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1. 发明授权

US07486416B2 Inter-separation decorrelator 有权
标题翻译：分离间去相干器
公开(公告)号：US07486416B2
公开(公告)日：2009-02-03
申请号：US11143818
申请日：2005-06-02
申请人： Edul N. Dalal , Wencheng Wu , Robert P. Loce , Raja Bala , Yeqing Zhang , Norman W. Zeck
发明人： Edul N. Dalal , Wencheng Wu , Robert P. Loce , Raja Bala , Yeqing Zhang , Norman W. Zeck
IPC分类号： H04N1/60 , H04N1/04 , G03F3/08 , G06K15/00 , G06K9/00
CPC分类号： H04N1/6038 , H04N1/6041
摘要： Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spatially dependent single colorant compensating functions for compensating for the other aspects of the spatially dependent colorant appearance nonuniformities may also be determined. Image data is processed through the decorrelating function, thereby generating colorant values that are compensated for spatially dependent colorant interaction effects. Optionally, image data is also processed through the spatially dependent single colorant compensating functions, thereby generating colorant values that are compensated for both aspects of colorant appearance nonuniformities. The two kinds of compensating functions may be determined, calibrated and/or stored at different spatial and temporal frequencies or resolutions. One or both of the compensating functions may be employed to maintain consistency across a plurality of rendering devices (e.g., marking engines).
摘要翻译：从空间依赖的着色剂外观不均匀性的其他方面鉴定和分离空间依赖性着色剂相互作用效应。确定用于补偿所识别的空间依赖着色剂相互作用效应的去相关函数。还可以确定用于补偿空间依赖着色剂外观不均匀性的其它方面的空间依赖性单色剂补偿功能。图像数据通过去相关功能进行处理，从而产生对空间依赖的着色剂相互作用效应进行补偿的着色剂值。可选地，还通过空间依赖的单一着色剂补偿功能来处理图像数据，由此产生着色剂值，其对着色剂外观不均匀性的两个方面进行补偿。可以在不同的空间和时间频率或分辨率下确定，校准和/或存储两种补偿功能。可以采用一种或两种补偿功能来保持多个渲染设备（例如，标记引擎）之间的一致性。

2. 发明授权

US07933053B2 Fine tuning color dictionaries 有权
标题翻译：微调颜色字典
公开(公告)号：US07933053B2
公开(公告)日：2011-04-26
申请号：US11607643
申请日：2006-12-01
申请人： Edul N. Dalal , Wencheng Wu , Raja Bala
发明人： Edul N. Dalal , Wencheng Wu , Raja Bala
IPC分类号： G03F3/08
CPC分类号： H04N1/6058 , H04N1/60
摘要： A spot color dictionary is fine tuned or updated. Localized color production models are determined for spot colors of interest to be produced by an associated document processing system or printer. Measurements are made of colors of produced spot colors. Optionally, measurements are made of colors of test patches that are based on perturbations from the colors of the spot colors. In determining a model for the production of a target spot color, measurement data related to colors that are closer in color space to a given target color is given a higher weight than is measurement data related to colors that are further in color space from the target color. Accordingly, the model is localized to the region of color space about the target color and therefore, more accurately predicts a colorant recipe for the target color than would interpolation based on a full gamut, or more general model.
摘要翻译：专色字典被微调或更新。确定由相关的文件处理系统或打印机生产的感兴趣的专色的本地化颜色生产模型。测量产生的专色的颜色。可选地，测量基于来自专色颜色的扰动的测试贴片的颜色。在确定用于生产目标专色的模型时，与颜色空间相对于给定目标颜色更接近的颜色的测量数据被给予比与从目标进一步在颜色空间中进一步相关的颜色的测量数据更高的权重颜色。因此，该模型被定位于关于目标颜色的颜色空间区域，因此，比基于全色域或更一般的模型的内插更准确地预测目标颜色的着色剂配方。

