5.
    发明专利
    未知

    公开(公告)号:DE69427497D1

    公开(公告)日:2001-07-26

    申请号:DE69427497

    申请日:1994-01-19

    Applicant: CANON KK

    Abstract: There is disclosed an apparatus and a method for processing images, with which a specific original can be discriminated from others with a high accuracy. An image processing apparatus according to the present invention comprises an input unit (210) for producing visible information and invisible information, a detecting unit for detecting a line image portion of an image represented by the visible information, and a discriminating unit (3) for discriminating an original having a predetermined pattern in accordance with the detection by the detecting unit and the visible information.

    6.
    发明专利
    未知

    公开(公告)号:DE69033372T2

    公开(公告)日:2000-05-11

    申请号:DE69033372

    申请日:1990-04-26

    Applicant: CANON KK

    Abstract: Image processing apparatus comprising an input means to input the data of objective pixel, calculation means to obtain average density value in the specified region and quantization means to quantize the data of the objective pixel based on the said average density value wherein the entire image including its edge is effectively binalized and in the serial scanning of data, continuity is not lost at the connection of scans, thus enabling to obtain the image with excellent gradation and resolution.

    7.
    发明专利
    未知

    公开(公告)号:DE69033372D1

    公开(公告)日:2000-01-05

    申请号:DE69033372

    申请日:1990-04-26

    Applicant: CANON KK

    Abstract: Image processing apparatus comprising an input means to input the data of objective pixel, calculation means to obtain average density value in the specified region and quantization means to quantize the data of the objective pixel based on the said average density value wherein the entire image including its edge is effectively binalized and in the serial scanning of data, continuity is not lost at the connection of scans, thus enabling to obtain the image with excellent gradation and resolution.

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