Image forming apparatus
    1.
    发明公开
    Image forming apparatus 失效
    成像设备

    公开(公告)号:EP0579186A1

    公开(公告)日:1994-01-19

    申请号:EP93111234.6

    申请日:1993-07-13

    IPC分类号: H04N1/40

    CPC分类号: H04N1/407

    摘要: In an image forming apparatus according to the present invention, characteristics correcting data for correcting input gray level-output gray level characteristics for each of a plurality of steps into which input gray levels are divided are inputted by inputting means. At the time of image formation processing, input gray level-output gray level characteristic data are corrected on the basis of each of the characteristics correcting data (Sft) inputted by the inputting means.

    摘要翻译: 在根据本发明的图像形成设备中,通过输入装置输入用于校正输入灰度级被划分成的多个步骤中的每一个的输入灰度级输出灰度级特性的特性校正数据。 在图像形成处理时,基于由输入装置输入的每个特性校正数据(Sft)来校正输入灰度级输出灰度级特性数据。

    A color correction device
    4.
    发明公开
    A color correction device 失效
    色彩校正装置

    公开(公告)号:EP0760580A1

    公开(公告)日:1997-03-05

    申请号:EP96111641.5

    申请日:1996-07-18

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6016 H04N1/62

    摘要: A color correcting device for applying a color correction to an image data made up of color components of three primary colors and read by a color image reader means, the device includes: an image data extractor for extracting an image data of a predetermined color to be corrected based on a density balance of the respective color components of three primary colors, and a corrector for correcting a density level of a specified color component set in advance in correspondence with the color to be corrected, out of the color components of the extracted image data, to a predetermined density level.

    摘要翻译: 一种颜色校正装置,用于对由三原色的颜色成分组成的图像数据进行颜色校正,并由彩色图像阅读器装置读取,该装置包括:图像数据提取器,用于提取预定颜色的图像数据 基于三原色的各个颜色分量的密度平衡而校正的校正值;以及校正器,用于校正提取的图像的颜色分量中的与待校正的颜色相对应地预先设置的指定颜色分量的浓度水平 数据,达到预定的密度水平。

    Color correcting device and color correcting method
    6.
    发明公开
    Color correcting device and color correcting method 失效
    Verfahren und Vorrichtung zur Farbkorrektur

    公开(公告)号:EP0744863A1

    公开(公告)日:1996-11-27

    申请号:EP96108362.3

    申请日:1996-05-24

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6075 H04N1/6027

    摘要: The present invention relates to a color correcting device and a color correcting method in an image forming apparatus such as a color copying machine. In the present invention, a correction factor in a masking equation is previously found for each predetermined hue range. It is judged which of a plurality of predetermined hue ranges corresponds to a hue corresponding to input data composed of color data in a plurality of colors. The input data is subjected to color correction using a masking equation using a correction factor corresponding to the judged hue range.

    摘要翻译: 本发明涉及彩色复印机等图像形成装置中的色彩校正装置和颜色校正方法。 在本发明中,对于每个预定色调范围,先前找到了掩蔽方程式中的校正因子。 判断多个预定色调范围中的哪一个对应于与由多种颜色的颜色数据组成的输入数据相对应的色调。 使用与所判定的色调范围相对应的校正因子的掩蔽方程对输入数据进行颜色校正。

    Apparatus for and method of judging dotted image area
    9.
    发明公开
    Apparatus for and method of judging dotted image area 失效
    Vorrichtung und verfahren zur Beurteilung von Bildpunktbereichen

    公开(公告)号:EP0713326A1

    公开(公告)日:1996-05-22

    申请号:EP95117934.0

    申请日:1995-11-14

    IPC分类号: H04N1/40

    CPC分类号: H04N1/40062

    摘要: An apparatus for and a method of judging a dotted image area using a small-capacity memory. Image data corresponding to one line out of image data representing an original image are stored in a line memory (61). On the line corresponding to the image data stored in the line memory (61), a target pixel is successively set along the main scanning direction. Image data corresponding to the target pixel is compared with image data corresponding to pixels around the target pixel. It is judged whether or not the target pixel is a peculiar point pixel on the basis of the result of the comparison. Further, the distance between peculiar point pixels is operated. The operated distance between the peculiar point pixels is referred to a predetermined judgment basis, to judge whether or not a judging area including the finite number of pixels is a dotted image area.

    摘要翻译: 一种使用小容量存储器来判断虚线图像区域的装置和方法。 对应于表示原始图像的图像数据中的一行的图像数据被存储在行存储器(61)中。 在对应于存储在行存储器(61)中的图像数据的行上,沿着主扫描方向连续设置目标像素。 对应于目标像素的图像数据与对应于目标像素周围的像素的图像数据进行比较。 基于比较结果判断目标像素是否是特殊点像素。 此外,操作特殊点像素之间的距离。 特定点像素之间的操作距离参照预定的判断基准,以判断包括有限数量的像素的判断区域是否为虚线图像区域。