Method and apparatus for producing color images
    2.
    发明公开
    Method and apparatus for producing color images 失效
    Farbbilderzeugungsverfahren und -vorrichtung

    公开(公告)号:EP0817468A1

    公开(公告)日:1998-01-07

    申请号:EP97304784.8

    申请日:1997-07-01

    申请人: XEROX CORPORATION

    IPC分类号: H04N1/52

    CPC分类号: H04N1/52

    摘要: A method and apparatus for creating color images are effective to reduce two-color moiré. The techniques apply a non-periodic halftone operation (152) to the color separation for a less perceptible color (e.g., yellow) and periodic halftone operations (150, 154, 158) to color separations for more perceptible colorants (e.g. cyan, magenta and black). The techniques prevent the formation of periodic structures due to the interaction of the yellow colorant with one of the other colorants (e.g., cyan or magenta).

    摘要翻译: 用于产生彩色图像的方法和装置有效地减少双色莫尔条纹。 这些技术将非周期性半色调操作(152)应用于颜色分离,以便较不可察觉的颜色(例如黄色)和周期性半色调操作(150,154,158),以便为更可感知的着色剂(例如青色,洋红色和 黑色)。 由于黄色着色剂与其它着色剂(例如,青色或品红色)之间的相互作用,这些技术阻止了周期性结构的形成。

    System and method for compiling images for printing
    4.
    发明公开
    System and method for compiling images for printing 有权
    系统和Verfahren zur Zusammenstellung von Druckbildern

    公开(公告)号:EP1768018A2

    公开(公告)日:2007-03-28

    申请号:EP06120123.2

    申请日:2006-09-05

    申请人: Xerox Corporation

    IPC分类号: G06F3/12

    摘要: Disclosed are systems and methods for compiling a set of images into a single document image file having a version key and a color plane associated therewith. The version key is employed in association with the images and color planes to cause a raster image processor to select, or ignore, color planes and thereby enable printing of a plurality of multi-versioned documents from a common image file set.

    摘要翻译: 公开了用于将一组图像编译成具有版本键和与其相关联的彩色平面的单个文档图像文件的系统和方法。 与图像和颜色平面相关联地使用版本键,以使得光栅图像处理器选择或忽略颜色平面,从而能够从公共图像文件集打印多个多版本文档。