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Exposure parameter adjusting method, device and readable medium

A technique for adjusting exposure parameters and direction, which is applied in the field of image processing and can solve problems such as bright and dark changes and oscillations in images

Active Publication Date: 2018-08-17
BEIJING TUSEN WEILAI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adjustment of exposure parameters is an important factor to ensure the image quality, and the existing AE exposure parameter adjustment method is to directly adjust the exposure parameters according to the exposure evaluation value of the current frame image, but this will cause the oscillation phenomenon of repeated bright and dark changes in the image

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  • Exposure parameter adjusting method, device and readable medium
  • Exposure parameter adjusting method, device and readable medium
  • Exposure parameter adjusting method, device and readable medium

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Embodiment Construction

[0063] The exposure parameter adjustment method, device and readable medium provided by the embodiments of the present invention are used to prevent oscillation and ensure output image quality when the imaging device adopts an automatic exposure algorithm.

[0064] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention, and in the absence of conflict, the present invention The embodiments and the features in the embodiments can be combined with each other.

[0065] In order to facilitate understanding of the present invention, in the technical terms involved in the present invention:

[0066] 1. Exposure time: (Exposure Time, ET) refers to the time interval from opening to closing of the shutter in order to project light onto the...

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Abstract

The invention discloses an exposure parameter adjusting method, device and readable medium, and belong to the technical field of the image processing. The method provided by the invention comprises the following steps: acquiring an exposure evaluation value of the current frame image, and determining an exposure state of the current frame image according to the exposure evaluation value; acquiringthe exposure state of the former frame image, the exposure parameter adjusted based on the exposure state of the former frame image, and an adjusting direction; determining the exposure parameter adjusting type according to the exposure state of the current frame image and the exposure state of the former frame image; and adjusting the current exposure parameter according to the exposure parameter adjusting type, the exposure parameter adjusted based on the exposure state of the former frame image, and the adjusting direction. The current exposure parameter is adjusted by using the above method, the oscillation phenomenon is effectively prevented in comparison with the way of adjusting the exposure parameter only through the exposure state of the current frame image in the prior art, andthe image quality is further guaranteed at the same time.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an exposure parameter adjustment method, device and readable medium. Background technique [0002] With the improvement of human living standards and industrial modernization, imaging devices (such as cameras) are increasingly used in various industries in daily life, such as consumer photography, industrial machine vision, quality inspection and automatic driving, etc. Wait. Some algorithms are built into the camera to enable the system to automatically perform feature extraction and recognition on images, such as face recognition, industrial defect detection and security monitoring, etc. At this point, image quality is the most important foundation. If the quality of the original image output by the camera is not good (such as blurry or insufficient detail), it will be difficult for the back-end system to recognize it. [0003] To solve this problem, the Aut...

Claims

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Application Information

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IPC IPC(8): H04N5/235
CPCH04N23/73
Inventor 刘淼孙杰
Owner BEIJING TUSEN WEILAI TECH CO LTD
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