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11. 发明申请

US20120212752A1 UPDATING A FLEET CMYK TO ENGINE cmyk LUT IN A COLOR MANAGEMENT STRATEGY 有权
标题翻译：在颜色管理策略中更新发布CMYK LUT的FLEET CMYK
公开(公告)号：US20120212752A1
公开(公告)日：2012-08-23
申请号：US13029753
申请日：2011-02-17
申请人： Yao Rong Wang , Lalit Keshav Mestha , Martin S. Maltz
发明人： Yao Rong Wang , Lalit Keshav Mestha , Martin S. Maltz
IPC分类号： H04N1/60
CPC分类号： H04N1/6016 , H04N1/40006
摘要： What is disclosed is a system and method which addresses the problem of inheriting color management intent from a fleet color management LUT into a 4-to-4 cascaded LUT. The LUT is updated starting with a set of patches that either form a uniform or non-uniform grid of the LUT or can be projected to a uniform or non-uniform grid in the CMYK space using, e.g., PCA. A set of L*a*b* target as well a variable that serve the purpose of preserving the GCR and other elements of the fleet profile is obtained by passing the set of CMYK values to the fleet printer model. By iterating on the printer (or the printer model of the engine at the moment of the engine change) and converging to the targets, the engine device cmyk set is obtained. The LUT is formed between the uniform or non-uniform gridded CMYK and the device cmyk.
摘要翻译：公开的是一种系统和方法，其解决将车队颜色管理LUT的颜色管理意图从继承到4对4级联LUT的问题。 LUT以从LUT的统一或非均匀网格形成的一组补丁开始更新，或者使用例如PCA将其投影到CMYK空间中的均匀或非均匀网格。通过将一组CMYK值传递给车队打印机模型，获得一组L * a * b *目标以及用于保存GCR和船队简档的其他元素的变量。通过在打印机（或发动机更换时刻的发动机的打印机型号）上迭代并收敛到目标，获得发动机装置cmyk组。 LUT在均匀或不均匀的网格CMYK和设备cmyk之间形成。

12. 发明申请

US20090080041A1 MULTIPLE DIMENSIONAL COLOR CONVERSION TO MINIMIZE INTERPOLATION ERROR 失效
标题翻译：多尺寸颜色转换以最小化插值错误
公开(公告)号：US20090080041A1
公开(公告)日：2009-03-26
申请号：US11860631
申请日：2007-09-25
申请人： Zhigang Fan , Martin S. Maltz , Lalit Keshav Mestha , Yao Rong Wang , Alvaro E. Gil
发明人： Zhigang Fan , Martin S. Maltz , Lalit Keshav Mestha , Yao Rong Wang , Alvaro E. Gil
IPC分类号： G03F3/00
CPC分类号： H04N1/60 , H04N1/6019
摘要： Linear transformations of L*a*b* color space are provided to minimize interpolation errors when performing multi-dimensional color space conversions involving lookup tables. Methods are provided for linear transformations (e.g., rotation and shear) to substantially fir the sampling grid to a given printer gamut.
摘要翻译：提供L * a * b *颜色空间的线性变换，以便在执行涉及查找表的多维颜色空间转换时，最小化插补误差。提供了用于线性变换（例如旋转和剪切）以将采样网格基本上冷却到给定的打印机色域的方法。

