The embodiment of the invention provides an exposure value updating method and device, electronic equipment and a storage medium, and relates to the technical field of image acquisition, and the method comprises the steps: extracting the brightness value and color of a license plate in an acquired vehicle image; according to the time sequence of collecting the vehicle images and the extracted colors of the license plates, the brightness values of the extracted license plates are stored, brightness groups are obtained, and each brightness group comprises the brightness values of the corresponding license plates with the same time sequence and different colors; determining the weight of each brightness value in a target brightness group to which the extracted brightness value belongs according to the dispersion degree of the brightness value in each brightness group; determining an expected brightness value of the license plate in the collected vehicle image according to the extracted brightness value and the determined weight; and taking the expected brightness value as the current exposure value to carry out vehicle image acquisition. By applying the scheme provided by the embodiment of the invention, the quality of the acquired image can be improved.

    本申请实施例提供了一种曝光值更新方法、装置、电子设备及存储介质,涉及图像采集技术领域,包括:提取所采集的车辆图像中车牌的亮度值和颜色;按照采集车辆图像的时间顺序、以及提取的车牌的颜色,存储提取的车牌的亮度值,得到亮度组,每一亮度组中包含:对应的时间顺序相同、颜色不同的车牌的亮度值;根据各个亮度组内亮度值的离散程度,确定所提取的亮度值所属的目标亮度组内各个亮度值的权重;根据所提取的亮度值及所确定的权重,确定所采集的车辆图像中车牌的期望亮度值;将期望亮度值作为当前曝光值进行车辆图像采集。应用本申请实施例提供的方案可以提高所采集的图像的质量。


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    Title :

    Exposure value updating method and device, electronic equipment and storage medium


    Additional title:

    一种曝光值更新方法、装置、电子设备及存储介质


    Contributors:
    LIU QIANG (author) / YU JIANNAN (author) / XU ZHONGJIE (author)

    Publication date :

    2023-08-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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