公开(公告)号：US07277196B2

公开(公告)日：2007-10-02

申请号：US10342873

申请日：2003-01-15

申请人： Jean-Pierre R. M. Van de Capelle ,  Lalit K. Mestha ,  Robert P. Loce ,  Raja Bala ,  Martin S. Maltz ,  Peter A. Crean

发明人： Jean-Pierre R. M. Van de Capelle ,  Lalit K. Mestha ,  Robert P. Loce ,  Raja Bala ,  Martin S. Maltz ,  Peter A. Crean

IPC分类号： G06F15/00

CPC分类号： H04N1/4078 ,  H04N1/6033

摘要： A system and method for printer control and color balance calibration. The system and method address the image quality problems of print engine instability, low quality of color balance and contouring from the calibration. The method includes defining combinations of colorants, such as inks or toners that will be used to print images, defining a desired response for the combinations that are to be used and, in real time, iteratively printing CMY halftone color patches, measuring the printed patches via an in situ sensor and iteratively performing color-balance calibration based on the measurements, accumulating corrections until the measurements are within a predetermined proximity of the desired response. The calibration is performed on the halftones while they are in a high quantization resolution form.

摘要翻译： 一种用于打印机控制和色平衡校准的系统和方法。 该系统和方法解决了打印引擎不稳定的图像质量问题，色彩平衡质量差和校准轮廓。 该方法包括定义着色剂的组合，例如将用于打印图像的油墨或调色剂，为要使用的组合定义期望的响应，并且实时迭代地打印CMY半色调色块，测量印刷的贴片 通过原位传感器并且基于测量迭代地执行色平衡校准，累积校正直到测量值在所需响应的预定接近度内。 校准在半色调上进行，而它们处于高量化分辨率形式。

公开(公告)号：US07355752B2

公开(公告)日：2008-04-08

申请号：US10465408

申请日：2003-06-18

申请人： Gaurav Sharma ,  Raja Bala ,  Jean-Pierre R. N. Van de Capelle ,  Martin S. Maltz ,  Lalit K. Mestha

发明人： Gaurav Sharma ,  Raja Bala ,  Jean-Pierre R. N. Van de Capelle ,  Martin S. Maltz ,  Lalit K. Mestha

IPC分类号： H04N1/50 ,  H04N1/56

CPC分类号： H04N1/50 ,  G09G5/04 ,  G09G2320/0276 ,  G09G2320/0693 ,  H04N1/603

摘要： A color output device is generally driven by at least three independent control signals for control of its response. A desired response in device independent color space is normally obtained by employing a cascade consisting of a characterization transform and calibration transform. The calibration transform transforms input control variables into output control variables that are directly used to drive the device. Input control variables can be transformed into intermediate control variables, which can be then mapped to output control variables utilizing a two-dimensional transformation. The two-dimensional calibration architecture provides improved control functionality and flexibility.

摘要翻译： 颜色输出装置通常由至少三个独立的控制信号驱动，以控制其响应。 通常通过使用由特征变换和校准变换组成的级联来获得器件独立色彩空间中的期望响应。 校准变换将输入控制变量转换为直接用于驱动器件的输出控制变量。 输入控制变量可以转换为中间控制变量，然后可以使用二维变换将其映射到输出控制变量。 二维校准架构提供了改进的控制功能和灵活性。

公开(公告)号：US07884964B2

公开(公告)日：2011-02-08

申请号：US10635381

申请日：2003-08-05

申请人： Martin S. Maltz ,  Raja Bala ,  Lalit K. Mestha

发明人： Martin S. Maltz ,  Raja Bala ,  Lalit K. Mestha

IPC分类号： G06F15/00 ,  G06K9/00

CPC分类号： H04N1/6058

摘要： Methods and systems in an image processing device for controlling colors that are located external to a gamut are disclosed. A plurality of color values can be automatically provided as input to said image processing device, wherein said image processing device is under a control of a particular dimensional order, typically a three-dimensional order, but alternatively can be a two-dimensional order. Next, an operation can be performed dynamically determining which color value among the plurality of color values has attained a gamut limit. Thereafter, the particular dimensional order can be automatically reduced, thereby providing improved control for colors that are located external to said gamut. The plurality of color values analyzed is generally associated with three colors—cyan, magenta, and yellow.