13. 发明申请

US20120105927A1 COMPENSATING FOR PRINT ENGINE CHANGE IN A DOCUMENT REPRODUCTION DEVICE 有权
标题翻译：在文件生成设备中补充打印引擎更改
公开(公告)号：US20120105927A1
公开(公告)日：2012-05-03
申请号：US12915217
申请日：2010-10-29
申请人： Lalit Keshav Mestha , Martin S. Maltz , Yao Rong Wang
发明人： Lalit Keshav Mestha , Martin S. Maltz , Yao Rong Wang
IPC分类号： G03F3/08
CPC分类号： H04N1/6022
摘要： What is disclosed is a novel system and method of inheriting intended GCR into a 4-to-4 cascaded LUT to compensate for print engine change which adversely impacts the quality of an output print. The present method uses the device link transform to generate starting LUT nodes for the inverse of the drifted printer model by inputting CMYK or RGB into the device link at a color space resolution sufficient to determine output nodes. Lab and CMYK values are derived from this process, and a “starting LUT” is created at the Lab destination nodes. An iterative control begins with this starting LUT to produce an inverse drifted printer model that contains a close approximation for the intended GCR. The present method captures the intent of the device link transform for a fleet and generates the cascaded LUT for drift, specific printer, side1/side2, and other modes leading to special GCRs.
摘要翻译：所公开的是将期望的GCR继承到4对4级联LUT中以补偿不利地影响输出打印质量的打印引擎改变的新型系统和方法。本方法使用设备链接变换通过以足以确定输出节点的颜色空间分辨率将CMYK或RGB输入到设备链接中来生成漂移的打印机模型的倒数的起始LUT节点。实验室和CMYK值是从该过程得到的，并且在实验室目标节点处创建一个“起始LUT”。迭代控制开始于该起始LUT以产生包含对于预期GCR的近似近似的反漂移打印机模型。本方法捕获了针对车队的设备链接变换的意图，并生成用于漂移，特定打印机，side1 / side2和导致特殊GCR的其他模式的级联LUT。

14. 发明申请

US20110305389A1 HIERARCHICAL MULTIDIMENSIONAL LOOKUP TABLE GENERATION 有权
标题翻译：分层多元查找表生成
公开(公告)号：US20110305389A1
公开(公告)日：2011-12-15
申请号：US12815823
申请日：2010-06-15
申请人： Martin S. Maltz , Raja Bala , Lalit Keshav Mestha
发明人： Martin S. Maltz , Raja Bala , Lalit Keshav Mestha
IPC分类号： G06K9/00
CPC分类号： G06K9/00 , G06T11/001
摘要： What is disclosed is a novel system and method for generating a hierarchical LUT for implementing a color transformation within a color imaging system. In one embodiment, a coarse LUT is received which comprises a plurality of sub-cubes arrayed on a plurality of coarse levels on a structured coarse grid. Each of the sub-cubes encompasses at least one coarse LUT node. Sub-cubes in the coarse grid are identified that are bisected by a boundary surface of the gamut. Then, each of the identified coarse LUT sub-cubes are associated with fine LUT which comprises a plurality of fine LUT nodes arrayed on a plurality of fine levels on a structured fine grid. A hierarchical LUT is generated from the coarse LUT and the associated fine LUTs. Thereafter, the hierarchical LUT can be used for color transformation within a color imaging system.
摘要翻译：公开的是用于生成用于实现彩色成像系统内的颜色变换的分层LUT的新型系统和方法。在一个实施例中，接收粗略LUT，其包括排列在结构化粗网格上的多个粗略级上的多个子立方体。每个子立方体包含至少一个粗略LUT节点。识别粗网格中的子立方体，其被色域的边界面平分。然后，识别的粗略LUT子立方体中的每一个都与精细LUT相关联，该精细LUT包括排列在结构化细网格上的多个精细级上的多个精细LUT节点。从粗略LUT和相关联的精细LUT生成分层LUT。此后，分层LUT可以用于彩色成像系统内的颜色变换。

15. 发明授权

US08526727B2 Hierarchical multidimensional lookup table generation 有权
标题翻译：分层多维查找表生成
公开(公告)号：US08526727B2
公开(公告)日：2013-09-03
申请号：US12815823
申请日：2010-06-15
申请人： Martin S. Maltz , Raja Bala , Lalit Keshav Mestha
发明人： Martin S. Maltz , Raja Bala , Lalit Keshav Mestha
IPC分类号： G06K9/00 , G06K9/36 , G06K1/00 , G06F15/00 , H04N1/60 , G03F3/08 , G09G5/02
CPC分类号： G06K9/00 , G06T11/001
摘要： A system and method for generating a hierarchical LUT for implementing a color transformation within a color imaging system. In one embodiment, a coarse LUT is received which comprises a plurality of sub-cubes arrayed on a plurality of coarse levels on a structured coarse grid. Each of the sub-cubes encompasses at least one coarse LUT node. Sub-cubes in the coarse grid are identified that are bisected by a boundary surface of the gamut. Then, each of the identified coarse LUT sub-cubes are associated with fine LUT which comprises a plurality of fine LUT nodes arrayed on a plurality of fine levels on a structured fine grid. A hierarchical LUT is generated from the coarse LUT and the associated fine LUTs. Thereafter, the hierarchical LUT can be used for color transformation within a color imaging system.
摘要翻译：一种用于生成用于在彩色成像系统内实现颜色变换的分层LUT的系统和方法。在一个实施例中，接收粗略LUT，其包括排列在结构化粗网格上的多个粗略级上的多个子立方体。每个子立方体包含至少一个粗略LUT节点。识别粗网格中的子立方体，其被色域的边界面平分。然后，识别的粗略LUT子立方体中的每一个都与精细LUT相关联，该精细LUT包括排列在结构化细网格上的多个精细级上的多个精细LUT节点。从粗略LUT和相关联的精细LUT生成分层LUT。此后，分层LUT可以用于彩色成像系统内的颜色变换。

