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1.发明授权公开(公告)号：US07889402B2
公开(公告)日：2011-02-15
申请号：US11692566
申请日：2007-03-28
CPC分类号： H04N1/6016
摘要： Systems and methods for limiting total colorant in a color rendering system are disclosed. Implementation of the present invention provides for transformation of a specified colorant in which the sum of the colorant components exceeds a total area coverage (TAC) limit to create a second or resultant colorant in which the sum of the colorant components is within the limit. Using a bijective transformation, colorant sampling and other manipulations can be performed using a nominal hypercube space and the results can be compressed from the nominal space back to the actual colorant-limited space, simplifying manipulation of the colorant-limited polytope space. The unlimited colorant hypercube may be divided into simplexes. For each simplex, intersection points may be found between the TAC limit and the edges of the simplex. A barycentric interpolation technique may then be used to map the unlimited simplex onto a corresponding simplex within the colorant-limited polytope.
摘要翻译： 公开了在显色系统中限制总着色剂的系统和方法。 本发明的实施提供了着色剂组分的总和超过总面积覆盖（TAC）极限以产生其中着色剂组分的总和在极限内的第二或所得着色剂的特定着色剂的转化。 使用双射转换，可以使用标称超立方体空间进行着色剂取样和其他操作，并且可以将结果从标称空间压缩回实际的着色剂限制空间，从而简化着色剂限制的多面体空间的操作。 无限着色超立方体可以分为单面。 对于每个单纯形，可以在TAC限制和单面的边缘之间找到交点。 然后可以使用重心插值技术将无限单纯形映射到着色剂限制多面体内的相应单形。
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2.发明授权Color conversion with hue straightening using multiple look-up tables and interpolation 有权使用多个查找表和插值的色调校正的颜色转换公开(公告)号：US07190487B2
公开(公告)日：2007-03-13
申请号：US10156279
申请日：2002-05-27
IPC分类号： G06F15/00
CPC分类号： G06F15/00 , G06K15/02 , H04N1/6025
摘要： A method of color conversion includes providing a first color domain input signal set having plural input signals; sorting the input signals of the first color domain input signal set according to signal intensity; designing and generating plural 1-D look-up table sets for color polyhedrons; selecting a set of look-up tables for use with a specific color polyhedron, wherein said selecting is a function of a section of the polyhedron determined as a function of the input signal set; looking up values in the look-up table set as a function of the input signal set; generating weights as a function of the sorted signal intensities; and interpolating the output from the selected look-up tables as a function of the selected look-up table and the generated weights to produce a color domain signal set which is converted to a desired color domain signal set.
摘要翻译： 一种颜色转换方法包括提供具有多个输入信号的第一色域输入信号组; 根据信号强度对第一色域输入信号的输入信号进行分类; 设计和生成彩色多面体的多个1-D查找表集合; 选择一组用于特定彩色多面体的查找表，其中所述选择是根据输入信号组确定的多面体的一部分的函数; 查找查找表中的值作为输入信号集的函数; 产生权重作为分类信号强度的函数; 并且根据所选择的查找表和所生成的权重内插来自所选择的查找表的输出，以产生被转换为期望的色域信号集的色域信号集。
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3.发明授权公开(公告)号：US06995866B2
公开(公告)日：2006-02-07
申请号：US09808862
申请日：2001-03-14
摘要： A method for background adjustment. A background lightness level in an original image is estimated. Pixels are then converted to a luminance-chrominance color space. Pixels have lightness levels equal to the background lightness level are mapped to a value corresponding to white as background pixels. Chroma values for the background pixels are compared to a threshold and adjusted as needed, either by adjusting the lightness value or by removing the chrominance values. The luminance-chrominance data is then converted to output space.
摘要翻译： 背景调整方法。 估计原始图像中的背景亮度水平。 然后将像素转换为亮度 - 色度色彩空间。 像素具有等于背景亮度级别的亮度级别被映射到对应于作为背景像素的白色的值。 将背景像素的色度值与阈值进行比较，并根据需要进行调整，方法是调整亮度值或去除色度值。 然后将亮度色度数据转换为输出空间。
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公开(公告)号：US20110051207A1
公开(公告)日：2011-03-03
申请号：US12549971
申请日：2009-08-28
IPC分类号： G03F3/08
CPC分类号： H04N1/6058
摘要： A method is provided for gamut clipping with preprocessing enabled as software instructions stored in a computer-readable medium and executable by a processor. The instructions provide a color in a color space defined by at least three attributes. If the color lies outside a gamut boundary in the first color space, a distance is measured from the color to the gamut boundary. In response to the measured distance, a weight is calculated for an attribute of the color. Then, it is determined if the attribute of the color is to be shifted. If so, an attribute shift amount is derived. The attribute shift amount of the color is modified by applying the weighting. The attribute of the first color is shifted by the weighted attribute shift amount, creating a post-processed color. The post-processed color is then clipped.
