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51. 发明授权

US08649054B2 Color registration strategy for preprinted form 有权
标题翻译：预印表格的颜色注册策略
公开(公告)号：US08649054B2
公开(公告)日：2014-02-11
申请号：US12772657
申请日：2010-05-03
申请人： Wencheng Wu , Edul N. Dalal
发明人： Wencheng Wu , Edul N. Dalal
IPC分类号： G06K1/00 , G06K9/00 , B41J2/385 , G03G15/01
CPC分类号： H04N1/50 , B41J2/2135 , B41J11/46
摘要： A method for performing color registration on template media having template markings thereon comprises sensing the template media using a sensor to obtain first image data; printing a test pattern on the template media; sensing the template media along with the test pattern printed thereon using the sensor to obtain second image data; determining an output image data of the test pattern from the first image data, the second image data, and an estimated image data of the template media with the test pattern printed thereon; determining process direction and cross-process direction misregistrations from the output image data; and adjusting printheads based on the process direction and the cross-process direction misregistrations to provide adjusted color registration on subsequent template media. The estimated image data is representative of light scatter from the test pattern and light absorption by the test pattern.
摘要翻译：用于在其上具有模板标记的模板介质上进行颜色配准的方法包括使用传感器感测模板介质以获得第一图像数据; 在模板媒体上打印测试图案; 使用所述传感器与所述测试图案一起感测所述模板介质以获得第二图像数据; 从所述第一图像数据，所述第二图像数据和所述测试图案上印刷的所述模板介质的估计图像数据确定所述测试图案的输出图像数据; 从输出图像数据确定处理方向和交叉处理方向不对准; 以及基于过程方向和交叉过程方向不对准来调整打印头，以在随后的模板介质上提供调整的颜色配准。估计的图像数据表示来自测试图案的光散射和测试图案的光吸收。

52. 发明申请

US20130343645A1 COLOR MATRIX CODE 有权
标题翻译：颜色矩阵代码
公开(公告)号：US20130343645A1
公开(公告)日：2013-12-26
申请号：US13533459
申请日：2012-06-26
申请人： Edul N. Dalal , Wencheng Wu
发明人： Edul N. Dalal , Wencheng Wu
IPC分类号： G06K9/00
CPC分类号： G06K7/1408 , G06K2019/06225
摘要： When an imaging device receives an image file that includes a color barcode, a processor of the imaging device and/or a remote processor may decode the barcode by identifying informational elements and calibration elements in the barcode. When the calibration elements are detected, one or more color model parameters are determined, and a color model is developed. When an informational element is then detected, a color value is determined for the informational element, the color model is applied using the color model parameters to yield an adjusted color value for the informational element, and the adjusted color value is used to decode the color barcode.
摘要翻译：当成像设备接收到包括彩色条形码的图像文件时，成像设备的处理器和/或远程处理器可以通过识别条形码中的信息元素和校准元件来对条形码进行解码。当检测到校准元件时，确定一个或多个颜色模型参数，并且开发颜色模型。当检测到信息元素时，为信息元素确定颜色值，使用颜色模型参数应用颜色模型以产生用于信息元素的调整颜色值，并且调整后的颜色值用于解码颜色条码。

53. 发明授权

US08531743B2 System and method for detecting missing inkjets in an inkjet printer using image data of printed documents without a priori knowledge of the documents 有权
标题翻译：用于使用印刷文件的图像数据来检测喷墨打印机中缺失的喷墨喷嘴的系统和方法，而没有文件的先验知识
公开(公告)号：US08531743B2
公开(公告)日：2013-09-10
申请号：US12906694
申请日：2010-10-18
申请人： Wencheng Wu , Edul N. Dalal
发明人： Wencheng Wu , Edul N. Dalal
IPC分类号： H04N1/46 , H04N1/60 , B41J29/393 , B41J2/015
CPC分类号： B41J2/2142 , B41J2/2139 , B41J2/2146
摘要： A system and method detect missing inkjets in an inkjet image generating system. The system and method generate digital images of printed documents that do not have test pattern data within them. The digital images are processed to detect light streaks and the positions of the light streaks are correlated to inkjet positions in printheads. Identification of the ink color associated with the correlated inkjet positions are obtained with analysis of color separated images and/or color errors.
摘要翻译：一种系统和方法检测喷墨图像生成系统中的缺失喷墨。该系统和方法生成在其中没有测试图案数据的打印文档的数字图像。处理数字图像以检测光条纹，并且光条纹的位置与打印头中的喷墨位置相关。通过分析颜色分离图像和/或颜色误差来获得与相关喷墨位置相关联的墨水颜色的识别。