摘要翻译： 公开了用于控制位于色域外部的颜色的图像处理装置中的方法和系统。 可以将多个颜色值自动提供给所述图像处理装置的输入，其中所述图像处理装置处于特定尺寸顺序的控制下，通常为三维顺序，但是可替代地可以是二维顺序。 接下来，可以动态地确定多个颜色值中的哪个颜色值已经达到色域限制的操作。 此后，可以自动减小特定尺寸顺序，从而对位于所述色域外部的颜色提供改进的控制。 分析的多个颜色值通常与三种颜色（青色，品红色和黄色）相关联。

公开(公告)号：US08134547B2

公开(公告)日：2012-03-13

申请号：US12177178

申请日：2008-07-22

申请人： Alvaro E. Gil ,  Lalit K. Mestha ,  Martin S. Maltz

发明人： Alvaro E. Gil ,  Lalit K. Mestha ,  Martin S. Maltz

IPC分类号： H04N1/60 ,  G06K9/00 ,  G06T15/30

CPC分类号： G09G5/02 ,  G09G2340/06 ,  H04N1/6058

摘要： What is disclosed is a system and method for merit-based gamut mapping. In one embodiment, color points are clustered in regions of interest within a color space. Each cluster is associated with a gamut mapping function and a merit function. Mapping parameters of each gamut mapping function are iteratively varied to optimize the values based on the merit function value. An optimized gamut mapping function results. Optimized gamut mapping functions of adjacent clusters are blended together by blending the value of the gamut mapping function for a point of a cluster with a value produced by the gamut mapping function of an adjacent cluster for that color point. The composite gamut mapping function contains the optimized gamut mapping functions of all clusters is then output for use in mapping points within those clusters to points within the target gamut. The composite gamut mapping function exploits local advantages of each cluster.

摘要翻译： 公开的是基于优点的色域映射的系统和方法。 在一个实施例中，色点在颜色空间内聚集在感兴趣的区域中。 每个簇与色域映射函数和优值函数相关联。 每个色域映射函数的映射参数被迭代地改变，以根据优值函数值优化值。 优化的色域映射功能结果。 通过将簇的一个点的色域映射函数的值与该色点的相邻簇的色域映射函数产生的值混合，将相邻簇的优化色域映射函数混合在一起。 复合色域映射函数包含所有簇的优化色域映射函数，然后被输出以用于将这些簇内的点映射到目标色域内的点。 复合色域映射功能利用了每个集群的本地优势。

公开(公告)号：US07738140B2

公开(公告)日：2010-06-15

申请号：US11507405

申请日：2006-08-21

申请人： Joseph D. Hancock ,  Peter S. Fisher ,  Lalit K. Mestha ,  Kenneth J. Mihalyov ,  Tonya L. Love ,  Peter A. Crean ,  Matthew F. Hoffmann

发明人： Joseph D. Hancock ,  Peter S. Fisher ,  Lalit K. Mestha ,  Kenneth J. Mihalyov ,  Tonya L. Love ,  Peter A. Crean ,  Matthew F. Hoffmann

IPC分类号： G03F3/08 ,  G06K15/00 ,  G06K9/00 ,  H04N1/40

CPC分类号： H04N1/6033

摘要： Provided is a method for enabling accurate and consistent imaging of selected colors within a document for various printing device configurations utilizing an automated spot color editor. The method includes determining appropriate target values for a selected color within a print job. The automated spot color editor modifies or adjusts the selected color by selecting a quality level, in the form of a color difference metric, and a maximum number of iterations, which is the maximum number of times the automated spot color editor is operated to calculate a CMYK color formula. Sample patch(es) are printed and analyzed for the selected target value and a CMYK color formula based on the color composition of the sample patch is calculated. The CMYK color formula is inserted into a spot color editing table. Through a graphical user interface, an operator may review the color formula for acceptance.