16. 发明授权

US08305636B2 Undercolor removal gray color replacement with improved device color linearity 有权
标题翻译：底色更换灰色更换，改进了设备颜色线性
公开(公告)号：US08305636B2
公开(公告)日：2012-11-06
申请号：US12391443
申请日：2009-02-24
申请人： Zhigang Fan , Martin S. Maltz , Yao Rong Wang , Alvaro Enrique Gil
发明人： Zhigang Fan , Martin S. Maltz , Yao Rong Wang , Alvaro Enrique Gil
IPC分类号： G06F15/00
CPC分类号： H04N1/40
摘要： A system and methods for performing UCR/GCR (Undercolor Removal/Gray Color Replacement) in a digital printer is provided. The system and method includes maximizing the linearity of a color mapping function mapping a device independent color to a device dependent color through linear filtering and performing color projection to ensure color accuracy. The system and methods reduces graininess of printed color images having flesh-tones by also including a K reduction step.
摘要翻译：提供了一种用于在数字打印机中执行UCR / GCR（底色去除/灰色替换）的系统和方法。该系统和方法包括通过线性滤波使得设备独立颜色映射到与器件相关的颜色的颜色映射函数的最大化，并执行颜色投影以确保颜色精度。该系统和方法通过还包括K还原步骤来减少具有肉色的印刷彩色图像的颗粒度。

17. 发明申请

US20100214616A1 UNDERCOLOR REMOVAL GRAY COLOR REPLACEMENT WITH IMPROVED DEVICE COLOR LINEARITY 有权
标题翻译：底漆去除灰色更换与改进的设备颜色线性
公开(公告)号：US20100214616A1
公开(公告)日：2010-08-26
申请号：US12391443
申请日：2009-02-24
申请人： Zhigang Fan , Martin S. Maltz , Yao Rong Wang , Alvaro Enrique Gil
发明人： Zhigang Fan , Martin S. Maltz , Yao Rong Wang , Alvaro Enrique Gil
IPC分类号： H04N1/40
CPC分类号： H04N1/40
摘要： A system and methods for performing UCR/GCR (Undercolor Removal/Gray Color Replacement) in a digital printer is provided. The system and method includes maximizing the linearity of a color mapping function mapping a device independent color to a device dependent color through linear filtering and performing color projection to ensure color accuracy. The system and methods reduces graininess of printed color images having flesh-tones by also including a K reduction step.
摘要翻译：提供了一种用于在数字打印机中执行UCR / GCR（底色去除/灰色替换）的系统和方法。该系统和方法包括通过线性滤波使得设备独立颜色映射到与器件相关的颜色的颜色映射函数的最大化，并执行颜色投影以确保颜色精度。该系统和方法通过还包括K还原步骤来减少具有肉色的印刷彩色图像的颗粒度。

