All-device-space automatic black replacement

    公开(公告)号:US07088470B2

    公开(公告)日:2006-08-08

    申请号:US09874524

    申请日:2001-06-04

    IPC分类号: G06K15/00

    CPC分类号: H04N1/6022

    摘要: A direct device-space-to-device-space transform adjusts the amount of actual black ink, to avoid highlight and midtone granularity in incremental printing—but with no need for translation into perceptual space. If the amount of black ink specified in the input data for a particular color is very small or very large, then that specified color is passed through the transform without substantial change. Thereby the amount of actual black ink and other colorants is held as nearly as practical at levels dictated by device-space input specifications while minimizing visible granularity. Replacement behavior is chosen to smoothly blend between different kinds of operation in different tonal ranges. This system accommodates personnel trained in classical printing-press technologies, who are accustomed to full control over amounts of black and other colorants.

    Methods, Apparatus and Software for Printing Location Pattern and Printed Materials
    3.
    发明申请
    Methods, Apparatus and Software for Printing Location Pattern and Printed Materials 有权
    打印位置图案和印刷材料的方法,装置和软件

    公开(公告)号:US20070273917A1

    公开(公告)日:2007-11-29

    申请号:US10571014

    申请日:2004-08-27

    IPC分类号: G06F15/00

    摘要: A print control system adapted to control a digital printer having a first machine-readable ink of a first colour and a second ink that is not machine readable at the same wavelength as said first ink and that is of substantially the same colour, said system being adapted to control said printer to print upon a document in said first ink a position -determining pattern readable by a digital pen to enable said pen to acquire data to enable a position of said pen in said pattern to be determined, and to print human discernable content that is not read by said pen superposed with said pattern using said second ink and not said first ink.

    摘要翻译: 一种打印控制系统,适于控制具有第一颜色的第一机器可读墨水和第二墨水的数字打印机,所述第一机器可读墨水在与所述第一墨水相同的波长处不是机器可读的并且具有基本相同的颜色,所述系统是 适于控制所述打印机在所述第一墨水中的文档上打印由数字笔可读取的图案的位置,以使所述笔能够获取数据以使所述笔在所述图案中的位置得以确定,并且打印人可辨别的 所述笔不会用所述第二墨水与所述图案重叠的内容,而不是所述第一墨水。

    4-Dimensional gray neutrality calibration
    4.
    发明申请
    4-Dimensional gray neutrality calibration 有权
    4维灰度中性校准

    公开(公告)号:US20050062985A1

    公开(公告)日:2005-03-24

    申请号:US10664805

    申请日:2003-09-19

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6088 H04N1/6027

    摘要: A method of applying a gray neutrality calibration to a color signal, said method comprising: representing said color signal as a position in a multi dimensional color space, in which each said dimension of said color space represents a respective primary color; defining a gray axis in said multi dimensional color space as a set of coordinates for which a plurality of said primary colors each have a same value as each other; determining a distance between said position representing said color signal and said gray axis; and using said determined distance between said color signal position and said gray axis to apply a gray neutrality correction to said input color signal.

    摘要翻译: 一种对彩色信号应用灰色中立校准的方法,所述方法包括:将所述颜色信号表示为多维颜色空间中的位置,其中所述颜色空间的每个所述维度表示相应的原色; 在所述多维颜色空间中定义一个灰度轴,其中多个所述原色各自具有相同的值; 确定表示所述颜色信号的所述位置与所述灰度轴之间的距离; 并且使用所述确定的所述颜色信号位置和所述灰度轴之间的距离来对所述输入彩色信号应用灰色中立校正。

    Printing system
    5.
    发明授权
    Printing system 有权
    印刷系统

    公开(公告)号:US08363273B2

    公开(公告)日:2013-01-29

    申请号:US12605433

    申请日:2009-10-26

    IPC分类号: G06F15/00

    CPC分类号: H04N1/6033

    摘要: Method of computing a convex hull in a predetermined color space, comprising determining a print attribute value range pertaining to a reference print attribute value, selecting base NP (Neugebauer Primary) area coverages, comprising area coverages of single NPs and combined NPs, having print attribute values in the print attribute value range, printing and measuring patches corresponding to the base NP area coverages, computing linear combinations of the base NP area coverages, and assigning one of the base NP area coverage or the linear combination of base NP area coverages to the corresponding color, depending on which is closest to the reference print attribute value.

