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公开(公告)号：US08548236B2
公开(公告)日：2013-10-01
申请号：US13712064
申请日：2012-12-12
申请人： Christopher J. Edge
发明人： Christopher J. Edge
IPC分类号： G06K9/00
摘要： A method for matching colors including comparing the appearance of a first white color associated with a first color imaging system and a second white color associated with a second color imaging system, wherein the tristimulus values of the first and second white color are similar; determining a fixed correction to the tristimulus values of the second white color to achieve a visual match to the first white color; measuring a first set of spectral values for a first color associated with the first color imaging system; determining a first set of tristimulus values from the first set of spectral values; measuring a second set of spectral values for a second color associated with the second color imaging system; determining a second set of tristimulus values from the second set of spectral values; applying a correction to the tristimulus values of the second color; determining a difference between the tristimulus value of the first color and the corrected tristimulus value of the second color; and adjusting the second color to reduce the difference.
摘要翻译： 一种用于匹配颜色的方法，包括比较与第一彩色成像系统相关联的第一白色的外观和与第二彩色成像系统相关联的第二白色，其中第一和第二白色的三刺激值相似; 确定对所述第二白色的三刺激值的固定校正，以实现与所述第一白色的视觉匹配; 测量与第一彩色成像系统相关联的第一颜色的第一组光谱值; 从所述第一组频谱值确定第一组三刺激值; 测量与第二彩色成像系统相关联的第二颜色的第二组光谱值; 从所述第二组光谱值确定第二组三刺激值; 对所述第二颜色的三刺激值应用校正; 确定第一颜色的三刺激值和第二颜色的校正三刺激值之间的差; 并调整第二种颜色以减少差异。
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公开(公告)号：US20130100465A1
公开(公告)日：2013-04-25
申请号：US13280683
申请日：2011-10-25
IPC分类号： H04N1/60
CPC分类号： H04N1/6061 , H04N1/603
摘要： A method for forming a color transform for a color printing device having a plurality of colorant channels that includes applying a tone scale adjustment function and a total colorant load limit. An optimization process is used to optimize a merit function including a tone scale reproduction accuracy term and a gamut shape term. The method involves determining an initial merit function value responsive to an initial total colorant load limit and an initial set of tone scale adjustment parameters for a tone scale adjustment function. Modified tone scale adjustment parameters and a modified total colorant load limit are determined that provide an improved merit function value subject to a constraint that an average total colorant load is no more than a predefined threshold for a predefined distribution of input colors.
摘要翻译： 一种用于形成具有多个着色剂通道的彩色打印装置的颜色变换的方法，包括施加色调调节功能和总着色剂负载极限。 优化过程用于优化包括色阶重现精度项和色域形状项的优值函数。 该方法包括响应于初始总着色剂负载极限和用于色阶调节功能的初始的色阶调节参数集来确定初始优值函数值。 确定改进的色阶调节参数和修改的总着色剂负载极限，其提供改进的优值函数值，受限于平均总着色剂负载不超过预定义的输入颜色分布的预定阈值。
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公开(公告)号：US08401289B2
公开(公告)日：2013-03-19
申请号：US12533451
申请日：2009-07-31
申请人： Christopher J. Edge
发明人： Christopher J. Edge
IPC分类号： G06K9/00
摘要： A method for matching colors including comparing the appearance of a first white color associated with a first color imaging system and a second white color associated with a second color imaging system, wherein the tristimulus values of the first and second white color are similar; determining a fixed correction to the tristimulus values of the second white color to achieve a visual match to the first white color; measuring a first set of spectral values for a first color associated with the first color imaging system; determining a first set of tristimulus values from the first set of spectral values; measuring a second set of spectral values for a second color associated with the second color imaging system; determining a second set of tristimulus values from the second set of spectral values; applying a correction to the tristimulus values of the second color; determining a difference between the tristimulus value of the first color and the corrected tristimulus value of the second color; and adjusting the second color to reduce the difference.
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公开(公告)号：US08358318B2
公开(公告)日：2013-01-22
申请号：US12533400
申请日：2009-07-31
申请人： Christopher J. Edge
发明人： Christopher J. Edge
IPC分类号： G09G5/02
CPC分类号： G09G5/02 , G09G2340/06 , H04N1/6033
摘要： A method for reproducing an image on an imaging device, including measuring a set of spectral data for each of a plurality of colors from a set of color device values with a spectral measurement device; determining a first set of tristimulus values corresponding to each set of spectral data; defining a set of human observer color matching functions for each set of tristimulus values; determining a second set of tristimulus values for each set of spectral data using the human observer color matching functions; creating a first map from device-dependent coordinates to device-independent color coordinates; creating a second map from device-independent coordinates to device-dependent color coordinates based on the first map; obtaining image data comprising device-independent color coordinates; converting the image data coordinates into device color coordinates; and reproducing the image on the color device using the device color coordinates.
