Picture image signal compensation device
    3.
    发明授权
    Picture image signal compensation device 失效
    图像信号补偿装置

    公开(公告)号:US4829379A

    公开(公告)日:1989-05-09

    申请号:US31936

    申请日:1987-03-27

    申请人: Takanori Takaki

    发明人: Takanori Takaki

    IPC分类号: G06T1/00 H04N1/401

    CPC分类号: H04N1/401

    摘要: A picture image signal compensation device for devices such as image scanner, facsimile and etc. comprises a whiteboard provided before manuscript in which an average value of white level signals of said whiteboard with unusually low values eliminated in obtaining the average value or an average value of white level signals of said whiteboard with an average value by the plural scannings is used as a standard datum for each of picture elements for picture image signal compensation.

    摘要翻译: 用于诸如图像扫描仪,传真机等的装置的图像信号补偿装置包括在原稿之前提供的白板,其中在获得平均值的平均值或平均值中消除了具有非常低的值的所述白板的白电平信号的平均值 使用通过多次扫描的平均值的白板的白电平信号被用作用于图像信号补偿的每个图像元素的标准数据。