54. 发明授权

US08520276B2 Color management for selectable gloss applications 有权
标题翻译：颜色管理可选光泽应用
公开(公告)号：US08520276B2
公开(公告)日：2013-08-27
申请号：US13116233
申请日：2011-05-26
申请人： Edul N. Dalal , Wencheng Wu
发明人： Edul N. Dalal , Wencheng Wu
IPC分类号： H04N1/60
CPC分类号： B41J29/393 , H04N1/00015 , H04N1/00023 , H04N1/00031 , H04N1/00045 , H04N1/00063 , H04N1/00068 , H04N1/00087 , H04N1/0009 , H04N1/6033 , H04N2201/0094 , H04N2201/326
摘要： Methods and systems are disclosed which are capable of efficiently performing color management of a variable gloss color printing system. The methods and systems select at least one set of the linear color values corresponding to the color profile for the printing device (at the nominal gloss condition). The linear color values selected comprise those obtained from color values corresponding to each node of the color profile at the nominal gloss condition. In a colorimetric embodiment, the linear color values can comprise: tristimulus values XYZ; red, green, blue (RGB); or luminance component Y, and two chromatic components C1 and C2 (YCC). In a reflectance embodiment, the linear color values comprise reflectance spectra. This exemplary method adds an offset term to each of the linear color values to produce a corresponding set of modified linear color values, and generates a color profile for the printing device at the desired gloss condition based on the modified linear color values.
摘要翻译：公开了能够有效执行可变光泽彩色打印系统的颜色管理的方法和系统。方法和系统选择与印刷装置的颜色特征对应的至少一组线性颜色值（在标称光泽条件下）。所选择的线性颜色值包括从在标称光泽条件下的颜色轮廓的每个节点对应的颜色值获得的。在比色实施例中，线性颜色值可以包括：三刺激值XYZ; 红，绿，蓝（RGB）; 或亮度分量Y，以及两个彩色分量C1和C2（YCC）。在反射率实施例中，线性颜色值包括反射光谱。该示例性方法将偏移项添加到每个线性颜色值以产生相应的一组修改的线性颜色值，并且基于修改的线性颜色值在期望的光泽条件下为打印装置生成颜色特征。

55. 发明授权

US08488191B2 Color mapping determination for an N-color marking device based upon image spatial noise defects 有权
标题翻译：基于图像空间噪声缺陷的N色标记装置的颜色映射确定
公开(公告)号：US08488191B2
公开(公告)日：2013-07-16
申请号：US12727791
申请日：2010-03-19
申请人： Edul N. Dalal , Wencheng Wu , Martin S. Maltz
发明人： Edul N. Dalal , Wencheng Wu , Martin S. Maltz
IPC分类号： H04N1/60
CPC分类号： H04N1/6022 , H04N1/603
摘要： What is disclosed is a novel system and method for determining color profiles based upon optimizing output image spatial noise. For each of a number of selected output colors, spatial noise values for a set of device-dependent color specifications that produce the selected output color are iteratively determined. The set of device-dependent color specifications is generated by varying a subset of colorants in the device-dependent color specifications while changing the remaining colorants to maintain the selected output color. The iterative process improves the spatial noise value, as determined by a spatial noise model, of the device-dependent color specifications that correspond to the selected output color. When an optimum spatial noise value is found, the device-dependent color specification having that spatial noise value is selected as the mapping for the selected device-independent color specification. Various embodiments are disclosed.
摘要翻译：公开的是基于优化输出图像空间噪声来确定颜色特征的新颖系统和方法。对于多个选择的输出颜色中的每一个，迭代地确定产生所选输出颜色的一组依赖于设备的颜色规范的空间噪声值。通过在改变剩余着色剂以维持所选择的输出颜色的同时改变依赖于设备的颜色规格中的着色剂子集来生成依赖于设备的颜色规格。迭代过程根据空间噪声模型改善与所选输出颜色对应的依赖于设备的颜色规格的空间噪声值。当找到最佳空间噪声值时，选择具有该空间噪声值的依赖于设备的颜色规范作为所选设备无关颜色规范的映射。公开了各种实施例。

