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。

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

IPC分类号： G03G15/00 ,  G03G15/01

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。

公开(公告)号：US20100224090A1

公开(公告)日：2010-09-09

申请号：US12398250

申请日：2009-03-05

申请人： Yee S. Ng ,  Hwai-Tzuu Tai ,  Peter S. Alexandrovich ,  Chung-Hui Kuo

发明人： Yee S. Ng ,  Hwai-Tzuu Tai ,  Peter S. Alexandrovich ,  Chung-Hui Kuo

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。

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。

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

发明人： Yee S. Ng ,  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。

公开(公告)号：US07877053B2

公开(公告)日：2011-01-25

申请号：US11017488

申请日：2004-12-20

申请人： Yee S. Ng ,  Hwai-Tzuu Tai

发明人： Yee S. Ng ,  Hwai-Tzuu Tai

IPC分类号： G03G15/20

CPC分类号： G03G15/2003 ,  G03G15/6585 ,  G03G2215/0081

摘要： By using a high or low viscosity transparent toner, with respect to the other color toners, and different amounts of transparent toner lay-down, the gloss of an image printed by an electrophotographic device may be adjusted. By also applying the transparent toner as a negative mask, the differential gloss of the image may be reduced while still adjusting the gloss of certain portions of the image. Further, because different gloss levels may appear different at different viewing angles, transparent toner may be laid down to encode a transparent image within the image being printed. Such a transparent image may be useful as, for example, an authentication means for a document. Additionally, by varying the gloss levels on particular aspects of a printed image, multiple images of different gloss levels, which are prominent at different viewing angles can be made, thereby, a three-dimensional image effect can be achieved on the printed page.

摘要翻译： 通过使用高粘度或低粘度的透明调色剂，相对于其它颜色调色剂和不同量的透明调色剂沉积，可以调节由电子照相设备印刷的图像的光泽度。 通过将透明调色剂作为负面掩模，可以减小图像的差异光泽，同时仍然调节图像的某些部分的光泽度。 此外，由于在不同的视角下不同的光泽度可能会出现不同，所以可以放置透明调色剂以对正在打印的图像内的透明图像进行编码。 这样的透明图像可以用作例如文档的认证装置。 另外，通过在打印图像的特定方面改变光泽度，可以制造出在不同视角下突出的不同光泽度的多个图像，从而可以在打印页面上实现三维图像效果。

公开(公告)号：US07468820B2

公开(公告)日：2008-12-23

申请号：US11062417

申请日：2005-02-22

申请人： Yee S. Ng ,  Hwai-Tzuu Tai

发明人： Yee S. Ng ,  Hwai-Tzuu Tai

IPC分类号： G03F3/08 ,  H04N1/46 ,  H04N1/60 ,  G06F15/00 ,  G06K1/00 ,  G06K9/00

CPC分类号： H04N1/603 ,  G03G15/01

摘要： A system and method for selective color-correction when applying three-dimensional texture to a printed substrate hinges either on a metric that is elicited from the image, or as determined by an operator. The metric may be associated with the human visual acuity curve for textural information. Other textural metrics may also be used.

摘要翻译： 当将三维纹理应用到印刷基板上时，用于选择性色彩校正的系统和方法可以在从图像引出的度量上或由操作者确定的方面铰接。 该度量可以与用于纹理信息的人视力曲线相关联。 也可以使用其他纹理度量。

公开(公告)号：US20110038655A1

公开(公告)日：2011-02-17

申请号：US12909927

申请日：2010-10-22

申请人： Yee S. Ng ,  Hwai-Tzuu Tai

发明人： Yee S. Ng ,  Hwai-Tzuu Tai

IPC分类号： G03G15/20

CPC分类号： G03G15/2003 ,  G03G15/6585 ,  G03G2215/0081

摘要： By using a high or low viscosity transparent toner, with respect to the other color toners, and different amounts of transparent toner lay-down, the gloss of an image printed by an electrophotographic device may be adjusted. By also applying the transparent toner as a negative mask, the differential gloss of the image may be reduced while still adjusting the gloss of certain portions of the image. Further, because different gloss levels may appear different at different viewing angles, transparent toner may be laid down to encode a transparent image within the image being printed. Such a transparent image may be useful as, for example, an authentication means for a document. Additionally, by varying the gloss levels on particular aspects of a printed image, multiple images of different gloss levels, which are prominent at different viewing angles can be made, thereby, a three-dimensional image effect can be achieved on the printed page.

