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。

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。

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。

公开(公告)号：US08767254B2

公开(公告)日：2014-07-01

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。

公开(公告)号：US08068256B2

公开(公告)日：2011-11-29

申请号：US12111267

申请日：2008-04-29

申请人： Edul N. Dalal ,  Robert P. Loce

发明人： Edul N. Dalal ,  Robert P. Loce

IPC分类号： G06F15/00 ,  G06K1/00 ,  H04N1/60

CPC分类号： H04N1/52 ,  H04N1/4055

摘要： Color management constraints on the use of selected hypocolorant(s) and a black colorant in the rendering of a given pixel reduce ink or toner usage and/or reduce pressure on an ink limit. Additionally, the enforcement of this mutual exclusivity between the black and the selected hypocolorant(s) allows screen frequencies and angles to be shared between halftone screens used for the black colorant and a selected hypocolorant. This reduces the likelihood of objectionable moiré associated with the use of hypocolorant colorants in addition to the conventional CMY(K) colorants. In some embodiments, color management constraints prevent the use of black colorant for pixels beyond a threshold lightness or luminance. This constraint allows the use of the selected hypocolorants in the region of color space beyond the threshold. The threshold can be a function of hue and/or chroma. In some embodiments the threshold is a constant.

摘要翻译： 在给定像素的渲染中使用选择的低色素和黑色着色剂的色彩管理约束减少墨水或墨粉的使用和/或降低墨水极限上的压力。 另外，黑色和所选择的低颜料之间的相互独占性的实施允许屏幕频率和角度在用于黑色着色剂的半色调屏幕和选定的低色料之间共享。 这减少了除了常规CMY（K）着色剂之外与使用低色素着色剂相关的令人反感的莫尔的可能性。 在一些实施例中，颜色管理约束阻止使用黑色着色剂超过阈值亮度或亮度的像素。 该约束允许在超出阈值的颜色空间区域中使用选定的低色素。 阈值可以是色调和/或色度的函数。 在一些实施例中，阈值是常数。

公开(公告)号：US20090268218A1

公开(公告)日：2009-10-29

申请号：US12111267

申请日：2008-04-29

申请人： Edul N. Dalal ,  Robert P. Loce

发明人： Edul N. Dalal ,  Robert P. Loce

IPC分类号： H04N1/60

CPC分类号： H04N1/52 ,  H04N1/4055

摘要： Color management constraints on the use of selected hypocolorant(s) and a black colorant in the rendering of a given pixel reduce ink or toner usage and/or reduce pressure on an ink limit. Additionally, the enforcement of this mutual exclusivity between the black and the selected hypocolorant(s) allows screen frequencies and angles to be shared between halftone screens used for the black colorant and a selected hypocolorant. This reduces the likelihood of objectionable moiré associated with the use of hypocolorant colorants in addition to the conventional CMY(K) colorants. In some embodiments, color management constraints prevent the use of black colorant for pixels beyond a threshold lightness or luminance. This constraint allows the use of the selected hypocolorants in the region of color space beyond the threshold. The threshold can be a function of hue and/or chroma. In some embodiments the threshold is a constant.

摘要翻译： 在给定像素的渲染中使用选择的低色素和黑色着色剂的色彩管理约束减少墨水或墨粉的使用和/或降低墨水极限上的压力。 另外，黑色和所选择的低颜料之间的相互独占性的实施允许屏幕频率和角度在用于黑色着色剂的半色调屏幕和选定的低色料之间共享。 这减少了除了常规CMY（K）着色剂之外与使用低色素着色剂相关的令人反感的莫尔的可能性。 在一些实施例中，颜色管理约束阻止使用黑色着色剂超过阈值亮度或亮度的像素。 该约束允许在超出阈值的颜色空间区域中使用选定的低色素。 阈值可以是色调和/或色度的函数。 在一些实施例中，阈值是常数。

公开(公告)号：US08363280B2

公开(公告)日：2013-01-29

申请号：US12536046

申请日：2009-08-05

申请人： Edul N. Dalal ,  Robert P. Loce

发明人： Edul N. Dalal ,  Robert P. Loce

IPC分类号： H04N1/405

CPC分类号： H04N1/54 ,  H04N1/4051

摘要： Systems and methods of halftoning an image for extended-colorant printing image spot colors are provided which perform a quality ranking of a plurality of periodic halftone screens to be used in halftoning the image and an objectionability ranking of the colorants used to produce the one or more image spot colors. Halftone screen-to-colorant assignments are then made using a ranked ordered pairing of the ranked screens and ranked colorants. The image is halftoned using these assignments and the results can be printed or saved for future printing. Pixel tags can be used to identify the ranked ordered halftone screen-to-colorant assignments.

