Image forming apparatus, gradation correction method and control method of image forming apparatus
    1.
    发明申请
    Image forming apparatus, gradation correction method and control method of image forming apparatus 有权
    图像形成装置,图像形成装置的灰度校正方法和控制方法

    公开(公告)号:US20040246545A1

    公开(公告)日:2004-12-09

    申请号:US10783370

    申请日:2004-02-20

    发明人: Kousuke Touura

    IPC分类号: G03G017/04 G03F003/08

    摘要: An image forming apparatus includes: an image forming unit for forming a correcting image for correcting gradations of an output image, on a bearing body; a sensor for measuring reflected light quantity of the correcting image formed on the bearing body; a gradation correcting unit for correcting the gradations of the output image, based on a measurement result of the measured reflected light quantity of the correcting image; and a timing correcting unit for detecting a shift of measurement timing, based on the measurement result by the sensor, and for correcting the detected shift of the measurement timing.

    摘要翻译: 图像形成装置包括:图像形成单元,用于在轴承体上形成用于校正输出图像的灰度的校正图像; 用于测量形成在所述轴承体上的校正图像的反射光量的传感器; 灰度校正单元,用于基于校正图像的测量反射光量的测量结果来校正输出图像的灰度; 以及定时校正单元,用于基于传感器的测量结果检测测量定时的偏移,并且用于校正检测到的测量定时的移位。

    Document reader, image forming apparatus, and image processing method
    2.
    发明申请
    Document reader, image forming apparatus, and image processing method 有权
    文件阅读器,图像形成装置和图像处理方法

    公开(公告)号:US20040246533A1

    公开(公告)日:2004-12-09

    申请号:US10793267

    申请日:2004-03-04

    发明人: Kousuke Touura

    IPC分类号: H04N001/40 H04N001/46

    摘要: To improve operationality in color adjustment of an image quality, colored characters, or the like of a document including one of a character image, a photographic image, and a screened halftone image of chromatic or achromatic color, the invention comprises image processing means (36) for identifying a character area, a photographic area, and a screened halftone area of a document on the basis of a first parameter and determining whether one or more of the character area, the photographic area, and the screened halftone area of the document are chromatic or achromatic on the basis of a second parameter to perform image processing according to them; operation setting means (14) for setting the first and second parameters; and control means (15) for displaying a first parameter adjustment content for use in identifying one or more of the character area, the photographic area, and the screened halftone area of the document and a second parameter adjustment content for use in determining whether one or more of the character area, the photographic area, and the screened halftone area of the document are chromatic or achromatic on the same screen.

    摘要翻译: 为了提高包括彩色或无彩色的字符图像,摄影图像和被筛选的半色调图像之一的文档的图像质量,彩色字符等的颜色调整的操作性,本发明包括图像处理装置(36 ),用于基于第一参数识别文档的字符区域,照相区域和被筛选的半色调区域,并且确定文档的字符区域,摄影区域和被筛选的半色调区域中的一个或多个是 根据第二参数进行彩色或非彩色,以进行根据它们的图像处理; 操作设定装置(14),用于设定第一和第二参数; 以及用于显示第一参数调整内容以用于识别文档的字符区域,摄影区域和被筛选半色调区域中的一个或多个的第一参数调整内容的控制装置(15)和用于确定文档的一个或多个 在同一屏幕上,文字的更多的字符区域,照相区域和被筛选的半色调区域是彩色或非彩色的。

    Image process apparatus
    3.
    发明申请
    Image process apparatus 审中-公开
    图像处理装置

    公开(公告)号:US20040246528A1

    公开(公告)日:2004-12-09

    申请号:US10777540

    申请日:2004-02-11

    IPC分类号: H04N001/405 H04N001/409

    CPC分类号: H04N1/40075

    摘要: An image process apparatus has: a halftone process section for performing a halftone process on image data input from an image reading device which reads a document image; and a block average process section, wherein the halftone process section generates a continuous pattern in a fashion of a line structure by performing a dither process on the image data input, and the block average process section divides the image data input into a plurality of blocks whose centers approximately correspond to a centerline of the line structure generated by the halftone process section, calculates an average value of pixel values in each block, and replaces the pixel values in each block with the average value calculated.

    摘要翻译: 图像处理装置具有:半色调处理部分,用于对从读取文档图像的图像读取装置输入的图像数据进行半色调处理; 以及块平均处理部,其中,所述半色调处理部通过对所述图像数据输入执行抖动处理,以线结构的方式生成连续图案,并且所述块平均处理部将输入的图像数据分割为多个块 其中心大致对应于由半色调处理部分生成的线结构的中心线,计算每个块中的像素值的平均值,并用所计算的平均值替换每个块中的像素值。