    摘要翻译: 在预定颜色空间中计算凸包的方法,包括确定与参考打印属性值相关的打印属性值范围,选择包括具有打印属性的单个NP和组合NP的区域覆盖的基本NP(Neugebauer Primary)区域覆盖 打印属性值范围内的值,对应于基本NP区域覆盖的打印和测量补丁,计算基本NP区域覆盖的线性组合,以及将基本NP区域覆盖中的一个或基本NP区域覆盖的线性组合分配给 取决于最接近参考打印属性值的相应颜色。

    Printing System
    6.
    发明申请
    Printing System 有权
    印刷系统

    公开(公告)号:US20110096344A1

    公开(公告)日:2011-04-28

    申请号:US12605433

    申请日:2009-10-26

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6033

    摘要: Method of computing a convex hull in a predetermined color space, comprising determining a print attribute value range pertaining to a reference print attribute value, selecting base NP (Neugebauer Primary) area coverages, comprising area coverages of single NPs and combined NPs, having print attribute values in the print attribute value range, printing and measuring patches corresponding to the base NP area coverages, computing linear combinations of the base NP area coverages, and assigning one of the base NP area coverage or the linear combination of base NP area coverages to the corresponding color, depending on which is closest to the reference print attribute value.

    摘要翻译: 在预定颜色空间中计算凸包的方法,包括确定与参考打印属性值相关的打印属性值范围,选择包括具有打印属性的单个NP和组合NP的区域覆盖的基本NP(Neugebauer Primary)区域覆盖 打印属性值范围内的值,对应于基本NP区域覆盖的打印和测量补丁,计算基本NP区域覆盖的线性组合,以及将基本NP区域覆盖中的一个或基本NP区域覆盖的线性组合分配给 取决于最接近参考打印属性值的相应颜色。

    4-dimensional gray neutrality calibration
    7.
    发明授权
    4-dimensional gray neutrality calibration 有权
    4维灰度中性校准

    公开(公告)号:US07382490B2

    公开(公告)日:2008-06-03

    申请号:US10664805

    申请日:2003-09-19

    IPC分类号: G06F15/00

    CPC分类号: H04N1/6088 H04N1/6027

    摘要: A method of applying a gray neutrality calibration to a color signal, said method comprising: representing said color signal as a position in a multi dimensional color space, in which each said dimension of said color space represents a respective primary color; defining a gray axis in said multi dimensional color space as a set of coordinates for which a plurality of said primary colors each have a same value as each other; determining a distance between said position representing said color signal and said gray axis; and using said determined distance between said color signal position and said gray axis to apply a gray neutrality correction to said input color signal.

    摘要翻译: 一种对彩色信号应用灰色中立校准的方法,所述方法包括:将所述颜色信号表示为多维颜色空间中的位置,其中所述颜色空间的每个所述维度表示相应的原色; 在所述多维颜色空间中定义一个灰度轴,其中多个所述原色各自具有相同的值; 确定表示所述颜色信号的所述位置与所述灰度轴之间的距离; 并且使用所述确定的所述颜色信号位置和所述灰度轴之间的距离来对所述输入彩色信号应用灰色中立校正。

    Proofing data file generated by target printer facility

    公开(公告)号:US06607258B2

    公开(公告)日:2003-08-19

    申请号:US09832638

    申请日:2001-04-11

    IPC分类号: B41J2205

    CPC分类号: H04N1/6011 G06K15/025

    摘要: The final-hardcopy operating facility, “target facility”, converts the content provider's original data file to a different color space to form a proofing data file. A proofing facility, which is distinct from the target facility, uses the proofing file to produce a visible proof for viewing by the content provider, customer etc. A common proofing file is applied to both preparing the proof and printing the final hardcopy. Because it is the target facility rather than the content provider or the proofing facility that prepares the proofing file, using maximum available knowledge about the printing equipment which will be used and its color characterization and other technical behavior, this approach gives maximum assurance that the final hardcopy will represent the proof as accurately as practical.