3. 发明授权

US08305667B2 Systems and methods for forming a tint of a spot color 有权
标题翻译：用于形成专色色调的系统和方法
公开(公告)号：US08305667B2
公开(公告)日：2012-11-06
申请号：US12424586
申请日：2009-04-16
申请人： Edul N. Dalal , Wencheng Wu , Raja Bala
发明人： Edul N. Dalal , Wencheng Wu , Raja Bala
IPC分类号： H04N1/46
CPC分类号： H04N1/603
摘要： Systems and methods are provided for rendering tints of spot color objects or target colors between a spot color and a second color in image forming devices. In particular the systems and method provided allow for a sweep of a spot color to be rendered accurately, without discontinuities when transitioning from the tint to the solid spot color. The systems and method will prevent discontinuities even if the solid spot color has been modified by a user.
摘要翻译：提供了系统和方法，用于在图像形成装置中渲染专色对象或专色和第二颜色之间的目标颜色的色调。特别地，所提供的系统和方法允许专色的扫描被精确地渲染，而从色调转变为固体斑点颜色时没有不连续性。即使固体斑点颜色已被用户修改，系统和方法也将防止不连续性。

4. 发明授权

US07652791B2 Reprinting 有权
标题翻译：转载
公开(公告)号：US07652791B2
公开(公告)日：2010-01-26
申请号：US11488355
申请日：2006-07-18
申请人： Ann L. McCarthy , Edul N. Dalal , Wencheng Wu , Dale R. Mashtare , Raja Bala
发明人： Ann L. McCarthy , Edul N. Dalal , Wencheng Wu , Dale R. Mashtare , Raja Bala
IPC分类号： G06F3/12
CPC分类号： H04N1/6055 , G06F3/1204 , G06F3/1208 , G06F3/1234 , G06F3/1273 , H04N1/40006 , H04N1/6011
摘要： Consistency of document reprints is improved by recording characteristics of a reference printing system used to produce a reference printing of a document, determining related characteristics of a reprint printing system, retrieving the recorded characteristics and compensating for differences between the reference system and the reprint system in the reprint system prior to using the reprint system to produce reprints of the document. Analytical test prints (TPs) are produced with the respective printing systems in close temporal association to the production of the respective reference prints and reprints. TPs can be customized according to aspects of the document. TP customization allows the compensation to address aspects of the printing systems that have a bearing on perceived consistency in the reprints. TPs can be customized with regard to colors in test patches or both the colors and locations of test patches on a page. Compensation is based on measurements of the TPs.
摘要翻译：通过记录用于生成文档的参考打印的参考打印系统的特性来改进文档重印的一致性，确定重印打印系统的相关特征，检索记录的特性并补偿参考系和重印系统之间的差异在重印系统使用转印系统之前，重印系统可以重印本文档。分析测试印刷品（TP）与相应的印刷系统一起生产，与相应的参考印刷品的印刷和重印相关。 TP可以根据文档的方面进行定制。 TP定制允许补偿来处理与重印中感知到的一致性有关的打印系统的方面。 TP可以针对测试补丁中的颜色或页面上测试补丁的颜色和位置进行定制。补偿是基于TP的测量。

5. 发明申请

US20070268502A1 Reprinting 有权
标题翻译：转载
公开(公告)号：US20070268502A1
公开(公告)日：2007-11-22
申请号：US11488355
申请日：2006-07-18
申请人： Ann L. McCarthy , Edul N. Dalal , Wencheng Wu , Dale R. Mashtare , Raja Bala
发明人： Ann L. McCarthy , Edul N. Dalal , Wencheng Wu , Dale R. Mashtare , Raja Bala
IPC分类号： G06F3/12
CPC分类号： H04N1/6055 , G06F3/1204 , G06F3/1208 , G06F3/1234 , G06F3/1273 , H04N1/40006 , H04N1/6011
摘要： Consistency of document reprints is improved by recording characteristics of a reference printing system used to produce a reference printing of a document, determining related characteristics of a reprint printing system, retrieving the recorded characteristics and compensating for differences between the reference system and the reprint system in the reprint system prior to using the reprint system to produce reprints of the document. Analytical test prints (TPs) are produced with the respective printing systems in close temporal association to the production of the respective reference prints and reprints. TPs can be customized according to aspects of the document. TP customization allows the compensation to address aspects of the printing systems that have a bearing on perceived consistency in the reprints. TPs can be customized with regard to colors in test patches or both the colors and locations of test patches on a page. Compensation is based on measurements of the TPs.
摘要翻译：通过记录用于生成文档的参考打印的参考打印系统的特性来改进文档重印的一致性，确定重印打印系统的相关特征，检索记录的特性并补偿参考系和重印系统之间的差异在重印系统使用转印系统之前，重印系统可以重印本文档。分析测试印刷品（TP）与相应的印刷系统一起生产，与相应的参考印刷品的印刷和重印相关。 TP可以根据文档的方面进行定制。 TP定制允许补偿来处理与重印中感知到的一致性有关的打印系统的方面。 TP可以针对测试补丁中的颜色或页面上测试补丁的颜色和位置进行定制。补偿是基于TP的测量。

