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

A technology of exposure control and exposure, applied in the field of imaging, can solve the problems of low imaging image quality, large imaging image noise, and high sensitivity, and achieve the effects of suppressing noise, improving quality, and improving dynamic range

Active Publication Date: 2020-07-10
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Exposure control method, device, electronic device, and computer-readable storage medium
  • Exposure control method, device, electronic device, and computer-readable storage medium
  • Exposure control method, device, electronic device, and computer-readable storage medium

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Embodiment Construction

[0032] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0033] In the related art, for a mobile terminal device with a relatively small aperture, when shooting an image in a night scene, since the light is relatively dark, if the brightness is increased by increasing the exposure time of the image to be collected, there may be smearing in the captured image due to shaking; If the sensitivity value is increased to obtain an image, noise will be introduced during the shooting process, resulting in a blurred image. As a result, images captured in night scenes not only have low dynam...

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Abstract

The present application proposes an exposure control method, device, electronic equipment, and computer-readable storage medium, wherein the method includes: measuring light to determine the target exposure of each frame of image to be collected, and according to the target exposure of each frame of image to be collected and The preset sensitivity of each frame of images to be collected determines the exposure time of each frame of images to be collected, and for each frame of images to be collected, at least one frame of images to be collected whose exposure time is longer than the upper limit of the time length is reduced according to the upper limit of the time length Exposure time, and the corresponding increase in sensitivity, if the increased sensitivity is greater than the upper limit of sensitivity, set the sensitivity of at least one frame of the image to be collected as the upper limit of sensitivity, and finally according to the exposure time and sensitivity of each frame of image to be collected Exposure control not only improves the dynamic range of images captured in night scene shooting mode, but also effectively suppresses the noise in the captured images, improving the quality of night scene images.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235
CPCH04N23/71H04N23/73
Inventor 张弓
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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