公开(公告)号：US20100225972A1

公开(公告)日：2010-09-09

申请号：US12396668

申请日：2009-03-03

申请人： Peter A. Crean ,  Robert P. Loce ,  Edgar Bernal

发明人： Peter A. Crean ,  Robert P. Loce ,  Edgar Bernal

IPC分类号： H04N1/405

CPC分类号： H04N1/52

摘要： This disclosure provides methods, apparatus and systems to generate vector halftone data for rendering an image on an image output device. According to one aspect, a method generates vector halftone data as a function of contone pixel data for a given colorant at its nominal resolution and contone pixel data for the other colorants at a relatively lower resolution.

摘要翻译： 本公开提供了生成用于在图像输出设备上呈现图像的矢量半色调数据的方法，装置和系统。 根据一个方面，一种方法根据其标称分辨率产生作为给定着色剂的连续色像素数据的函数的矢量半色调数据，并以相对较低的分辨率对其它着色剂进行连续色调像素数据。

公开(公告)号：US20100103440A1

公开(公告)日：2010-04-29

申请号：US12258871

申请日：2008-10-27

申请人： Peter A. Crean ,  Robert P. Loce ,  Edgar Bernal

发明人： Peter A. Crean ,  Robert P. Loce ,  Edgar Bernal

IPC分类号： H04N1/60

CPC分类号： H04N1/6033 ,  H04N1/6019

摘要： A technique for cross-channel correction in real time for digital color printing in which the full resolution value of a selected colorant is combined with low resolution versions of the remaining colorants to provide a basis for correcting the selected colorant based upon the data for the other colorants employed. The pixel values of sub-samples of the remaining colorants are derived from the cell in which the full resolution selected colorant is taken; and, the desired output value is selected from a look-up table established for the known printing process.

摘要翻译： 一种用于数字彩色打印实时交叉通道校正的技术，其中所选着色剂的全分辨率值与剩余着色剂的低分辨率版本组合，以提供基于另一种数据的数据校正所选着色剂的基础 着色剂就业。 剩余着色剂的子样品的像素值从其中采用全分辨率选择的着色剂的单元导出; 并且从为已知打印处理建立的查找表中选择期望的输出值。

公开(公告)号：US20100091334A1

公开(公告)日：2010-04-15

申请号：US12251808

申请日：2008-10-15

申请人： Mu Qiao ,  Robert P. Loce ,  Shen-Ge Wang ,  Daniel W. Costanza ,  Rakesh S. Kulkarni

发明人： Mu Qiao ,  Robert P. Loce ,  Shen-Ge Wang ,  Daniel W. Costanza ,  Rakesh S. Kulkarni

IPC分类号： H04N1/407 ,  G03G15/00

CPC分类号： H04N1/407 ,  G03G15/5062 ,  G03G2215/0161

摘要： A digital image processing method. The method includes printing a first set of reference marks on one side of a substrate with a first print engine; printing a second set of reference marks on the same side of the substrate as the first set of reference marks with a second print engine; sensing both sets of reference marks on the substrate with an image sensing unit and generating a digital image of the reference marks; performing image analysis on the digital image to obtain an image-to-image distortion map where the image-to-image distortion map is a local measure of difference between the first set of reference marks and the second set of reference marks; and generating a compensated customer image by using the image-to-image distortion map to reduce registration errors when using the first and second print engines.

摘要翻译： 数字图像处理方法。 该方法包括用第一印刷引擎在基板的一侧上印刷第一组参考标记; 使用第二打印引擎在与所述第一组参考标记的所述基板的相同侧上打印第二组参考标记; 用图像感测单元感测基板上的两组参考标记，并产生参考标记的数字图像; 对数字图像执行图像分析以获得图像到图像失真图，其中图像到图像失真图是第一组参考标记和第二组参考标记之间的差的局部度量; 以及通过使用图像到图像失真图来生成补偿的客户图像，以减少当使用第一和第二打印引擎时的注册错误。

