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Image exposure parameter adjusting method, equipment, and image exposure parameter adjusting device

A technology in images and images, which is applied in the field of images and videos, can solve the problems of poor suppression effect of car light halo, etc., and achieve the effects of improving recognition accuracy, good suppression effect, and wide application range

Active Publication Date: 2021-01-15
ZHEJIANG DAHUA TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] This application provides an image exposure parameter adjustment method, equipment and device to solve the problem of poor suppression effect of car light halo

Method used

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  • Image exposure parameter adjusting method, equipment, and image exposure parameter adjusting device
  • Image exposure parameter adjusting method, equipment, and image exposure parameter adjusting device
  • Image exposure parameter adjusting method, equipment, and image exposure parameter adjusting device

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0025] see Figure 1 to Figure 3 , figure 1 is a schematic flowchart of an embodiment of the image exposure adjustment method of the present application; figure 2 It is a schematic flow chart of determining the strong light area in the target area in an embodiment of the image exposure adjustment method of the present application; image 3 It is a schematic flow chart of obtaining the current frame brightness value of the current frame image in...

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Abstract

The invention discloses an image exposure parameter adjusting method, equipment, and an image exposure parameter adjusting device. The image exposure adjusting method comprises the following steps: acquiring an image sequence; acquiring the image position information and the image brightness information of a current frame image; determining the area position information of a target area in the current frame image, and obtaining an area brightness statistical value of the target area according to the area position information and the image brightness information; determining a strong light areain the target area, and obtaining a corresponding strong light brightness statistical value; in combination with the brightness statistical value, the strong light brightness statistical value and the overall brightness statistical value of the target area, obtaining a current frame brightness value of the current frame image; and adjusting exposure parameters according to the current frame brightness value. According to the method, the target area is detected, the strong light area in the target area is identified, and dynamic weighting processing is performed on the target area, the stronglight area and the global brightness of the image, so that strong light in the target area is optimally suppressed, the influence of other interference light sources is eliminated, and the effect of the target area is best presented.

Description

technical field [0001] The present application belongs to the technical field of image and video, and in particular relates to an image exposure parameter adjustment method, equipment and device. Background technique [0002] Today, the field of road monitoring has higher and higher requirements for the capture effect of vehicles, but the halo of vehicle lights has always affected the improvement of image effects. The existing strong light suppression functions mainly include two types: lowering the exposure target value and increasing the brightness weight of the exposure area when the detected image has a strong light source. [0003] However, due to the low proportion of car light halos in the entire image pixel, the effects of these two methods are not ideal, and there are various light sources (street lights, other motor vehicle / non-motor vehicle lights) on the road. In this case, existing The technical effects are not ideal, and they are susceptible to interference, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235H04N5/243H04N23/76
CPCH04N23/71H04N23/76
Inventor 易荣刚曾纪琛李俊英
Owner ZHEJIANG DAHUA TECH CO LTD
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