Exposure control method, apparatus, electronic device, and computer readable storage medium

Abstract

An exposure control method, apparatus, electronic device, and computer readable storage medium, wherein the method comprises: A photometry is used to determine the target exposure of each frame of animage to be acquired, according to the target exposure of each frame of the image to be acquired and the preset sensitivity of each frame of the image to be acquired, the exposure time of each frame to be acquired is determined, As for the image to be acquired in each frame, at least one frame of an image to be acquire which is longer than that upper limit of the time length at the time of exposure, according to the upper limit of the time length, the exposure time is reduced, and the sensitivity correspondingly is increased, If the increased sensitivity is greater than the upper sensitivity limit, at least one frame of image to be acquire is set as a sensitivity upper limit, and finally exposure control is carried out according to exposure time length and sensitivity of each frame of images to be acquired, thereby not only improving dynamic range of image taken in night scene shooting mode, but also effectively suppressing noise in shooting images, and improving quality of images taken at night scene.

Description

technical field [0001] The present application relates to the field of imaging technology, and in particular to an exposure control method, device, electronic equipment, and computer-readable storage medium. Background technique [0002] With the development of smart terminal technology, the use of mobile terminal devices (such as smart phones, tablet computers, etc.) is becoming more and more popular. Most mobile terminal devices have built-in cameras, and with the enhancement of mobile terminal processing capabilities and the development of camera technology, the performance of built-in cameras is getting stronger and stronger, and people's requirements for shooting quality are getting higher and higher. At night when the shooting conditions are relatively harsh, it is also hoped to obtain high-quality imaging. [0003] At present, due to the limitation of professional level, people do not know how to set the appropriate shooting parameters according to the shooting scene...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present application proposes an exposure control method, device, electronic equipment, and computer-readable storage medium to solve the problem in the related art that when shooting a night scene, the sensitivity is generally set higher to achieve the target brightness, resulting in the High noise, resulting in low image quality technical problems

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