公开(公告)号：US20100079813A1

公开(公告)日：2010-04-01

申请号：US12242222

申请日：2008-09-30

申请人： Edgar Bernal ,  Robert P. Loce ,  Shen-Ge Wang

发明人： Edgar Bernal ,  Robert P. Loce ,  Shen-Ge Wang

IPC分类号： H04N1/405

CPC分类号： H04N1/52 ,  H04N1/393 ,  H04N1/40075

摘要： As provided herein, there are supplied teachings to systems and methods for resizing a digital uniform rosette halftone image composed of multiple colorant separations, by using uniform rosette halftone tile parameters and iterative determination of energy metrics. One approach entails receiving into a digital imaging system, a digital uniform rosette halftone image and a desired resizing factor for that digital uniform rosette halftone image. Subsequently the system will define uniform rosette screen parameters to define uniform rosette Holladay halftone tiles within the color uniform rosette digital halftone image. From the defined uniform rosette cells, a number of uniform rosette halftone tile seams are determined for manipulation. The orientation of the number of uniform rosette halftone tile seams is dictated by the received desired resizing factor. The energy of the number of uniform rosette halftone tile seams is determined according to an energy metric so as to provide indication of low energy determined uniform rosette halftone tile seams. A resizing of the uniform rosette halftone image by iteratively deleting a number of the low energy determined uniform rosette halftone tile seam is performed so as to obtain a resized uniform rosette halftone image. The resized uniform rosette halftone image may then be printed on a printer.

摘要翻译： 如本文所提供的，提供了用于通过使用均匀的玫瑰花半色调瓦片参数和能量度量的迭代确定来调整由多个着色剂分离组成的数字均匀玫瑰花半色调图像的系统和方法的教导。 一种方法需要接收数字成像系统，数字均匀花莲半色调图像和用于该数字均匀花莲半色调图像的期望的调整大小因子。 随后，系统将定义均匀的玫瑰花屏幕参数，以在彩色均匀玫瑰花数字半色调图像内定义均匀的玫瑰花Holladay半色调瓷砖。 从定义的均匀花环细胞中，确定了许多均匀的玫瑰花半色调瓷砖接缝用于操纵。 均匀玫瑰状半色调瓷砖接缝数量的取向由接收到的所需调整尺寸系数决定。 根据能量度量确定均匀玫瑰状半色调瓷砖接缝数量的能量，以提供低能量确定的均匀玫瑰花半色调瓷砖接缝的指示。 通过迭代地删除多个低能量确定的均匀玫瑰花结半色调瓦片接缝来调整均匀玫瑰状半色调图像的大小，以获得调整大小的均匀玫瑰花半色调图像。 然后可以在打印机上打印调整大小的均匀花莲半色调图像。

公开(公告)号：US07627191B2

公开(公告)日：2009-12-01

申请号：US11505220

申请日：2006-08-14

申请人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

发明人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

IPC分类号： G06K9/40

CPC分类号： H04N1/3872 ,  H04N1/3877

摘要： Image data is scaled, rotated and/or otherwise manipulated. Diffusive effects of associated interpolation and/or re-sampling are compensated for, or corrected, by applying an adaptive packing form of error diffusion to output data of one or more manipulating transforms. For example, rank order error diffusion is applied to output data of a manipulating transform, thereby restoring compaction to otherwise diffuse halftone structures (e.g., halftone dots, lines, etc), saturated text and/or other small, high contrast image elements.

摘要翻译： 图像数据被缩放，旋转和/或以其它方式操纵。 通过将误差扩散的自适应填充形式应用于一个或多个操纵变换的输出数据来补偿或校正相关内插和/或重新采样的扩散效应。 例如，排序误差扩散被应用于操纵变换的输出数据，由此恢复压缩以另外漫射半色调结构（例如，半色调点，线等），饱和文本和/或其它小的高对比度图像元素。

公开(公告)号：US20090142004A1

公开(公告)日：2009-06-04

申请号：US11948281

申请日：2007-11-30

申请人： Jess R. Gentner ,  Robert P. Loce

发明人： Jess R. Gentner ,  Robert P. Loce

IPC分类号： H04N1/047 ,  H04N1/405

CPC分类号： H04N1/40037 ,  H04N1/0473 ,  H04N2201/02441 ,  H04N2201/04787 ,  H04N2201/04796

摘要： Sub-raster registration errors are compensated for through non-redundant overwriting. Data from adjacent rasters is written to a particular output raster so that the adjacent rasters share an influence at a point actually written to by a rendering device, thereby compensating for a sub-raster component of a registration error associated with writing to the particular point. If two writing passes per raster are used and the writing passes have equal influence (e.g., are written with equal power), then writing data from a first raster during a first pass and writing data from a second raster adjacent to the first raster during a second pass compensates for a sub-raster registration error of half a raster spacing. If two writing passes are associated with different influence (e.g., are written with ⅓ and ⅔ power respectively) and/or if additional writing passes are used, then addition sub-raster positions can be compensated for or emulated.