6. 发明申请

US20080130022A1 Fine tuning color dictionaries 有权
标题翻译：微调颜色字典
公开(公告)号：US20080130022A1
公开(公告)日：2008-06-05
申请号：US11607643
申请日：2006-12-01
申请人： Edul N. Dalal , Wencheng Wu , Raja Bala
发明人： Edul N. Dalal , Wencheng Wu , Raja Bala
IPC分类号： G06F15/00
CPC分类号： H04N1/6058 , H04N1/60
摘要： A spot color dictionary is fine tuned or updated. Localized color production models are determined for spot colors of interest to be produced by an associated document processing system or printer. Measurements are made of colors of produced spot colors. Optionally, measurements are made of colors of test patches that are based on perturbations from the colors of the spot colors. In determining a model for the production of a target spot color, measurement data related to colors that are closer in color space to a given target color is given a higher weight than is measurement data related to colors that are further in color space from the target color. Accordingly, the model is localized to the region of color space about the target color and therefore, more accurately predicts a colorant recipe for the target color than would interpolation based on a full gamut, or more general model.
摘要翻译：专色字典被微调或更新。确定由相关的文件处理系统或打印机生产的感兴趣的专色的本地化颜色生产模型。测量产生的专色的颜色。可选地，测量基于来自专色颜色的扰动的测试贴片的颜色。在确定用于生产目标专色的模型时，与颜色空间相对于给定目标颜色更接近的颜色的测量数据被给予比与从目标进一步在颜色空间中进一步相关的颜色的测量数据更高的权重颜色。因此，该模型被定位于关于目标颜色的颜色空间区域，因此，比基于全色域或更一般的模型的内插更准确地预测目标颜色的着色剂配方。

7. 发明授权

US08154777B2 Color compensation of images 失效
标题翻译：图像颜色补偿
公开(公告)号：US08154777B2
公开(公告)日：2012-04-10
申请号：US11200227
申请日：2005-08-09
申请人： Yeqing Zhang , Robert P. Loce , Raja Bala
发明人： Yeqing Zhang , Robert P. Loce , Raja Bala
IPC分类号： G03F3/08 , G06F15/00
CPC分类号： H04N1/6016
摘要： A color correction method includes for each of a plurality of color separations of a digital image, establishing a tone reproduction curve in the form of a vector. The vector is a function of a plurality of basis vectors. The basis vectors account for colorant interactions between a primary colorant with which the color separation is to be rendered and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered. The vector includes modified input values corresponding to input values for the color separation which vary, depending on the input values of at least the second color separation. For a pixel of interest in the digital image, a modified input value for the color separation which corresponds to the input value of the given color separation is identified from the vector.
摘要翻译：颜色校正方法包括数字图像的多个分色中的每一个，建立矢量形式的色调再现曲线。向量是多个基本向量的函数。基本向量涉及要与其进行分色的主要着色剂和至少一种次要着色剂之间的着色剂相互作用，至少一个次要着色剂将使多个分色中的至少一个分色进行再现。矢量包括对应于颜色分离的输入值的修改的输入值，其根据至少第二颜色分离的输入值而变化。对于数字图像中感兴趣的像素，从向量中识别对应于给定颜色分离的输入值的颜色分离的修改输入值。

