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公开(公告)号：US08164790B2
公开(公告)日：2012-04-24
申请号：US12398250
申请日：2009-03-05
申请人： Yee S. Ng , Mamie Kam Ng, legal representative , Hwai-Tzuu Tai , Peter S. Alexandrovich , Chung-Hui Kuo
IPC分类号： H04N1/60
CPC分类号： G03G15/5025 , G03G2215/0141 , G03G2215/0429 , G03G2215/0468 , G03G2215/047
摘要： Methods of improving image quality by reducing grain and texture in a printed image are provided. According to one embodiment, a method of reducing grain and texture in an image includes the steps of providing a light color toner and a dark color toner, providing an aperiodic micrononuniformity map, using the aperiodic micrononuniformity map to determine an acceptable domain that includes a plurality of combinations of the light color toner and the dark color toner, and forming an image by selecting one combination of the light color toner and the dark color toner from the plurality of combinations of the light color toner and the dark color toner.
摘要翻译： 提供了通过减少打印图像中的纹理和纹理来提高图像质量的方法。 根据一个实施例，一种减少图像中的纹理和纹理的方法包括以下步骤：提供浅色调色剂和深色调色剂，提供非周期性微米均匀性图，使用非周期性微米均匀性图来确定包含多个 通过从浅色调色剂和深色调色剂的多种组合中选择浅色调色剂和深色调色剂的一种组合来形成图像。
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公开(公告)号：US20100224090A1
公开(公告)日：2010-09-09
申请号：US12398250
申请日：2009-03-05
IPC分类号： B41F31/02
CPC分类号： G03G15/5025 , G03G2215/0141 , G03G2215/0429 , G03G2215/0468 , G03G2215/047
摘要： Methods of improving image quality by reducing grain and texture in a printed image are provided. According to one embodiment, a method of reducing grain and texture in an image includes the steps of providing a light color toner and a dark color toner, providing an aperiodic micrononuniformity map, using the aperiodic micrononuniformity map to determine an acceptable domain that includes a plurality of combinations of the light color toner and the dark color toner, and forming an image by selecting one combination of the light color toner and the dark color toner from the plurality of combinations of the light color toner and the dark color toner.
摘要翻译： 提供了通过减少打印图像中的纹理和纹理来提高图像质量的方法。 根据一个实施例，一种减少图像中的纹理和纹理的方法包括以下步骤：提供浅色调色剂和深色调色剂，提供非周期性微米均匀性图，使用非周期性微米均匀性图来确定包含多个 通过从浅色调色剂和深色调色剂的多种组合中选择浅色调色剂和深色调色剂的一种组合来形成图像。
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3.发明授权公开(公告)号：US07599634B2
公开(公告)日：2009-10-06
申请号：US11734821
申请日：2007-04-13
申请人： Chung-Hui Kuo , Yee S. Ng , Hwai-Tzuu Tai , Dmitri A. Gusev
发明人： Chung-Hui Kuo , Yee S. Ng , Hwai-Tzuu Tai , Dmitri A. Gusev
IPC分类号： G03G15/00
CPC分类号： H04N1/603 , H04N1/6097
摘要： Forming a multicolor image on a receiver member wherein a database of custom color profiles based on substrate physical properties and printing process characteristics is established. A set of universal color profiles is determined based on physical properties of substrates from clustered custom profiles. One universal color profile is assigned to a target substrate from the set of universal color profiles based on objective or subjective feedback. Thereafter, a multicolor toner image is formed on the receiver member with toners of at least three different colors of toner pigments which form various combinations of colors at different pixel locations on the receiver member to form the multicolor toner image thereon using the assigned one color profile. Based on objective or subjective feedback, the selected one universal color profile is modified, or a different universal color profile is selected.
摘要翻译： 在接收器构件上形成多色图像，其中建立了基于衬底物理特性和印刷工艺特性的定制颜色分布数据库。 基于来自聚类定制轮廓的基底的物理性质确定一组通用颜色轮廓。 基于客观或主观的反馈，通用色彩配置文件将一个通用色彩配置文件分配给目标基板。 此后，在接收器构件上形成具有至少三种不同颜色的调色剂颜料的调色剂的多色调色剂图像，其在接收器构件上的不同像素位置处形成各种颜色的组合，以使用所分配的一个颜色轮廓来形成其上的多色调色剂图像 。 基于客观或主观反馈，修改所选择的一个通用颜色配置文件，或选择不同的通用颜色配置文件。
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公开(公告)号：US20110141525A1
公开(公告)日：2011-06-16
申请号：US12638088
申请日：2009-12-15
申请人： Yee S. Ng , Hwai-Tzuu Tai , Chung-Hui Kuo , Marnie Kan-Ng
发明人： Yee S. Ng , Hwai-Tzuu Tai , Chung-Hui Kuo , Marnie Kan-Ng
IPC分类号： H04N1/405
CPC分类号： H04N1/40087 , H04N1/405
摘要： The present invention relates to methods of improving color image quality by optimization of the gray level screens including blending a plurality of gray level screens to reducing the color grain noise and maintaining larger color gamut for the pictorial color imagery in the color printing systems that utilize gray level (multi-level) printing.
