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公开(公告)号：US08547613B2
公开(公告)日：2013-10-01
申请号：US12915217
申请日：2010-10-29
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。
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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
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。
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13.发明授权Infrared encoding of security elements using standard xerographic materials with distraction patterns 有权使用具有分心模式的标准静电复印材料对安全元件进行红外编码公开(公告)号：US08455087B2
公开(公告)日：2013-06-04
申请号：US11758359
申请日：2007-06-05
申请人： Reiner Eschbach , Raja Bala , Martin S Maltz
发明人： Reiner Eschbach , Raja Bala , Martin S Maltz
IPC分类号： G03C1/00
CPC分类号： G03G21/046 , Y10T428/24802
摘要： The teachings as provided herein relate to a watermark embedded in an image that has the property of being relatively indecipherable under normal light, and yet decipherable under infrared illumination when viewed by a suitable infrared sensitive device. This infrared mark entails in combination with at least one distraction pattern, a substrate reflective to infrared radiation, and a first colorant mixture and second colorant mixture printed as an image upon the substrate. The first colorant mixture layer in connection with the substrate has a property of strongly reflecting infrared illumination, as well as a property of low contrast under normal illumination against a second colorant mixture as printed in close spatial proximity to the first colorant mixture pattern, such that the resultant image rendered substrate suitably exposed to an infrared illumination, will yield a discernable image evident as a infrared mark to a suitable infrared sensitive device.
摘要翻译： 本文提供的教导涉及嵌入在图像中的水印，其具有在正常光线下相对不可解译的性质，并且在由合适的红外敏感装置观看时在红外照明下可解码。 该红外标记需要与至少一个分散图案，反射红外辐射的基底以及作为图像印刷在基底上的第一着色剂混合物和第二着色剂混合物组合。 与基底相关的第一着色剂混合物层具有强烈反射红外照明的性质，以及在正常照射下对第二着色剂混合物的低对比度的性质，其与第一着色剂混合物图案紧密相邻地印刷，使得 适当地暴露于红外照明的所得到的图像渲染基板将产生作为适合的红外敏感装置的红外标记显而易见的可识别图像。
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14.发明授权公开(公告)号：US08451521B2
公开(公告)日：2013-05-28
申请号：US12782362
申请日：2010-05-18
IPC分类号： G03F3/08
CPC分类号： H04N1/6019
摘要： What is disclosed is a novel system and method for converting a set of L*a*b* values to CMYK color space in which all CMYK formulations that produce each L*a*b* value are found and enumerated. The CMYK formulations are found through a search algorithm starting with the lightest L*a*b* values then visiting neighboring L*a*b* values until the entire L*a*b* color set has been processed. The CMYK space is tessellated into a set of pentahedrons, and for each L*a*b* value, an enclosing pentahedron is found and the CMYK values corresponding to where the locus of this point penetrates each surface is recorded. Adjacent pentahedrons are then visited and this process continues until the gamut boundary is reached. The result is a piecewise linear representation of the CMYK locus containing all values that will give the target L*a*b* value. The present method provides a flexible and powerful approach for solving color management problems.
摘要翻译： 所公开的是用于将一组L * a * b *值转换为CMYK颜色空间的新型系统和方法，其中发现并列举了产生每个L * a * b *值的所有CMYK公式。 通过搜索算法找到CMYK公式，从最轻的L * a * b *值开始，然后访问相邻的L * a * b *值，直到整个L * a * b *颜色集合被处理。 CMYK空间被镶嵌成一组五面体，并且对于每个L * a * b *值，找到一个包围的五面体，并且记录与该点的轨迹穿过每个表面的位置相对应的CMYK值。 然后访问相邻的五面体，并且该过程继续，直到达到色域边界。 结果是包含将给出目标L * a * b *值的所有值的CMYK轨迹的分段线性表示。 本方法为解决颜色管理问题提供了灵活而强大的方法。
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15.发明申请UPDATING A FLEET CMYK TO ENGINE cmyk LUT IN A COLOR MANAGEMENT STRATEGY 有权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
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。
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公开(公告)号：US07965421B2
公开(公告)日：2011-06-21
申请号：US12103978
申请日：2008-04-16
IPC分类号： H04N1/40
CPC分类号： H04N1/4095
摘要： A show-through reduction method is disclosed. The method is designed to deal with both light and severe show-through. The method focuses mostly on text documents, with characters possibly appearing in multiple gray levels, although the method can also be extended to color documents. As in the prior art, the front and back pages are processed in pairs. However, no perfect page alignment is assumed here, since we are dealing with real images. Instead, a front and back registration is performed as the first step before the pages are further analyzed. In this method, we are aligning the front page content with its show-through appearing in the back side, and the back page content with its show-through appearing in the front side. Once the two sides are aligned, masks are generated for both sides to differentiate severe show-through and light color content regions. Finally, different TRCs are applied to different regions. The show-through is reduced and the page contents are retained.