8. 发明授权

US07864364B2 Color correction of images 失效
标题翻译：图像颜色校正
公开(公告)号：US07864364B2
公开(公告)日：2011-01-04
申请号：US11199692
申请日：2005-08-09
申请人： Yeqing Zhang , Robert P. Loce , Raja Bala
发明人： Yeqing Zhang , Robert P. Loce , Raja Bala
IPC分类号： G03F3/08 , G06F15/00
CPC分类号： H04N1/6027
摘要： A color transformation method which accounts for colorant interactions includes establishing a plurality of tone reproduction curves (TRCs), for one or more of the color separations forming a digital image. Each TRC accounts for colorant interactions between a primary colorant with which the first color separation is to be rendered and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered. The TRCs include input values and their corresponding modified input values. In a given TRC, the input values of the second and optionally other color separations are fixed. For a pixel of the digital image having a given input values for the first and second color separation one or more of the TRCs are selected which bound the fixed input value for the second color separation and a modified input value is determined therefrom.
摘要翻译：考虑着色剂相互作用的颜色变换方法包括为形成数字图像的一个或多个分色建立多个色调再现曲线（TRC）。每个TRC考虑到将要渲染第一颜色分离的主要着色剂与至少一种次要着色剂之间的着色剂相互作用，至少一个次要着色剂将使多个分色中的至少一个分色进行渲染。 TRC包括输入值及其对应的修改输入值。在给定的TRC中，第二个和任选的其他分色的输入值是固定的。对于具有用于第一和第二颜色分离的给定输入值的数字图像的像素，选择一个或多个TRC，其限定用于第二颜色分离的固定输入值，并且从其确定修改的输入值。

9. 发明申请

US20060274337A1 Inter-separation decorrelator 有权
公开(公告)号：US20060274337A1
公开(公告)日：2006-12-07
申请号：US11143818
申请日：2005-06-02
申请人： Edul Dalal , Wencheng Wu , Robert Loce , Raja Bala , Yeqing Zhang , Norman Zeck
发明人： Edul Dalal , Wencheng Wu , Robert Loce , Raja Bala , Yeqing Zhang , Norman Zeck
IPC分类号： G06F15/00
CPC分类号： H04N1/6038 , H04N1/6041
摘要： Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spatially dependent single colorant compensating functions for compensating for the other aspects of the spatially dependent colorant appearance nonuniformities may also be determined. Image data is processed through the decorrelating function, thereby generating colorant values that are compensated for spatially dependent colorant interaction effects. Optionally, image data is also processed through the spatially dependent single colorant compensating functions, thereby generating colorant values that are compensated for both aspects of colorant appearance nonuniformities. The two kinds of compensating functions may be determined, calibrated and/or stored at different spatial and temporal frequencies or resolutions. One or both of the compensating functions may be employed to maintain consistency across a plurality of rendering devices (e.g., marking engines).

10. 发明授权

US08077352B2 GAMUT aim and GAMUT mapping method for spatially varying color lookup tables 有权
标题翻译：用于空间变化颜色查找表的GAMUT目标和GAMUT映射方法
公开(公告)号：US08077352B2
公开(公告)日：2011-12-13
申请号：US12359649
申请日：2009-01-26
申请人： Edgar Bernal , Robert P Loce , Raja Bala
发明人： Edgar Bernal , Robert P Loce , Raja Bala
IPC分类号： G06F15/00
CPC分类号： H04N1/60 , H04N1/409
摘要： An image processing apparatus, program product, and method determine an achievable gamut achievable by the imaging engine or engines for all spatial locations of an output image, or all utilized print engines. A reference gamut is calculated which is any gamut containing the achievable gamut. A gamut mapping is used to map gamuts from the mean gamut to the achievable gamut, and a set of transformations is calculated for each of a set of input colors to a set of target colors selected from colors in the achievable gamut. Values for a received digital image are transformed for each image pixel or clusters of pixels based on the calculated set of transformations. Output images are generated based on the transformed values.
摘要翻译：图像处理装置，程序产品和方法确定由输出图像或所有使用的打印引擎的所有空间位置的成像引擎或引擎可实现的可实现色域。计算参考色域，其中包含可实现色域的任何色域。色域映射用于将色域从均匀色域映射到可实现色域，并且将一组输入颜色中的每一个计算为从可实现色域中的颜色中选择的一组目标颜色的一组变换。基于所计算的变换集合，针对每个图像像素或像素簇变换接收数字图像的值。基于变换后的值生成输出图像。

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