Image reading apparatus, image reading method, and storage medium
    1.
    发明授权
    Image reading apparatus, image reading method, and storage medium 失效
    图像读取装置,图像读取方法和存储介质

    公开(公告)号:US06657748B1

    公开(公告)日:2003-12-02

    申请号:US09318056

    申请日:1999-05-25

    IPC分类号: H04N140

    CPC分类号: H04N1/56 H04N1/401

    摘要: In an image reading apparatus, required capacity of a memory for storing shading correction data is reduced, as well as the width of a standard white board for generating the shading correction data is shortened. These are achieved by sequentially generating the shading correction data corresponding to respective R, G and B components, independently, to share a data storage area necessary for generating shading correction data, further, by reversing a scanning direction when scanning a standard white board while illuminating it with light of the respective color components on generating the shading correction data.

    摘要翻译: 在图像读取装置中,减少用于存储阴影校正数据的存储器的所需容量,缩短用于产生阴影校正数据的标准白板的宽度。 这些是通过独立地依次产生对应于各自的R,G和B分量的阴影校正数据来实现的,以共享当生成阴影校正数据所需的数据存储区域时,进一步通过在扫描标准白板的同时反转扫描方向同时照亮 在产生阴影校正数据时,利用各颜色分量的光。

    Image reading method and apparatus
    2.
    发明授权
    Image reading method and apparatus 失效
    图像读取方法和装置

    公开(公告)号:US5825512A

    公开(公告)日:1998-10-20

    申请号:US381341

    申请日:1995-01-31

    申请人: Hisao Okita

    发明人: Hisao Okita

    摘要: An image reading method for photo-electrically reading a document sheet image by a reader by relatively moving the document sheet and the reader comprises a first movement step for relatively moving the document sheet and the reader at a first speed to read an image of the document sheet, and a second movement step for relatively moving the document sheet and the reader at a second speed lower than the first speed for the interruption of the reading before the completion of the reading of the image of the document sheet. Also provided is a stop step for stopping the relative movement at the second speed of the document sheet and the reader.

    摘要翻译: 用于通过相对移动文档片和读取器由阅读器对电子文档片材图像进行光电读取的图像读取方法包括用于以第一速度相对移动文件片和读取器以读取文档的图像的第一移动步骤 以及第二移动步骤,用于在完成阅读文档片材的图像之前以低于第一速度的第二速度相对移动文档片和读取器用于中断读取。 还提供了停止文件夹和读取器的第二速度的相对移动的停止步骤。