公开(公告)号：US07079281B1

公开(公告)日：2006-07-18

申请号：US09628397

申请日：2000-08-01

申请人： Yee S. Ng ,  Hwai-Tzuu Tai

发明人： Yee S. Ng ,  Hwai-Tzuu Tai

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  H04N1/4092

摘要： An edge enhancement processing system and method for modifying image data at certain pixel locations to include gray scale image data so as to reduce jaggedness in the image. An adjustable threshold device establishes a binary pixel value for an incoming current gray level pixel in accordance with a thresholding criterion. An operator accessible input to the thresholding device is used by the operator to adjust the threshold value in the thresholding criterion. A current binary pixel formed in accordance with the thresholding criterion and neighboring pixels also so formed in accordance with the thresholding criterion are examined in accordance with predetermined criteria for determining adjustment of the current pixel to a gray scale value to reduce edge jaggedness of the image. Generally, adjustment of the thresholding value is made in instances where under color removal and/or gray component replacement is employed.

摘要翻译： 一种边缘增强处理系统和方法，用于在某些像素位置处修改图像数据以包括灰度图像数据，以便减少图像中的锯齿状。 可调阈值装置根据阈值准则为进入的当前灰度像素建立二进制像素值。 操作者使用阈值设备的操作员可访问输入来调整阈值准则中的阈值。 根据阈值准则形成的当前二进制像素和根据阈值准则形成的相邻像素根据用于确定将当前像素调整为灰度值的预定准则被检查，以减少图像的边缘锯齿状。 通常，在使用颜色去除和/或灰色部件替换的情况下，进行阈值的调整。

公开(公告)号：US06538677B1

公开(公告)日：2003-03-25

申请号：US09854636

申请日：2001-05-14

申请人： John R. Thompson ,  Yee S. Ng ,  Eric Zeise ,  Hwai-Tzuu Tai ,  Eric C. Stelter

发明人： John R. Thompson ,  Yee S. Ng ,  Eric Zeise ,  Hwai-Tzuu Tai ,  Eric C. Stelter

IPC分类号： B41J245

CPC分类号： H04N1/40031 ,  H04N1/29 ,  H04N1/40087

摘要： A copier or a printer 10 includes a controller 16/30 with a rendering algorithm that groups sets of adjacent pixels into sets of adjacent cells where each cell corresponds to a halftone dot of an image. The algorithm operates in conjunction with a gray scale printhead 22. In sending data to the printhead, the controller 16 parses a scanned image and set the exposure for each pixel in accordance with a growth and density program. The algorithm selectively grows halftone dots from zero size to a desired size equal to or less than a maximum size. It repeats this step for the rest of the pixels until the cell is at its desired size and at an initial density. If a higher density is desired, the algorithm selectively adjusts the fully grown cells by sequentially increasing the level of exposure of each pixel in the cell. The image is developed with developer including a hard magnetic carrier and toner.

摘要翻译： 复印机或打印机10包括具有渲染算法的控制器16/30，其将相邻像素的集合分组成相邻单元的集合，其中每个单元对应于图像的半色调点。 该算法与灰度级打印头22结合操作。在向打印头发送数据时，控制器16根据增长和密度程序解析扫描图像并设置每个像素的曝光。 该算法将半色调点从零大小选择性地增长到等于或小于最大尺寸的期望大小。 对于剩余的像素重复此步骤，直到单元格处于其所需的大小和初始密度。 如果需要更高的密度，则算法通过依次增加单元中每个像素的曝光程度来选择性地调整完全生长的单元。 图像用显影剂显影，包括硬磁性载体和调色剂。