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    • 3. 发明授权
    • Color adjustment using black generation and under color removal
    • 使用黑色和彩色去除颜色调整
    • US07433511B2
    • 2008-10-07
    • US10688601
    • 2003-10-17
    • Steve A. Jacob
    • Steve A. Jacob
    • G06K9/00G03F3/08
    • H04N1/6022
    • In one embodiment, mapping color data from CMY to CMYK is performed in a manner which allows selection between creating better harmony between process-neutral and K-only neutral images when printed side-by-side, or creating better-looking images individually. In the course the mapping, adjustment is made over a degree to which BG (black generation) color coefficient generation is similar for process-neutral and K-only neutral images to produce BG coefficients. Similarly, adjustment is made over a degree to which UCR (under color removal) color coefficient generation is similar for process-neutral and K-only neutral images to produce UCR coefficients. Color data is them mapped, using the produced BG coefficients and the produced UCR coefficients.
    • 在一个实施例中,将颜色数据从CMY到CMYK的映射以允许选择之间进行选择,以便在并排打印时创建过程中性和仅K中立图像之间的更好的协调,或者分别创建更好的图像。 在该过程中,映射,在一个程度上进行BG(黑色生成)颜色系数生成的程度,对于过程中性和仅K中性图像来说相似,以产生BG系数。 类似地,在对于过程中性和仅K中性图像产生UCR(颜色去除)颜色系数生成相似的程度上进行调整以产生UCR系数。 使用所产生的BG系数和所产生的UCR系数来映射颜色数据。
    • 4. 发明授权
    • Color separation based on maximum toner limits
    • 基于最大调色剂限制的颜色分离
    • US07433100B2
    • 2008-10-07
    • US10448596
    • 2003-05-30
    • Steve A. Jacob
    • Steve A. Jacob
    • G03F3/08G06F15/00H04N1/46
    • H04N1/6022G06K15/129
    • Various systems, methods, and programs embodied in a computer readable medium for determining color separation are provided. In one representative embodiment, a method is provided that comprises specifying a number of nodes along a number of ramps in a predefined color conversion space in a computer system. A maximum possible toner deposit is associated with each of these nodes. In addition, a maximum toner limit is specified for each one of the nodes along the ramps in the computer system. Each of the maximum toner limits is less than the maximum possible toner deposit. In addition, a color separation is determined for each of the nodes along the ramps in the computer system. Each of the color separations specifies up to a maximum amount of toner equaling a corresponding one of the maximum toner limits.
    • 提供了在用于确定颜色分离的计算机可读介质中体现的各种系统,方法和程序。 在一个代表性实施例中,提供了一种方法,其包括在计算机系统中的预定义颜色转换空间中沿着多个斜坡指定节点的数量。 最大可能的调色剂沉积与这些节点中的每一个相关联。 另外,在计算机系统中沿着斜坡的每个节点指定最大调色剂限制。 每个最大色粉极限小于最大可能的调色剂沉积。 另外,在计算机系统中沿着斜坡的每个节点确定颜色分离。 每个分色指定最多达等于相应的一个最大调色剂界限的调色剂的最大量。
    • 6. 发明授权
    • Imaging device and method for implementing a color map with K-only black point while reducing interpolator artifacts
    • 用于在减少内插器伪影的同时实现具有K-only黑点的彩色映射的成像设备和方法
    • US06169609A
    • 2001-01-02
    • US09095001
    • 1998-06-09
    • Steve A. JacobDavid A. JohnsonJeffrey L. Trask
    • Steve A. JacobDavid A. JohnsonJeffrey L. Trask
    • G03F308
    • H04N1/6025
    • A color mapping scheme is provided which enables a K-only black point while minimizing interpolator image artifacts. Specifically, a system and method of reducing image artifacts for a color imaging device include implementing a color map so that no C, M or Y color value that is used in defining the black point is produced, except at the black point. The system and method further include implementing a halftone ramp so that: (i) a halftone pattern is selected to provide no rendering for any C, M or Y color value that is used in defining the black point, and (ii) a halftone pattern is selected to provide a full rendering for any K color value that is used in defining the black point. The color map is also implemented so that no C, M or Y color value that is used in defining the black point is obtained as a result of interpolation, except for at the black point.
    • 提供了一种颜色映射方案,其使得仅K的黑点同时最小化内插器图像伪像。 具体来说,减少彩色成像装置的图像伪像的系统和方法包括实现彩色图,使得除黑点之外,不产生用于定义黑点的C,M或Y颜色值。 该系统和方法还包括实现半色调斜坡,使得:(i)选择半色调图案以提供用于定义黑点的任何C,M或Y颜色值的渲染,以及(ii)半色调图案 被选择以提供用于定义黑点的任何K颜色值的完整渲染。 彩色图也被实现为除了在黑点之外,作为内插的结果,不能获得用于定义黑点的C,M或Y颜色值。
    • 7. 发明授权
    • Method of defining a device color profile for a color output device
    • 定义颜色输出设备的设备颜色配置文件的方法
    • US07433101B2
    • 2008-10-07
    • US10820954
    • 2004-04-07
    • Steve A JacobMark Shaw
    • Steve A JacobMark Shaw
    • G03F3/08
    • H04N1/6033H04N1/6097
    • A method of defining a device color profile is described. The method may include (a) storing a first set of color descriptions, wherein each color description describes a color of a different printed test patch in a first target and includes: (i) a set of color component values defined in an overlapping color space, and (ii) at least one color component cross term; (b) obtaining a second set of color descriptions, wherein each color description in the second set describes a color of a different printed test patch in a second target and includes: (i) a set of color component values defined in the overlapping color space, and (ii) at least one color component cross term; and (c) using the stored first set of color descriptions and the second set of color descriptions to define a device color profile.
    • 描述了一种定义设备颜色配置文件的方法。 该方法可以包括(a)存储第一组颜色描述,其中每个颜色描述描述第一目标中的不同印刷测试贴片的颜色,并且包括:(i)在重叠颜色空间中定义的一组颜色分量值 ,和(ii)至少一种颜色分量交叉项; (b)获得第二组颜色描述,其中第二组中的每个颜色描述描述第二目标中的不同印刷测试片的颜色,并且包括:(i)在重叠颜色空间中定义的一组颜色分量值 ,和(ii)至少一种颜色分量交叉项; 和(c)使用存储的第一组颜色描述和第二组颜色描述来定义设备颜色配置文件。