The invention discloses an image enhancement method, which comprises the steps of determining a target sub-block clipping number threshold in a CLAHE algorithm according to a central sub-block image of a central region of a night ponding image and a target sub-block image of the night ponding image, the target sub-block image being obtained by dividing the night ponding image according to a predetermined division rule; according to a CLAHE algorithm, performing contrast-limited adaptive histogram equalization processing on each target sub-block image to obtain an enhanced sub-image; and splicing and combining the enhanced sub-images of all the target sub-block images based on a predetermined division rule to obtain an enhanced image. The method can adapt to the situation that the night ponding image changes continuously in the automobile driving process, can obtain the image with the stable enhancement effect, and facilitates the position recognition of the subsequent ponding area. The invention further discloses an automobile headlamp angle adjusting method based on the night ponding image.

    本发明公开了一种图像增强方法,包括:根据夜间积水图像中心区域的中心子块图像以及夜间积水图像的目标子块图像确定CLAHE算法中的目标子块剪裁数量阈值,其中目标子块图像为将夜间积水图像按照预定划分规则划分后获得;根据CLAHE算法,对每个目标子块图像进行限制对比度自适应直方图均衡化处理,得到增强子图像;基于预定划分规则,对所有目标子块图像的增强子图像进行拼接组合,得到增强图像。本方法可以适应汽车行驶过程中夜间积水图像不断变化的情况,能获得稳定增强效果的图片,利于后续积水区域的位置识别。本发明还公开了一种基于夜间积水图像的汽车前照灯角度调整方法。


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    Title :

    Image enhancement method and automobile headlamp angle adjustment method based on image


    Additional title:

    图像增强方法及基于图像的汽车前照灯角度调整方法


    Contributors:
    WU YOUYU (author) / XU YUJIAN (author) / YUAN WENLONG (author) / JIANG LINCHENG (author) / CHEN YU (author) / WANG XINPENG (author)

    Publication date :

    2023-10-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06V / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL



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