Method and apparatus for image reading capable of obtaining adequate white reference data for shading correction
    1.
    发明授权
    Method and apparatus for image reading capable of obtaining adequate white reference data for shading correction 失效
    用于图像读取的方法和装置,其能够获得用于阴影校正的足够的白色参考数据

    公开(公告)号:US07525692B2

    公开(公告)日:2009-04-28

    申请号:US10798570

    申请日:2004-03-12

    申请人: Kazuhiko Nakaya

    发明人: Kazuhiko Nakaya

    IPC分类号: H04N1/04

    CPC分类号: H04N1/4076 H04N2201/044

    摘要: An image reading method and apparatus. A reader is mounted and reads one side of an original document being conveyed at a reading position. A contact glass includes a surface contacting the original document. A reference is disposed at a side of the contact glass opposite to the surface and movable between the reading position and a standby position. The reference includes a surface facing the reader which has a predetermined color for providing shading data used for a shading correction. A carrier moves the reference to the reading position. The reader obtains the shading data by reading the predetermined color on the surface of the reference at the reading position.

    摘要翻译: 一种图像读取方法和装置。 读取器被安装并且读取在读取位置被传送的原始文档的一侧。 接触玻璃包括接触原始文件的表面。 参考设置在接触玻璃的与表面相反的一侧并且可在读取位置和待机位置之间移动。 参考文献包括面向读取器的表面,其具有用于提供用于阴影校正的阴影数据的预定颜色。 载体将参考值移动到读取位置。 读取器通过在读取位置读取基准表面上的预定颜色来获得阴影数据。