WHITE BALANCE ADJUSTMENT DEVICE AND WHITE BALANCE ADJUSTMENT METHOD

    公开(公告)号:US20200374500A1

    公开(公告)日:2020-11-26

    申请号:US16966340

    申请日:2018-12-26

    Abstract: A white balance adjustment device includes a statistics acquisition portion and a correction portion. The statistics acquisition portion includes an area setting portion including a luminance area setting portion configured to set a plurality of luminance ranges, and an average value calculation portion configured to calculate an average value of color difference values of the image signal in each of the plurality of luminance ranges set by the luminance area setting portion. The correction portion includes a correction function determination portion configured to determine a correction function of the color difference values of the image signal based on the average value of the color difference values calculated by the average value calculation portion, and a color difference correction portion configured to correct the color difference values of the image signal based on the correction function determined by the correction function determination portion.

    VEHICLE-MOUNTED CAMERA SYSTEM
    3.
    发明申请

    公开(公告)号:US20170339385A1

    公开(公告)日:2017-11-23

    申请号:US15525406

    申请日:2015-09-24

    Abstract: In a vehicle-mounted camera system, an appropriate white balance correction processing according to a situation is executed to a long exposure time image and a short exposure time image shot in variously changing illumination environments. A vehicle-mounted camera system includes a vehicle-mounted camera that performs relatively long exposure time shooting and short exposure time shooting, a signal processing device (signal processing device) that executes a white balance correction processing for each of a long exposure time image and a short exposure time image, composes these images after the white balance correction processing, and generates a high dynamic range image, and a system control part (processing switch device) that obtains an illumination environment in which the vehicle is placed, and switches the white balance correction processing for the long exposure time image and the white balance correction processing for the short exposure time image according to the illumination environment.

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