摘要翻译： 提供了一种用于使用自动专色编辑器对用于各种打印设备配置的文档内的所选颜色进行精确和一致的成像的方法。 该方法包括确定打印作业内所选颜色的适当目标值。 自动专色编辑器通过以色差度量和最大迭代次数的形式选择质量水平来修改或调整所选颜色，这是自动专色编辑器运行以计算一次的最大次数 CMYK颜色公式。 打印并分析样品贴片用于所选择的目标值，并计算基于样品贴片的颜色组成的CMYK颜色公式。 将CMYK颜色公式插入专色编辑表。 通过图形用户界面，操作员可以检查颜色公式以进行验收。

公开(公告)号：US20080043263A1

公开(公告)日：2008-02-21

申请号：US11507405

申请日：2006-08-21

申请人： Joseph D. Hancock ,  Peter S. Fisher ,  Lalit K. Mestha ,  Kenneth J. Mihalyov ,  Tonya L. Love ,  Peter A. Crean ,  Matthew F. Hoffmann

发明人： Joseph D. Hancock ,  Peter S. Fisher ,  Lalit K. Mestha ,  Kenneth J. Mihalyov ,  Tonya L. Love ,  Peter A. Crean ,  Matthew F. Hoffmann

IPC分类号： G03F3/08

CPC分类号： H04N1/6033

摘要： Provided is a method for enabling accurate and consistent imaging of selected colors within a document for various printing device configurations utilizing an automated spot color editor. The method includes determining appropriate target values for a selected color within a print job. The automated spot color editor modifies or adjusts the selected color by selecting a quality level, in the form of a color difference metric, and a maximum number of iterations, which is the maximum number of times the automated spot color editor is operated to calculate a CMYK color formula. Sample patch(es) are printed and analyzed for the selected target value and a CMYK color formula based on the color composition of the sample patch is calculated. The CMYK color formula is inserted into a spot color editing table. Through a graphical user interface, an operator may review the color formula for acceptance.

摘要翻译： 提供了一种用于使用自动专色编辑器对用于各种打印设备配置的文档内的所选颜色进行精确和一致的成像的方法。 该方法包括确定打印作业内所选颜色的适当目标值。 自动专色编辑器通过以色差度量和最大迭代次数的形式选择质量水平来修改或调整所选颜色，这是自动专色编辑器运行以计算一次的最大次数 CMYK颜色公式。 打印并分析样品贴片用于所选择的目标值，并计算基于样品贴片的颜色组成的CMYK颜色公式。 将CMYK颜色公式插入专色编辑表。 通过图形用户界面，操作员可以检查颜色公式以进行验收。

公开(公告)号：US07206099B2

公开(公告)日：2007-04-17

申请号：US10196837

申请日：2002-07-16

申请人： Grace T. Brewington ,  Peter A. Crean ,  Lalit K. Mestha ,  Gary W. Skinner

发明人： Grace T. Brewington ,  Peter A. Crean ,  Lalit K. Mestha ,  Gary W. Skinner

IPC分类号： H04N1/405

CPC分类号： H04N1/40006 ,  H04N1/4076 ,  H04N1/6097

摘要： In an image rendering system, a method of compensating for system performance changes related to image attributes includes rendering a diagnostic image, sensing at least one image quality from the diagnostic image, updating an image attribute compensation tone reproduction curve based on the sensed image quality and rendering an image based on the updated image attribute compensation tone reproduction curve. For example, image attributes include print media type and a halftone screen selection. An image processing system operative to perform the method of compensation includes a set of image attribute compensation tone reproduction curves. Each curve of the set is associated with a particular combination of image attributes. For example, each curve is associated with a particular media type/halftone screen combination.