摘要翻译： 一种用于在成像装置上再现图像的方法，包括：利用光谱测量装置从一组彩色装置值测量多种颜色中的每一种的一组光谱数据; 确定对应于每组光谱数据的第一组三刺激值; 为每组三刺激值定义一组人类观察者颜色匹配函数; 使用人类观察者颜色匹配函数确定每组光谱数据的第二组三色值集合; 从设备相关坐标到与设备无关的颜色坐标创建第一张地图; 基于第一个地图创建从设备无关的坐标到依赖于设备的颜色坐标的第二个地图; 获得包括与设备无关的色坐标的图像数据; 将图像数据坐标转换为设备颜色坐标; 并使用设备颜色坐标在彩色设备上再现图像。
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55.发明授权公开(公告)号：US08355573B2
公开(公告)日：2013-01-15
申请号：US12533332
申请日：2009-07-31
申请人： Christopher J. Edge
发明人： Christopher J. Edge
IPC分类号： G06K9/00
CPC分类号： H04N1/60
摘要： A method for matching colors includes providing a first source of a first color and a second source of a second color; measuring a set of spectral values for first color stimuli associated with the first color; calculating a first set of tristimulus values; defining a first set of human observer color matching functions; calculating a first set of corrected tristimulus values from the first set of spectral values using the first set of human observer color matching functions; measuring a second set of spectral values for second color stimuli associated with the second color; calculating a second set of tristimulus values; defining a second set of human observer color matching functions; calculating a second set of corrected tristimulus values from the second set of spectral values; determining a difference between the first and second set of corrected tristimulus values; and adjusting one of the sources to reduce the difference.
摘要翻译： 用于匹配颜色的方法包括提供第一颜色的第一源和第二颜色的第二源; 测量与第一颜色相关联的第一颜色刺激的一组光谱值; 计算第一组三刺激值; 定义第一组人类观察者颜色匹配函数; 使用所述第一组人类观察者颜色匹配函数从所述第一组光谱值计算第一组校正的三刺激值; 测量与所述第二颜色相关联的第二颜色刺激的第二组光谱值; 计算第二组三刺激值; 定义第二组人类观察者颜色匹配函数; 从所述第二组光谱值计算第二组校正的三刺激值; 确定所述第一和第二组校正三刺激值之间的差; 并调整其中一个来源以减少差异。
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公开(公告)号：US20120328185A1
公开(公告)日：2012-12-27
申请号：US13165182
申请日：2011-06-21
申请人： Christopher J. Edge
发明人： Christopher J. Edge
IPC分类号： G06K9/00
CPC分类号： H04N1/6016 , H04N1/6033
摘要： A method of characterizing an imaging system is described includes printing a color chart having a plurality of predetermined color patches; measuring the color patches to obtain colorimetric data; initializing a Neugebauer model with the Neugebauer solids of said colorimetric data; optimizing the global parameters of the Neugebauer model; optimizing the parameters associated with Demichel terms based on the Neugebauer primary associated with the Demichel term; optimizing parameters that vary with device coordinates; creating a characterization file for the imaging system.
摘要翻译： 描述了一种表征成像系统的方法，包括：打印具有多个预定色块的色彩图; 测量色块以获得比色数据; 初始化Neugebauer模型与Neugebauer固体的所述比色数据; 优化Neugebauer模型的全局参数; 根据与Demichel术语相关的Neugebauer初级，优化与Demichel术语相关的参数; 优化随设备坐标变化的参数; 创建成像系统的表征文件。
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公开(公告)号：US08203756B2
公开(公告)日：2012-06-19
申请号：US12533367
申请日：2009-07-31
申请人： Christopher J. Edge
发明人： Christopher J. Edge
CPC分类号： H04N1/6052 , G01J3/46 , G01J3/462 , G01J3/465 , G01J3/50 , G01J3/506 , G09G5/02 , G09G2320/0666 , H04N9/67
摘要： A method for characterizing the color response of an imaging device, the method includes reproducing a color on the imaging device based on a set of device color coordinates; measuring spectral values for the reproduced color with a spectral measurement device controlled by a digital processing system; calculating a first set of tristimulus values from the spectral values; defining a set of human observer color matching functions, the set of human observer color matching functions being functions of the first set of tristimulus values of the reproduced color; calculating a second set of tristimulus values from the spectral values using the defined set of human observer color matching functions; and associating the reproduced device color coordinate with the second set of tristimulus values.