摘要翻译： 提供了一种用于色域削波的方法，其中预处理使能作为存储在计算机可读介质中并由处理器执行的软件指令。 指令提供由至少三个属性定义的颜色空间中的颜色。 如果颜色位于第一颜色空间中的色域边界之外，则从颜色到色域边界测量距离。 响应于测量的距离，针对颜色的属性计算权重。 然后，确定颜色的属性是否被移动。 如果是，则导出属性偏移量。 通过应用加权来修改颜色的属性偏移量。 第一种颜色的属性偏移加权属性偏移量，创建后处理颜色。 然后修剪后处理的颜色。
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5.发明授权公开(公告)号：US07545541B2
公开(公告)日：2009-06-09
申请号：US11134798
申请日：2005-05-20
IPC分类号： H04N1/40
CPC分类号： H04N1/6033
摘要： Systems and methods for utilizing metadata embedded in a color measurement target to uniquely identify the target through color measurement. A color measurement target is used for color calibration, color characterization, color adjustment and/or color correction of a color output device and includes a collection of color patches imaged by the output device, wherein metadata is embedded directly into the color patches of the color measurement target to uniquely identify the target through color measurement. The metadata-bearing patches in the target are used to communicate information through color measurement, and can contribute to the color characterization.
摘要翻译： 用于利用嵌入在颜色测量目标中的元数据以通过颜色测量唯一地识别目标的系统和方法。 颜色测量目标被用于颜色校准，颜色表征，颜色调整和/或颜色输出设备的颜色校正，并且包括由输出设备成像的色标的集合，其中元数据直接嵌入到颜色的色块中 测量目标，通过颜色测量来唯一识别目标。 目标中的元数据承载补丁用于通过颜色测量来传递信息，并且可以有助于颜色表征。
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6.发明授权Adaptive generation of perceptually uniform samples for printer characterization 有权用于打印机表征的感知统一样本的适应性生成公开(公告)号：US07256912B2
公开(公告)日：2007-08-14
申请号：US10606056
申请日：2003-06-25
申请人： James Zhixin Chang
发明人： James Zhixin Chang
IPC分类号： G06F15/00
CPC分类号： G06F15/00 , H04N1/6033
摘要： A method is provided for adaptively generating perceptually uniform printer characterization samples in a three-dimensional (3-D) signal space. The method comprises: generating lines, each including a plurality of samples, in a printer 3-D signal space; printing signal space color targets; measuring the signal space color targets; generating lines with a plurality of perceptually uniform samples; generating polygon shapes in the 3-D signal space from the perceptually uniform sampled lines; calculating addition perceptually uniform sample points associated with each polygon; and, generating a final target in the printer 3-D signal space using the calculated perceptually uniform sample points. In one aspect, generating lines, includes: for each line, generating a metric distance function; creating a plurality of perceptually uniform samples on the function output axis; and, using the inverse of the metric distance function, mapping perceptually uniform samples onto the line.
摘要翻译： 提供一种用于在三维（3-D）信号空间中自适应地生成感知统一的打印机表征样本的方法。 该方法包括：在打印机3-D信号空间中生成各自包括多个样本的线; 打印信号空间颜色目标; 测量信号空间的颜色目标; 生成具有多个感知统一样本的线; 从感知统一的采样线在3-D信号空间中产生多边形形状; 计算与每个多边形相关联的感知统一采样点的加法; 并且使用所计算的感知统一的采样点在打印机3-D信号空间中产生最终目标。 一方面，生成线包括：对于每一行，生成度量距离函数; 在功能输出轴上产生多个感知统一的样本; 并且使用度量距离函数的倒数，将感知统一的样本映射到该行上。
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7.发明申请公开(公告)号：US20090244642A1
公开(公告)日：2009-10-01
申请号：US12468267
申请日：2009-05-19
CPC分类号： H04N1/6033
摘要： Systems and methods for utilizing metadata embedded in a color measurement target to uniquely identify the target through color measurement. A color measurement target is used for color calibration, color characterization, color adjustment and/or color correction of a color output device and includes a collection of color patches imaged by the output device, wherein metadata is embedded directly into the color patches of the color measurement target to uniquely identify the target through color measurement. The metadata-bearing patches in the target are used to communicate information through color measurement, and can contribute to the color characterization.
