target scene image, where the target brightness corresponds to the target pixel number brightness, the number of target pixels is the maximum number of pixels among the number of pixels corresponding to each brightness in the dark area of ​​the image; based on the relationship between the target brightness and the endpoint value of the preset brightness range, determine the brightness range corresponding to the target scene image ; Based on the determined brightness interval, determine the second average brightness, the second average brightness is after the target scene image is exposed, the average brightness of the target scene image; adjust the brightness of the dark area of ​​the image until the average brightness of the target scene image is the first 2. When the average brightness is reached, the exposure of the target scene image is completed. Through the technical solutions provided by the embodiments of the present invention, the scene adaptability of image exposure can be enhanced.

Description

technical field [0001] The invention relates to the technical field of camera automatic exposure, in particular to an exposure control method, device and electronic equipment. Background technique [0002] With the continuous development of science and technology, more and more electronic devices have a camera function, for example, smart phones, smart monitoring devices and other devices can take pictures. [0003] At present, in order to ensure the exposure effect of the captured photos, when the electronic device exposes the image, the average brightness of the image is usually controlled within a specific brightness range, and the specific brightness range is usually fixed. [0004] The scene adaptability of this image exposure method is poor, specifically, in some scenes, the effect of the photo taken by the electronic device is poor. [0005] For example, if figure 1 As shown, for a high-contrast scene, there are both bright areas and dark areas in the scene. When t...

AI Technical Summary

Problems solved by technology

When the electronic device is exposed, it is necessary to reduce the average brightness of the scene image, so as to control the average brightness of the captured scene image in this specific brightness range, resulting in the image brightness of the dark area (indoor) in the captured scene image. Too low, indoor details are not clear

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