56. 发明授权

US08335017B1 Spot color rendering via feedback-based multi-objective optimization 有权
标题翻译：通过基于反馈的多目标优化进行现货显色
公开(公告)号：US08335017B1
公开(公告)日：2012-12-18
申请号：US13167349
申请日：2011-06-23
申请人： Alvaro Enrique Gil , Lalit Keshav Mestha , Wencheng Wu , Edul N. Dalal
发明人： Alvaro Enrique Gil , Lalit Keshav Mestha , Wencheng Wu , Edul N. Dalal
IPC分类号： H04N1/46
CPC分类号： H04N1/622
摘要： What is disclosed is a feedback control based system and method for selecting spot color recipes for improved spot color rendition while simultaneously minimizing a function of image quality attributes formed with states defined as vectors such as L*, a*, b*, mottle, graininess, etc. Color is measured with an in-line spectrophotometer or with a full/partial width array. If the sensor is not available, then a model of the print device is used to optimize the function of image quality attributes. In one example embodiment, a spot color of interest is selected along with a set of image quality attributes to be improved for the spot colors of interest. Set points for process actuators and color recipes of the color marking device are adjusted such that a function of the image quality attributes is minimized when the spot color is rendered on the device. Various workflows are disclosed.
摘要翻译：所公开的是基于反馈控制的系统和方法，用于选择改进的专色再现的专色配方，同时最小化由定义为诸如L *，a *，b *，斑点，颗粒度的矢量形成的图像质量属性的功能等等。使用直列分光光度计或全/部分宽度阵列测量颜色。如果传感器不可用，则使用打印设备的型号来优化图像质量属性的功能。在一个示例性实施例中，选择感兴趣的专色连同一组图像质量属性以便针对感兴趣的专色进行改进。调整颜色标记装置的处理执行器和颜色配置的设定点，使得当在设备上呈现专色时，图像质量属性的功能被最小化。公开了各种工作流程。

57. 发明授权

US08204303B2 Spatially based transformation of spot colors 有权
标题翻译：专色空间转换专色
公开(公告)号：US08204303B2
公开(公告)日：2012-06-19
申请号：US12437660
申请日：2009-05-08
申请人： Edul N. Dalal , Patrick R. Harrington , Wencheng Wu
发明人： Edul N. Dalal , Patrick R. Harrington , Wencheng Wu
IPC分类号： G06K9/00 , G06K1/00 , G06F15/00
CPC分类号： H04N1/54 , H04N1/4015 , H04N1/6033
摘要： Colorant recipes for spot colors, or colors associated with vector graphic objects, are transformed to compensate for spatial variation in a rendering device. Inverted Jacobians of color production performance can be used to transform color deviations into colorant recipe changes. The colorant recipe changes are applied to original colorant recipes to provide the transformed colorant recipes. Jacobians can be determined by exercising a system model according to perturbations of the colorant recipes. Alternatively, test patches or strips based on perturbed original colorant recipes can be rendered and measured and the Jacobians can be based on such measurements. Alternatively, spatially dependent tone reproduction curves can be used to transform the colorant recipes associated with the vector graphic objects. Image processing systems can include a spatial variation information determiner, a spatial compensation information determiner and a colorant recipe transformer.
摘要翻译：用于专色的颜色配方或与矢量图形对象相关联的颜色进行变换，以补偿渲染设备中的空间变化。反色Jacobians的色彩生产性能可用于将颜色偏差转化为色素配方更改。着色剂配方变化适用于原始着色剂配方以提供转化的着色剂配方。 Jacobians可以通过根据着色剂配方的扰动行使系统模型来确定。或者，可以渲染和测量基于干扰的原始着色剂配方的测试贴片或条纹，并且Jacobians可以基于这样的测量。或者，空间依赖色调再现曲线可用于变换与矢量图形对象相关联的着色剂配方。图像处理系统可以包括空间变化信息确定器，空间补偿信息确定器和着色剂配方变换器。

58. 发明申请

US20110273730A1 PROCESSING IMAGES TO BE BLENDED WITH REFLECTED IMAGES 有权
标题翻译：处理图像与反射图像混合
公开(公告)号：US20110273730A1
公开(公告)日：2011-11-10
申请号：US12775019
申请日：2010-05-06
申请人： Robert P. Loce , Edgar A. Bernal , Edul N. Dalal
发明人： Robert P. Loce , Edgar A. Bernal , Edul N. Dalal
IPC分类号： G06F15/00
CPC分类号： G06T11/60
摘要： Images are prepared for blending with a reflection. Angles of incidence and angles or reflection lead to reflections of a viewer appearing to be different than actual size. Accordingly, image preparation can include scaling images of objects to be blended with a reflection to an appropriate size. For a flat specular surface the size is one half the size the object would be if the object were sized to be associated with the feature that is reflected. A viewer will focus on the reflection of the viewer at an object plane. An image associated with the specular surface will be blurred. Accordingly, the preparation can include compensating for the blurring. Preparation can also include reducing an area coverage of the image of the object to no more than about fifty percent of the region of the refection to provide space for the reflection.
摘要翻译：图像准备与反射混合。入射角和角度或反射导致观察者的反射似乎与实际尺寸不同。因此，图像准备可以包括将要与要反射的混合的对象的图像缩放到适当的大小。对于平坦的镜面，如果对象的大小与要反映的要素相关联，则大小是对象大小的一半。观众将集中在观察者在物体平面上的反射。与镜面相关联的图像将会模糊。因此，该制剂可以包括补偿模糊。制备还可以包括将对象的图像的面积覆盖范围减小到不超过反射区域的大约百分之五十，以提供反射的空间。