摘要翻译： 本发明涉及通过优化灰度级屏幕来改善彩色图像质量的方法，包括混合多个灰度级屏幕以减少彩色纹理噪声，并且在利用灰色的彩色打印系统中维持图像彩色图像的较大色域 级（多级）打印。
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5.发明申请公开(公告)号：US20080253783A1
公开(公告)日：2008-10-16
申请号：US11734821
申请日：2007-04-13
申请人： Chung-Hui Kuo , Yee S. Ng , Hwai-Tzuu Tai , Dmitri A. Gusev
发明人： Chung-Hui Kuo , Yee S. Ng , Hwai-Tzuu Tai , Dmitri A. Gusev
CPC分类号： H04N1/603 , H04N1/6097
摘要： Forming a multicolor image on a receiver member wherein a database of custom color profiles based on substrate physical properties and printing process characteristics is established. A set of universal color profiles is determined based on physical properties of substrates from clustered custom profiles. One universal color profile is assigned to a target substrate from the set of universal color profiles based on objective or subjective feedback. Thereafter, a multicolor toner image is formed on the receiver member with toners of at least three different colors of toner pigments which form various combinations of colors at different pixel locations on the receiver member to form the multicolor toner image thereon using the assigned one color profile. Based on objective or subjective feedback, the selected one universal color profile is modified, or a different universal color profile is selected.
摘要翻译： 在接收器构件上形成多色图像，其中建立了基于衬底物理特性和印刷工艺特性的定制颜色分布数据库。 基于来自聚类定制轮廓的基底的物理性质确定一组通用颜色轮廓。 基于客观或主观的反馈，通用色彩配置文件将一个通用色彩配置文件分配给目标基板。 此后，在接收器构件上形成具有至少三种不同颜色的调色剂颜料的调色剂的多色调色剂图像，其在接收器构件上的不同像素位置处形成各种颜色的组合，以使用所分配的一个颜色轮廓来形成其上的多色调色剂图像 。 基于客观或主观反馈，修改所选择的一个通用颜色配置文件，或选择不同的通用颜色配置文件。
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公开(公告)号：US09030516B2
公开(公告)日：2015-05-12
申请号：US13166033
申请日：2011-06-22
IPC分类号： B41J2/385 , G03G13/04 , G03G15/043 , H04N1/401 , H04N1/405 , H04N1/407 , G06K15/02 , G06K15/12
CPC分类号： G03G15/043 , G06K15/1209 , G06K15/1247 , G06K15/1868 , G06K15/1881 , H04N1/4015 , H04N1/405 , H04N1/407
摘要： Compensation is performed for nonuniformity in a printer. The printer has a photoreceptor and a print head with a plurality of different light sources, each light source capable of producing a plurality of different levels of light. A plurality of stored gain control signals for each light source are related to the light output of that light source. Print job data includes screened pixel levels and a halftone screen specification. The stored gain control signals are adjusted based on the halftone screen specification. The screened pixel levels are modified using the adjusted gain control signals to provide engine pixel levels. Those levels are provided to corresponding light sources to expose the photoreceptor in respective pixel areas with light corresponding to the compensated pixel levels.
摘要翻译： 对打印机的不均匀性进行补偿。 打印机具有感光体和具有多个不同光源的打印头，每个光源能够产生多个不同级别的光。 用于每个光源的多个存储的增益控制信号与该光源的光输出有关。 打印作业数据包括屏蔽像素级别和半色调屏幕规格。 存储的增益控制信号根据半色调屏幕规格进行调整。 使用调整后的增益控制信号修改屏蔽像素级，以提供引擎像素级。 这些电平被提供给相应的光源，以使与相应于补偿的像素电平相对应的光曝光在各个像素区域中的感光体。
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公开(公告)号：US08605333B2
公开(公告)日：2013-12-10
申请号：US13114097
申请日：2011-05-24
申请人： Chung-Hui Kuo , Hwai-Tzuu Tai , John T Hartman
发明人： Chung-Hui Kuo , Hwai-Tzuu Tai , John T Hartman
IPC分类号： H04N1/40
CPC分类号： G03G15/6591 , G03G15/224 , G03G15/5025 , G06K1/121
摘要： Apparatus for depositing a texture on a receiver includes a data source that provides multilevel input tint data values. A lossy compressor produces compressed multilevel tint data values from the multilevel input tint data values. A decompressor produces multilevel decompressed tint data values from the compressed multilevel tint data values. A texture memory receives those values from the decompressor and provides corresponding multilevel texture pixel data values. A print engine deposits at each of a plurality of pixel sites on the receiver an amount of texture-forming material corresponding to the respective multilevel texture pixel data value. A loader loads into the texture memory a texture set including multilevel texture pixel data values for each of a plurality of textures, and each texture in the texture set corresponds to a respective selected range of multilevel decompressed tint data value.