摘要翻译： 用于利用嵌入在颜色测量目标中的元数据以通过颜色测量唯一地识别目标的系统和方法。 颜色测量目标被用于颜色校准，颜色表征，颜色调整和/或颜色输出设备的颜色校正，并且包括由输出设备成像的色标的集合，其中元数据直接嵌入到颜色的色块中 测量目标，通过颜色测量来唯一识别目标。 目标中的元数据承载补丁用于通过颜色测量来传递信息，并且可以有助于颜色表征。
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8.发明申请公开(公告)号：US20080239340A1
公开(公告)日：2008-10-02
申请号：US11692566
申请日：2007-03-28
IPC分类号： G06F15/00
CPC分类号： H04N1/6016
摘要： Systems and methods for limiting total colorant in a color rendering system are disclosed. Implementation of the present invention provides for transformation of a specified colorant in which the sum of the colorant components exceeds a total area coverage (TAC) limit to create a second or resultant colorant in which the sum of the colorant components is within the limit. Using a bijective transformation, colorant sampling and other manipulations can be performed using a nominal hypercube space and the results can be compressed from the nominal space back to the actual colorant-limited space, simplifying manipulation of the colorant-limited polytope space. The unlimited colorant hypercube may be divided into simplexes. For each simplex, intersection points may be found between the TAC limit and the edges of the simplex. A barycentric interpolation technique may then be used to map the unlimited simplex onto a corresponding simplex within the colorant-limited polytope.
摘要翻译： 公开了在显色系统中限制总着色剂的系统和方法。 本发明的实施提供了着色剂组分的总和超过总面积覆盖（TAC）极限以产生其中着色剂组分的总和在极限内的第二或所得着色剂的特定着色剂的转化。 使用双射转换，可以使用标称超立方体空间进行着色剂取样和其他操作，并且可以将结果从标称空间压缩回实际的着色剂限制空间，从而简化着色剂限制的多面体空间的操作。 无限着色超立方体可以分为单面。 对于每个单纯形，可以在TAC限制和单面的边缘之间找到交点。 然后可以使用重心插值技术将无限单纯形映射到着色剂限制多面体内的相应单形。
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公开(公告)号：US08643922B2
公开(公告)日：2014-02-04
申请号：US12549971
申请日：2009-08-28
IPC分类号： G03F3/08
CPC分类号： H04N1/6058
摘要： A method is provided for gamut clipping with preprocessing enabled as software instructions stored in a computer-readable medium and executable by a processor. The instructions provide a color in a color space defined by at least three attributes. If the color lies outside a gamut boundary in the first color space, a distance is measured from the color to the gamut boundary. In response to the measured distance, a weight is calculated for an attribute of the color. Then, it is determined if the attribute of the color is to be shifted. If so, an attribute shift amount is derived. The attribute shift amount of the color is modified by applying the weighting. The attribute of the first color is shifted by the weighted attribute shift amount, creating a post-processed color. The post-processed color is then clipped.
摘要翻译： 提供了一种用于色域削波的方法，其中预处理使能作为存储在计算机可读介质中并由处理器执行的软件指令。 指令提供由至少三个属性定义的颜色空间中的颜色。 如果颜色位于第一颜色空间中的色域边界之外，则从颜色到色域边界测量距离。 响应于测量的距离，针对颜色的属性计算权重。 然后，确定颜色的属性是否被移动。 如果是，则导出属性偏移量。 通过应用加权来修改颜色的属性偏移量。 第一种颜色的属性偏移加权属性偏移量，创建后处理颜色。 然后修剪后处理的颜色。
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10.发明申请Methods, Systems and Apparatus for Jointly Calibrating Multiple Displays in a Display Ensemble 有权用于在显示组合中共同校准多个显示器的方法，系统和装置公开(公告)号：US20130120589A1
公开(公告)日：2013-05-16
申请号：US13294888
申请日：2011-11-11
IPC分类号： H04N17/02
CPC分类号： G06F3/1446 , G09G5/02 , G09G2320/0626 , G09G2320/0666 , G09G2320/0673 , G09G2320/0693 , H04N9/69
摘要： Aspects of the present invention are related to systems, methods and apparatus for calibration of multiple display apparatus in a display ensemble.
摘要翻译： 本发明的方面涉及用于在显示器组合中校准多个显示装置的系统，方法和装置。
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