摘要翻译： 在图像渲染系统中，补偿与图像属性相关的系统性能改变的方法包括渲染诊断图像，从诊断图像感测至少一个图像质量，基于感测图像质量更新图像属性补偿色调再现曲线，以及 基于更新的图像属性补偿色调再现曲线渲染图像。 例如，图像属性包括打印介质类型和半色调屏幕选择。 可执行补偿方法的图像处理系统包括一组图像属性补偿色调再现曲线。 该集合的每个曲线与图像属性的特定组合相关联。 例如，每个曲线与特定的媒体类型/半色调屏幕组合相关联。

公开(公告)号：US07729015B2

公开(公告)日：2010-06-01

申请号：US11313018

申请日：2005-12-20

申请人： Howard A. Mizes ,  Robert P. Loce ,  Lalit K. Mestha ,  Peter Paul

发明人： Howard A. Mizes ,  Robert P. Loce ,  Lalit K. Mestha ,  Peter Paul

IPC分类号： G06K15/00 ,  H04N1/405 ,  H04N1/46

CPC分类号： H04N1/6033 ,  H04N1/4015 ,  H04N1/6041

摘要： Multiple input patches are received on an output media, which patches are characterized by print density representing a document processing system's response to different input grayscale values over a potential response space. Values associated with the print density of each input grayscale value are measured. Reference Engine Response Curves are determined from the measured print density values and input gray scale values. A variance data representative of a difference between each measured print density value and a respective reference Engine Response Curve is determined. The variance data is transformed into individual components. Based at least on one selected individual component, a set of calibration compensating Tone Reproduction Curves is determined. The determined calibration compensating Tone Reproduction Curves are applied to input grayscale values.

摘要翻译： 在输出介质上接收多个输入补丁，这些补丁的特征在于打印密度，表示文档处理系统对潜在响应空间上的不同输入灰度值的响应。 测量与每个输入灰度值的打印浓度相关联的值。 参考引擎响应曲线由测量的打印浓度值和输入灰度值确定。 确定表示每个测量的打印浓度值和各个参考引擎响应曲线之间的差异的方差数据。 方差数据被转换为单个组件。 至少基于一个所选择的单独组件，确定一组校准补偿音再现曲线。 确定的校准补偿色调再现曲线被应用于输入灰度值。

公开(公告)号：US07835036B2

公开(公告)日：2010-11-16

申请号：US11125897

申请日：2005-05-02

申请人： Lalit K. Mestha ,  Raja Bala ,  Reiner Eschbach

发明人： Lalit K. Mestha ,  Raja Bala ,  Reiner Eschbach

IPC分类号： H04N1/40 ,  H04N1/46 ,  G03F3/08

CPC分类号： G06K15/02 ,  G03G15/5029 ,  G03G2215/00751

摘要： Identifying the substrate type of a target substrate before patterning by a marking engine produces an opportunity to adjust the marking engine. The adjustments can enable the marking engine to produce higher quality work. The target substrate's substrate type can be automatically identified by obtaining its characteristics and submitting them to a classifier. A spectrophotometer can measure a substrates reflectance spectrum, which is a good characteristic for use in classifying. Classifiers can be based on known distance or correlation measures.

摘要翻译： 在通过标记引擎构图之前识别目标衬底的衬底类型产生调整标记引擎的机会。 调整可以使打标机产生更高质量的工作。 目标基板的基板类型可以通过获得其特性并将其提交给分类器来自动识别。 分光光度计可以测量底物反射光谱，这是分类中使用的良好特性。 分类器可以基于已知距离或相关性度量。

公开(公告)号：US06750442B2

公开(公告)日：2004-06-15

申请号：US10093220

申请日：2002-03-06

申请人： Raja Bala ,  Lalit K. Mestha ,  Robert J. Rolleston

发明人： Raja Bala ,  Lalit K. Mestha ,  Robert J. Rolleston

IPC分类号： G01J350

CPC分类号： H04N1/6094 ,  H04N1/603

摘要： An image transfer apparatus with a scanner and a spectrophotometric sensor interacting logically with the scanner. When the scanner scans a medium containing a color image, the spectrophotometric sensor interacts with the scanner to aid in the automatic selection of a scanner color correction corresponding to the medium being scanned.

摘要翻译： 具有扫描器和分光光度传感器的图像传送装置与扫描仪逻辑地相互作用。 当扫描仪扫描含有彩色图像的介质时，分光光度传感器与扫描仪相互作用，以帮助自动选择与被扫描介质相对应的扫描仪颜色校正。