    Apparatus and method for mitigating colorant-deposition errors in incremental printing
    9.
    发明授权
    Apparatus and method for mitigating colorant-deposition errors in incremental printing 有权
    用于减轻增量印刷中着色剂沉积误差的装置和方法

    公开(公告)号:US07417768B1

    公开(公告)日:2008-08-26

    申请号:US09688610

    申请日:2000-10-13

    IPC分类号: G06K15/00 H04N1/40

    摘要: CDE is measured for each nozzle array, to enable modification of a mapping between input image data and intended printing marks to compensate for the CDE. Printing proceeds using the modified mapping, which is either an optical-density transformation of data to printing marks or a spatial-resolution relation between image data and intended pixel grid. The density transformation preferably includes a dither mask (but can be error-diffusion thresholding instead); the resolution relation includes scaling of image data to pixel grid. For some invention forms, CDE includes printing-density defects, measured and used to derive a correction pattern—in turn used to modify halftone thresholding. For other forms CDE includes swath-height error, but still this is measured and used to derive a correction pattern etc. For still other forms, however, CDE includes swath-height error and correction takes the form of scaling. When the halftoning forms are applied to plural-pass printing, a printmask is used to map the dither mask etc. to the nozzle array, enabling application of the correction to the mask. Halftone forms ideally uses a gamma function, though threshold or linear corrections are possible instead. Halftone correction is effective in single-pass printing. The swath-height correction can modify heights of all nozzle arrays. Computations are done at most only once for a full image.

    摘要翻译: 测量每个喷嘴阵列的CDE,以便能够修改输入图像数据和预期打印标记之间的映射,以补偿CDE。 使用修改的映射进行打印,该映射是数据到打印标记的光密度变换或图像数据与预期像素网格之间的空间分辨率关系。 密度变换优选包括抖动掩模(但可以是误差扩散阈值代替); 分辨率关系包括将图像数据缩放到像素网格。 对于一些发明形式,CDE包括测量并用于导出校正模式的印刷密度缺陷,反过来用于修改半色调阈值。 对于其他形式,CDE包括扫描高度误差,但仍然被测量并用于导出校正模式等。然而,对于其他形式,CDE包括幅高错误,校正采用缩放的形式。 当将半色调形式应用于多遍打印时,使用打印掩模将抖动掩模等映射到喷嘴阵列,使得能够对掩模应用校正。 半色调形式理想地使用伽玛功能,尽管可以改变阈值或线性校正。 半色调校正在单程打印中有效。 扫描高度校正可以改变所有喷嘴阵列的高度。 对于完整图像,计算最多只能完成一次。

    COLOR PROFILE SELECTION
    10.
    发明申请
    COLOR PROFILE SELECTION 有权
    彩色配置选择

    公开(公告)号:US20120019881A1

    公开(公告)日:2012-01-26

    申请号:US12841575

    申请日:2010-07-22

    IPC分类号: H04N1/46

    CPC分类号: H04N1/46

    摘要: Scanner, method or computer program product, arranged to sense media color information, store predetermined color values of preselected non-printed media and storing corresponding color profiles adapted for the respective preselected media, and process sensed color values, compare a sensed color value with the predetermined color values, and select one of said color profiles based on the comparison.

    摘要翻译: 扫描器,方法或计算机程序产品,被布置为感测媒体颜色信息,存储预选非打印介质的预定颜色值并存储适合于各个预选介质的相应颜色配置,以及处理检测到的颜色值,将感测到的颜色值与 预定颜色值,并且基于比较来选择所述颜色配置文件之一。