The invention relates to an image brightness adjusting method and device, an electronic device and a storage medium, and the method comprises the steps: determining a brightness mode of a region of interest according to the brightness of the region of interest in a to-be-detected image and the global brightness; determining a main frame to-be-detected image from the long frame to-be-detected image and the short frame to-be-detected image according to the determined brightness mode; and adjusting the overall exposure parameter of the to-be-detected image based on the brightness of the main body frame region of interest of the main body frame to-be-detected image, so that the brightness of the main body frame region of interest and the global brightness of the non-main body frame to-be-detected image are both within a preset brightness range, and obtaining a target image. According to the method, dynamic adjustment of the exposure parameters can be realized based on different brightness modes, so that the license plate brightness and the image global brightness are both in a moderate brightness range, and the image global display effect is improved while the license plate display effect is ensured.

    本申请涉及一种图像亮度调整方法、装置、电子装置和存储介质,其中,该图像亮度调整方法包括:根据待检测图像中感兴趣区域的亮度与全局亮度,确定感兴趣区域的亮度模式;根据确定的亮度模式,从长帧待检测图像和短帧待检测图像中确定主体帧待检测图像;基于主体帧待检测图像的主体帧感兴趣区域的亮度对待检测图像的整体曝光参数进行调整,以使主体帧感兴趣区域的亮度和非主体帧待检测图像的全局亮度均位于预设的亮度范围内,得到目标图像。其能够基于不同亮度模式实现对曝光参数的动态调整,从而兼顾车牌亮度和图像全局亮度,使二者均位于适中的亮度范围内,进而在保证车牌显示效果的同时,提升图像全局的显示效果。


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    Title :

    Image brightness adjustment method and device, electronic device and storage medium


    Additional title:

    图像亮度调整方法、装置、电子装置和存储介质


    Contributors:
    YI RONGGANG (author) / LI JUNYING (author) / LI XIAOTIAN (author)

    Publication date :

    2023-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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