摘要翻译： 一种用于表征成像装置的颜色响应的方法，所述方法包括基于一组装置颜色坐标再现成像装置上的颜色; 用由数字处理系统控制的光谱测量装置测量再现颜色的光谱值; 从光谱值计算第一组三刺激值; 定义一组人类观察者颜色匹配函数，所述人类观察者颜色匹配函数集合是所述再现颜色的第一组三色值的函数; 使用所述定义的一组人类观察者颜色匹配函数从所述光谱值计算第二组三刺激值; 以及将再现的设备颜色坐标与第二组三刺激值相关联。
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公开(公告)号：US20110026817A1
公开(公告)日：2011-02-03
申请号：US12533332
申请日：2009-07-31
申请人： Christopher J. Edge
发明人： Christopher J. Edge
IPC分类号： G06K9/00
CPC分类号： H04N1/60
摘要： A method for matching colors includes providing a first source of a first color and a second source of a second color; measuring a set of spectral values for first color stimuli associated with the first color; calculating a first set of tristimulus values; defining a first set of human observer color matching functions; calculating a first set of corrected tristimulus values from the first set of spectral values using the first set of human observer color matching functions; measuring a second set of spectral values for second color stimuli associated with the second color; calculating a second set of tristimulus values; defining a second set of human observer color matching functions; calculating a second set of corrected tristimulus values from the second set of spectral values; determining a difference between the first and second set of corrected tristimulus values; and adjusting one of the sources to reduce the difference.
摘要翻译： 用于匹配颜色的方法包括提供第一颜色的第一源和第二颜色的第二源; 测量与第一颜色相关联的第一颜色刺激的一组光谱值; 计算第一组三刺激值; 定义第一组人类观察者颜色匹配函数; 使用所述第一组人类观察者颜色匹配函数从所述第一组光谱值计算第一组校正的三刺激值; 测量与所述第二颜色相关联的第二颜色刺激的第二组光谱值; 计算第二组三刺激值; 定义第二组人类观察者颜色匹配函数; 从所述第二组光谱值计算第二组校正的三刺激值; 确定所述第一和第二组校正三刺激值之间的差; 并调整其中一个来源以减少差异。
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公开(公告)号：US20110026052A1
公开(公告)日：2011-02-03
申请号：US12533367
申请日：2009-07-31
申请人： Christopher J. Edge
发明人： Christopher J. Edge
CPC分类号： H04N1/6052 , G01J3/46 , G01J3/462 , G01J3/465 , G01J3/50 , G01J3/506 , G09G5/02 , G09G2320/0666 , H04N9/67
摘要： A method for characterizing the color response of an imaging device, the method includes reproducing a color on the imaging device based on a set of device color coordinates; measuring spectral values for the reproduced color with a spectral measurement device controlled by a digital processing system; calculating a first set of tristimulus values from the spectral values; defining a set of human observer color matching functions, the set of human observer color matching functions being functions of the first set of tristimulus values of the reproduced color; calculating a second set of tristimulus values from the spectral values using the defined set of human observer color matching functions; and associating the reproduced device color coordinate with the second set of tristimulus values.
摘要翻译： 一种用于表征成像装置的颜色响应的方法，所述方法包括基于一组装置颜色坐标再现成像装置上的颜色; 用由数字处理系统控制的光谱测量装置测量再现颜色的光谱值; 从光谱值计算第一组三刺激值; 定义一组人类观察者颜色匹配函数，所述人类观察者颜色匹配函数集合是所述再现颜色的第一组三色值的函数; 使用所述定义的一组人类观察者颜色匹配函数从所述光谱值计算第二组三刺激值; 以及将再现的设备颜色坐标与第二组三刺激值相关联。
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60.发明授权公开(公告)号：US07738148B2
公开(公告)日：2010-06-15
申请号：US11375349
申请日：2006-03-14
申请人： Christopher J. Edge
发明人： Christopher J. Edge
CPC分类号： H04N1/6016
摘要： This invention provides methods for predicting calorimetric measurements of subtractive colors, in particular, when there is a measurable colorimetric change in one or more individual colorant relative to a set of baseline measurements. The invention is useful for, among other things, imaging applications or soft proofing environments to improve color modeling without requiring significant empirical measurements for adjustments to color models.
摘要翻译： 本发明提供了用于预测减色的量热测量的方法，特别是当相对于一组基线测量在一个或多个单个着色剂中存在可测量的比色变化时。 本发明尤其可用于成像应用或软打样环境以改进颜色建模，而不需要对颜色模型的调整进行显着的经验测量。
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