摘要翻译： 提供了用于扩展着色剂打印图像专色的图像半色调的系统和方法，其执行要在半色调图像中使用的多个周期性半色调画面的质量等级，以及用于产生一个或多个 图像专色。 然后使用排序屏幕和排名着色剂的排序顺序配对进行半色调屏幕到着色剂分配。 使用这些作业对图像进行半色调处理，结果可打印或保存以备将来打印。 像素标签可用于识别排序的排序半色调屏幕到着色剂分配。

公开(公告)号：US20110032573A1

公开(公告)日：2011-02-10

申请号：US12536046

申请日：2009-08-05

申请人： Edul N. Dalal ,  Robert P. Loce

发明人： Edul N. Dalal ,  Robert P. Loce

IPC分类号： H04N1/405

CPC分类号： H04N1/54 ,  H04N1/4051

摘要： Systems and methods of halftoning an image for extended-colorant printing image spot colors are provided which perform a quality ranking of a plurality of periodic halftone screens to be used in halftoning the image and an objectionability ranking of the colorants used to produce the one or more image spot colors. Halftone screen-to-colorant assignments are then made using a ranked ordered pairing of the ranked screens and ranked colorants. The image is halftoned using these assignments and the results can be printed or saved for future printing. Pixel tags can be used to identify the ranked ordered halftone screen-to-colorant assignments.

摘要翻译： 提供了用于扩展着色剂打印图像专色的图像半色调的系统和方法，其执行要在半色调图像中使用的多个周期性半色调画面的质量等级，以及用于产生一个或多个 图像专色。 然后使用排序屏幕和排名着色剂的排序顺序配对进行半色调屏幕到着色剂分配。 使用这些作业对图像进行半色调处理，结果可打印或保存以备将来打印。 像素标签可用于识别排序的排序半色调屏幕到着色剂分配。

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。

公开(公告)号：US07869739B2

公开(公告)日：2011-01-11

申请号：US12478445

申请日：2009-06-04

申请人： Dale R. Mashtare ,  Martin E. Banton ,  Edul N. Dalal ,  John S. Facci ,  Steve P. Hoover ,  John F. Knapp ,  Robert P. Loce ,  Michael J. Martin ,  Karen Ann Moffat ,  Paul W. Morehouse ,  William J. Nowak ,  Richard Philip Nelson Veregin ,  Thomas C. Hollar

发明人： Dale R. Mashtare ,  Martin E. Banton ,  Edul N. Dalal ,  John S. Facci ,  Steve P. Hoover ,  John F. Knapp ,  Robert P. Loce ,  Michael J. Martin ,  Karen Ann Moffat ,  Paul W. Morehouse ,  William J. Nowak ,  Richard Philip Nelson Veregin ,  Thomas C. Hollar

IPC分类号： G03G15/00

CPC分类号： G03G21/1604 ,  G03G2221/1603 ,  G03G2221/1651

摘要： A xerographic marking device includes an intermediate transfer unit, a media transport path and at least one two-color image-on-image (IOI) drum module. Each two-color IOI drum module includes in a process order around a photoreceptor: a) a first charging unit; b) a first exposure unit; c) a first development unit; d) a second charging unit; e) a second exposure unit; and f) a second development unit, wherein the intermediate transfer unit receives a first toned image and a second toned image from the photoreceptor in a single transfer and transfers those toner images to print media to produce a toned image on print media. In various embodiments, specific color pairings are provided.

摘要翻译： 静电印刷标记装置包括中间转印单元，介质传送路径和至少一个双色图像图像（IOI）鼓模块。 每个双色IOI鼓模块包括围绕感光体的处理顺序：a）第一充电单元; b）第一曝光单元; c）第一发展单位; d）第二充电单元; e）第二曝光单元; 以及f）第二显影单元，其中中间转印单元以单次转印从感光体接收第一调色图像和第二调色图像，并将这些调色剂图像转印到打印介质上，以在打印介质上产生调色图像。 在各种实施例中，提供了特定的颜色配对。