Photographing exposure control method and device, imaging equipment and electronic equipment

Abstract

The invention provides a photographing exposure control method, a photographing exposure control device, imaging equipment and electronic equipment. The method is applied to the imaging equipment thatcomprises a pixel unit array composed of multiple light-sensitive pixels. The method comprises the steps of controlling each light-sensitive pixel in a pixel unit array to measure an environment brightness value; determining the environment brightness value corresponding to each area of the pixel unit array according to a measurement result of the environment brightness value; and controlling thelight-sensitive pixels in each area to adopt a corresponding exposure mode for photographing according to the measured environment brightness value of each area. According to the method, the pixel unit arrays are subjected to partitioned exposure treatment, that is to say the light-sensitive pixels in each area are controlled to adopt the proper exposure mode for photographing according to the measured environment brightness value of each area, so that the signal to noise ratio of the relatively dark area in the image can be improved, the good target image with relatively good definition is acquired, and the photographing experience of the user is improved.

Description

technical field [0001] The present application relates to the technical field of electronic equipment, and in particular to a shooting exposure control method, device, imaging equipment and electronic equipment. Background technique [0002] With the continuous development of terminal technology, more and more users use electronic devices to capture images. In a dark environment, when the user uses the front camera of the electronic device to take a selfie, since the user is between the light source and the electronic device, insufficient exposure of the face may easily occur. If the brightness of the face is increased by adjusting the exposure, the background area will be overexposed, and the scene of the selfie cannot even be seen clearly. [0003] In the prior art, the high dynamic range (HDR) technology is used to control the pixel array to sequentially expose and output multi-frame images with different exposure times, and then fuse the multi-frame images to calculate ...

AI Technical Summary

Problems solved by technology

[0005] This application proposes a shooting exposure control method, device, imaging equipment and electronic equipment, which are used to solve the technical problems of more image noise and poor clarity and contrast in the prior art

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