摘要翻译： 公开了一种透视简化方法。 该方法旨在处理轻型和重型展示。 该方法主要集中在文本文档上，字符可能出现在多个灰度级，尽管该方法也可以扩展到彩色文档。 如现有技术那样，前页和后页成对处理。 然而，在这里假设没有完美的页面对齐，因为我们正在处理真实的图像。 相反，在进一步分析页面之前，执行正面和背面注册作为第一步。 在这种方法中，我们正在将首页内容与其后面的显示对齐，后端页面的内容与其显示出现在前面。 一旦双方对齐，双方将产生掩模，以区分严重的透明和浅色内容区域。 最后，不同的TRC应用于不同的地区。 展示次数减少，页面内容保留。
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公开(公告)号：US20090296153A1
公开(公告)日：2009-12-03
申请号：US12127473
申请日：2008-05-27
CPC分类号： H04N1/6022 , H04N1/603
摘要： This disclosure provides methods, apparatus and systems for generating a multidimensional printer profile for a color printer. Specifically, the disclosure provides a method to blend multiple GCR functions or strategies to produce a final GCR blended printer profile, for example a printer profile LUT.
摘要翻译： 本公开提供了用于生成彩色打印机的多维打印机配置文件的方法，装置和系统。 具体地，本公开提供了一种混合多个GCR功能或策略以产生最终的GCR混合打印机配置文件的方法，例如打印机配置文件LUT。
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公开(公告)号：US20090080041A1
公开(公告)日：2009-03-26
申请号：US11860631
申请日：2007-09-25
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。
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19.发明申请INFRARED ENCODING OF SECURITY ELEMENTS USING STANDARD XEROGRAPHIC MATERIALS 有权使用标准XEROGRAPHIC材料的安全元素的红外编码公开(公告)号：US20080302263A1
公开(公告)日：2008-12-11
申请号：US11758344
申请日：2007-06-05
申请人： Reiner Eschbach , Raja Bala , Martin S. Maltz
发明人： Reiner Eschbach , Raja Bala , Martin S. Maltz
CPC分类号： B41M3/144 , B42D25/382 , C09D11/037 , H04N1/32149 , H04N2201/327 , H04N2201/3271 , Y10T428/24802
摘要： The teachings as provided herein relate to a watermark embedded in an image that has the property of being relatively indecipherable under normal light, and yet decipherable under infrared illumination when viewed by a suitable infrared sensitive device. This infrared mark entails, a substrate reflective to infrared radiation, and a first colorant mixture and second colorant mixture printed as an image upon the substrate. The first colorant mixture layer in connection with the substrate has a property of strongly reflecting infrared illumination, as well as a property of low contrast under normal illumination against a second colorant mixture as printed in close spatial proximity to the first colorant mixture pattern, such that the resultant image rendered substrate suitably exposed to an infrared illumination, will yield a discernable image evident as a infrared mark to a suitable infrared sensitive device.
摘要翻译： 本文提供的教导涉及嵌入在图像中的水印，其具有在正常光线下相对不可解译的性质，并且在由合适的红外敏感装置观看时在红外照明下可解码。 该红外线标记需要反射红外辐射的基板，以及作为图像印刷在基板上的第一着色剂混合物和第二着色剂混合物。 与基底相关的第一着色剂混合物层具有强烈反射红外照明的性质，以及在正常照射下对第二着色剂混合物的低对比度的性质，其与第一着色剂混合物图案紧密相邻地印刷，使得 适当地暴露于红外照明的所得到的图像渲染基板将产生作为适合的红外敏感装置的红外标记显而易见的可识别图像。
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公开(公告)号：US20080144114A1
公开(公告)日：2008-06-19
申请号：US11640561
申请日：2006-12-18
IPC分类号： G06K15/00
CPC分类号： H04N1/603
摘要： This presently described embodiment deals with this problem by dynamically constructing color management device profiles that are optimized for accurate reproduction of a particular document. This apparatus utilizes three components. Device characterization data describes the relationship between device drive values (e.g., CMYK in the case of a 4 color printer) and the resulting color (spectral, CIELab, CIEXYZ or similar). Critical document colors are the critical colors in a document that is to be output on the device. The colors will generally be described by their CIELab, CIEXYZ or similar coordinates, but may also include color tolerances and frequency of occurrence values. Device modeling algorithms are mathematical procedures that allow the construction of device-to-color and color-to-device models in a way that different accuracy weightings can be applied in different regions of color space. These components function together to build a device profile in which the errors in the critical document colors are minimized.
摘要翻译： 该目前描述的实施例通过动态地构建针对特定文档的精确再现优化的颜色管理设备简档来处理该问题。 该装置使用三个部件。 器件特性数据描述了器件驱动值之间的关系（例如，在4色打印机的情况下为CMYK）和所得到的颜色（光谱，CIELab，CIEXYZ或类似的）之间的关系。 关键文档颜色是要在设备上输出的文档中的关键颜色。 颜色一般由CIELab，CIEXYZ或类似的坐标来描述，但也可以包括颜色容限和出现频率。 设备建模算法是允许以不同精度权重应用于颜色空间的不同区域的方式构建设备到颜色和颜色到设备模型的数学过程。 这些组件一起工作以构建设备配置文件，其中关键文档颜色中的错误最小化。
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