59. 发明申请

US20110177442A1 TONER COMPOSITIONS 有权
标题翻译：调色剂组合物
公开(公告)号：US20110177442A1
公开(公告)日：2011-07-21
申请号：US12689522
申请日：2010-01-19
申请人： Daryl W. Vanbesien , Karen Ann Moffat , Yi Xin Gong , Edul N. Dalal , Jing Wang , Richard P.N. Veregin , Jordan H. Wosnick , Cuong Vong , Valerie M. Farrugia
发明人： Daryl W. Vanbesien , Karen Ann Moffat , Yi Xin Gong , Edul N. Dalal , Jing Wang , Richard P.N. Veregin , Jordan H. Wosnick , Cuong Vong , Valerie M. Farrugia
IPC分类号： G03G9/09 , G03G9/08
CPC分类号： G03G9/0906 , G03G9/0804 , G03G9/08755 , G03G9/08782 , G03G9/091 , G03G9/0926
摘要： The present disclosure provides processes for producing images of excellent color fidelity when incorporating a magenta toner with a lower colorant loading in addition to a first magenta toner. In embodiments, the magenta pigmented particles may be magenta emulsion aggregation toners. In accordance with the present disclosure, a pair of magenta toners are matched in color, wherein the color of a first magenta toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second magenta toner, which is lighter than the first magenta toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable. In embodiments, the light magenta toner is color matched by adding a hue-adjusting colorant or combination of colorants which absorb wavelengths of light between 400 and 500 nanometers, and optionally adding a shade-adjusting colorant or combination of colorants which absorb wavelengths of light between 600 and 700 nanometers.
摘要翻译：本公开提供除了第一品红色调色剂之外，当掺入具有较低着色剂负载的品红色调色剂时，还提供了用于产生具有优异色彩保真度的图像的方法。在实施方案中，品红色着色颗粒可以是洋红色乳液聚集调色剂。根据本公开，一对品红色调色剂的颜色相匹配，其中印刷在基板上的预定半色调区域覆盖的第一品红色调色剂的颜色基本上与固体（100％）印刷贴片的颜色匹配第二品红色调色剂比第一品红色调色剂轻，从而避免了印刷品上可见的色调偏移，否则会令人反感。在实施方案中，通过添加色调调节着色剂或吸收400至500纳米之间的光的波长的着色剂的组合，并且可选地添加调色剂或着色剂的组合，所述着色剂吸收波长的光 600和700纳米。

60. 发明申请

US20110096330A1 MINIMIZING SPECTROPHOTOMETER IMPACT ON SPOT COLOR ACCURACY 有权
标题翻译：最小化分光光度计对点颜色精度的影响
公开(公告)号：US20110096330A1
公开(公告)日：2011-04-28
申请号：US12607212
申请日：2009-10-28
申请人： Edul N. Dalal , Wencheng Wu , Alvaro E. Gil , Peter A. Crean
发明人： Edul N. Dalal , Wencheng Wu , Alvaro E. Gil , Peter A. Crean
IPC分类号： G01J3/46
CPC分类号： G01J3/46 , G01J3/462 , G01J3/463 , H04N1/6033
摘要： Differences between an offline spectrophotometer and an inline spectrophotometer can result in differences between a hardcopy target color and a printed reproduction of that color. The inline spectrophotometer is inside of a printer and configured to measure printer output. As such, the inline spectrophotometer cannot conveniently measure the hardcopy target color. A printing error or an instrument offset can be determined and passed to a color correction module that updates the device dependent color specification associated with the given spot color. This color specification may be stored, for example, in the printer controller, and used when a document subsequently calls for that spot color, thereby providing accurate color reproduction from that particular printer incorporating that particular inline spectrophotometer.
摘要翻译：离线分光光度计和在线分光光度计之间的差异可能导致硬拷贝目标颜色和该颜色的印刷再现之间的差异。在线分光光度计位于打印机内部，并配置为测量打印机输出。因此，在线分光光度计不能方便地测量硬拷贝目标颜色。可以确定打印错误或仪器偏移并将其传递给更新与给定专色相关联的依赖于设备的颜色规格的颜色校正模块。该颜色规格可以存储在例如打印机控制器中，并且当文档随后调用该专色时使用，从而从包含该特定的在线分光光度计的特定打印机提供准确的颜色再现。

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