摘要翻译： 用于在接收器上存储纹理的装置包括提供多级输入色调数据值的数据源。 有损压缩器从多级输入色调数据值产生压缩多级色调数据值。 解压缩器从压缩的多级色调数据值产生多级解压缩色调数据值。 纹理存储器从解压缩器接收这些值，并提供相应的多级纹理像素数据值。 印刷引擎在接收器上的多个像素位置的每一个处沉积与多个多层结构像素数据值对应的纹理形成材料的量。 加载器将多个纹理中的每一个纹理集合包含多层纹理像素数据值，纹理集合中的每个纹理对应于多级解压缩色调数据值的相应选定范围。
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公开(公告)号：US07830569B2
公开(公告)日：2010-11-09
申请号：US11394770
申请日：2006-03-31
申请人： Hwai-Tzuu Tai , Chung-Hui Kuo , Dmitri A. Gusev
发明人： Hwai-Tzuu Tai , Chung-Hui Kuo , Dmitri A. Gusev
CPC分类号： G09G5/02 , H04N1/40087 , H04N1/405 , H04N1/4055 , H04N1/46
摘要： A three-dimensional halftone screen is provided that is suited for multilevel printing. The three-dimensional halftone screen includes a plurality of planes each corresponding to one or more input intensity levels of an input RIPped pixel. Within the planes are screen dots, each associated with one or more output exposure intensity values representing an intensity of an exposure dot corresponding to the input RIPped pixel.
摘要翻译： 提供了适用于多层印刷的三维半色调网。 三维半色调屏幕包括多个平面，每个平面对应于输入RIPped像素的一个或多个输入强度级别。 在平面内是屏幕点，每个都与一个或多个输出曝光强度值相关联，表示与输入的RIPped像素对应的曝光点的强度。
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公开(公告)号：US20130003087A1
公开(公告)日：2013-01-03
申请号：US13171769
申请日：2011-06-29
申请人： Chung-Hui Kuo , Hwai-Tzuu Tai , John T. Hartman
发明人： Chung-Hui Kuo , Hwai-Tzuu Tai , John T. Hartman
IPC分类号： G06K1/00
CPC分类号： G06K15/1802 , G06K15/1827 , G06K2215/0082
摘要： Apparatus for depositing a texture on a receiver includes a data source adapted to receive a job specification and provide corresponding texture identification data values. A texture memory receives the texture identification data values from the data source and provides corresponding multilevel texture pixel data values. A loader loads into the texture memory a texture set including multilevel texture pixel data values for each of a plurality of textures, each texture in the texture set corresponding to one or more of the texture identification data values. A print engine deposits at each of a plurality of pixel sites on the receiver an amount of texture-forming material corresponding to the respective multilevel texture pixel data value.
摘要翻译： 用于在接收器上存储纹理的装置包括适于接收作业规范并提供对应的纹理识别数据值的数据源。 纹理存储器从数据源接收纹理识别数据值，并提供相应的多层纹理像素数据值。 一种加载器向纹理存储器加载纹理集合，该纹理集合包括多个纹理中的每一个的多层纹理像素数据值，纹理集合中的每个纹理对应于纹理识别数据值中的一个或多个。 印刷引擎在接收器上的多个像素位置的每一个处沉积与多个多层结构像素数据值对应的纹理形成材料的量。
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公开(公告)号：US07548343B2
公开(公告)日：2009-06-16
申请号：US11262142
申请日：2005-10-28
CPC分类号： H04N1/6033 , G03G15/0194 , G03G15/5062 , G03G2215/00063 , G03G2215/00067
摘要： An apparatus and method for calibrating a multi-color imaging system are provided. Color values are measured for each of the different color patches, and compared to target process-sensitive colors color values, representing a weight-adjusted memory color. An error value is calculated. The error value represents a deviation of the measured color values from the target color values. The input values for each colorant then are independently adjusted to reduce the error value to a predetermined degree.
摘要翻译： 提供了一种用于校准多色成像系统的装置和方法。 对于每个不同的色块测量颜色值，并与目标过程敏感颜色颜色值进行比较，表示重量调整的记忆颜色。 计算出错误值。 误差值表示测量的颜色值与目标颜色值的偏差。 然后，各个着色剂的输入值被独立地调整以将误差值减小到预定的程度。
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