18. 发明授权

US08228556B2 Control system for suppressing black in images 有权
标题翻译：抑制图像黑色的控制系统
公开(公告)号：US08228556B2
公开(公告)日：2012-07-24
申请号：US12390748
申请日：2009-02-23
申请人： Lalit Keshav Mestha , Martin S. Maltz
发明人： Lalit Keshav Mestha , Martin S. Maltz
IPC分类号： H04N1/60 , G03F3/08 , G06K9/00
CPC分类号： H04N1/6022 , H04N1/603
摘要： A computerized system, method, and software apparatus is presented which reduces the black level of the printing process in order to substantially remove stray black dots from the finished product of a printing output. Black levels are reduced by updating the print engine regions for the colors W, C, M, Y, MY, CM, CY, and neutral and by assigning a weights each color. The values are used to compute CMKY values. These values are then placed in a gain matrix and stored in a computer memory.
摘要翻译：提出了一种计算机化系统，方法和软件设备，其减少了印刷过程的黑色水平，以便从打印输出的成品中基本上去除杂散黑点。通过更新颜色W，C，M，Y，MY，CM，CY和中性的打印引擎区域，并通过为每种颜色分配权重来减少黑色等级。这些值用于计算CMKY值。然后将这些值放置在增益矩阵中并存储在计算机存储器中。

19. 发明申请

US20090296159A1 control system for suppressing black in images 有权
标题翻译：用于抑制图像中的黑色的控制系统
公开(公告)号：US20090296159A1
公开(公告)日：2009-12-03
申请号：US12390748
申请日：2009-02-23
申请人： Lalit Keshav Mestha , Martin S. Maltz
发明人： Lalit Keshav Mestha , Martin S. Maltz
IPC分类号： H04N1/407 , H04N1/60
CPC分类号： H04N1/6022 , H04N1/603
摘要： A computerized system, method, and software apparatus is presented which reduces the black level of the printing process in order to substantially remove stray black dots from the finished product of a printing output. Black levels are reduced by updating the print engine regions for the colors W, C, M, Y, MY, CM, CY, and neutral and by assigning a weights each color. The values are used to compute CMKY values. These values are then placed in a gain matrix and stored in a computer memory.
摘要翻译：提出了一种计算机化系统，方法和软件设备，其减少了印刷过程的黑色水平，以便从打印输出的成品中基本上去除杂散黑点。通过更新颜色W，C，M，Y，MY，CM，CY和中性的打印引擎区域，并通过为每种颜色分配权重来减少黑色等级。这些值用于计算CMKY值。然后将这些值放置在增益矩阵中并存储在计算机存储器中。

20. 发明授权

US07307752B1 On-line calibration system for a dynamically varying color marking device 有权
标题翻译：用于动态变化的彩色打标设备的在线校准系统
公开(公告)号：US07307752B1
公开(公告)日：2007-12-11
申请号：US09566291
申请日：2000-05-05
申请人： Lingappa K. Mestha , Peter A. Crean , Martin S. Maltz , Robert J. Rolleston , Yao Rong Wang , Eric Jackson , Thyagarajan Balasubramanian
发明人： Lingappa K. Mestha , Peter A. Crean , Martin S. Maltz , Robert J. Rolleston , Yao Rong Wang , Eric Jackson , Thyagarajan Balasubramanian
IPC分类号： G06F15/00 , H04N1/46 , G03F3/08
CPC分类号： G06F15/00 , H04N1/4078 , H04N1/6027 , H04N1/6033
摘要： A color marking device including a control system for calibration of the device based upon dynamic color balance control of an output image. The system comprises a front end converter for converting an input signal representative of a target image comprising a preselected color into a device-dependent control signal in accordance with a device TRC, a color marking device for outputting an output image in response to the control signal, a sensor for measuring a parameter from the output image representative of a color of the output image, and, a point-wise controller for comparing the parameter with a corresponding parameter from the target image and constructing adjusted controlled points for the device TRC when the measured parameter and the corresponding parameter vary by a preselected value, a color balance controller for constructing an adjusted device TRC from the controlled points, whereby subsequently generated output images are output with the adjusted device TRC and, more accurately represent target input images.
摘要翻译：一种彩色标记装置，包括基于输出图像的动态色彩平衡控制来校准装置的控制系统。该系统包括：前端转换器，用于根据设备TRC将表示包括预选颜色的目标图像的输入信号转换成依赖于设备的控制信号;响应于控制信号输出输出图像的颜色标记装置，用于从表示输出图像的颜色的输出图像中测量参数的传感器，以及用于将参数与来自目标图像的相应参数进行比较的逐点控制器，并且当所述设备TRC的调整的控制点在测量参数和相应的参数由预选值变化，用于从受控点构建调整的设备TRC的色平衡控制器，由此随后生成的输出图像被调整的设备TRC输出，并且更精确地表示目标输入图像。

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