摘要翻译： 通过非冗余覆盖补偿子光栅注册错误。 来自相邻栅格的数据被写入特定输出栅格，使得相邻栅格在由再现设备实际写入的点上共享影响，从而补偿与向特定点写入相关联的注册错误的子光栅分量。 如果使用每个光栅的两个写入遍历，并且写入通过具有相等的影响（例如，以相等的功率写入），则在第一遍期间从第一光栅写入数据，并且在第一遍期间从与第一光栅相邻的第二光栅写入数据 第二遍补偿半光栅间距的子光栅注册误差。 如果两个写入通道与不同的影响相关联（例如，分别以1/3和2/3功率写入）和/或如果使用附加的写入通道，则可以补偿或仿真加法子光栅位置。

公开(公告)号：US07539351B2

公开(公告)日：2009-05-26

申请号：US11156431

申请日：2005-06-20

申请人： Beilei Xu ,  Robert P. Loce ,  Stuart A. Schweid

发明人： Beilei Xu ,  Robert P. Loce ,  Stuart A. Schweid

IPC分类号： G06K9/36

CPC分类号： H04N1/4092 ,  G06T5/002 ,  G06T7/13 ,  G06T11/203

摘要： Image object adjustment is achieved without lookup tables or templates. Cross sections of image objects are modeled. Parameters of the modeled cross-section are adjusted in accord with a desired effect. For example, a width of the modeled cross section is change. The changed cross section model is sampled to determine a new value for a target pixel. For instance, vector windows are applied to a target pixel. If a candidate image object is included in the vector window, a cross section thereof is modeled as a rectangle. A parameter of the model, such as a width, is adjusted. Area sampling of the adjusted model can be used to determine a new value for the target pixel. Accuracy can be increased by blending information associated with a plurality of vector windows.

摘要翻译： 没有查找表或模板实现图像对象调整。 图像对象的横截面被建模。 根据期望的效果调整建模横截面的参数。 例如，建模的横截面的宽度是变化的。 对变化的截面模型进行采样，以确定目标像素的新值。 例如，矢量窗口被应用于目标像素。 如果候选图像对象包括在向量窗口中，则其横截面被建模为矩形。 调整模型的参数，如宽度。 可以使用经调整的模型的面积采样来确定目标像素的新值。 可以通过混合与多个向量窗口相关联的信息来提高精度。

公开(公告)号：US07376264B2

公开(公告)日：2008-05-20

申请号：US10268246

申请日：2002-10-09

申请人： Robert P. Loce ,  Yeqing (Juliet) Zhang ,  Gaurav Sharma ,  Steven J. Harrington

发明人： Robert P. Loce ,  Yeqing (Juliet) Zhang ,  Gaurav Sharma ,  Steven J. Harrington

IPC分类号： G06K9/00

CPC分类号： H04N1/4446

摘要： Methods and apparatus for spectrally-encoding plural source images and for providing the spectrally-encoded plural source images in a composite image, for rendering the composite image on a substrate, or for recovering at least one of the encoded source images from the rendered composite image such that the recovered source image is made distinguishable. The rendered composite image includes at least a first source image that is encoded and rendered with use of a selected colorant so as to be visually discernible on the substrate during a plurality of modes of intended illumination as a “background” image, and a second, “narrow band” source image that is encoded in the composite image so as to be recovered when illuminated by at least a selected of the plurality of modes of intended illumination that employs complementary narrow band illuminant.

摘要翻译： 用于频谱编码多个源图像并用于在合成图像中提供频谱编码的多个源图像的方法和装置，用于在基板上渲染合成图像，或用于从所渲染的合成图像中恢复至少一个编码源图像 使得恢复的源图像是可区分的。 所渲染的合成图像至少包括使用选定的着色剂编码和渲染的第一源图像，以便在作为“背景”图像的预定照明的多个模式期间在基板上在视觉上可辨别， 在合成图像中被编码的“窄带”源图像，以便在使用补充窄带光源的多个预期照明模式中的至少一个选择的照明下被恢复。

公开(公告)号：US20080037899A1

公开(公告)日：2008-02-14

申请号：US11505220

申请日：2006-08-14

申请人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

发明人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

IPC分类号： G06K9/36 ,  G06K9/32

CPC分类号： H04N1/3872 ,  H04N1/3877

摘要： Image data is scaled, rotated and/or otherwise manipulated. Diffusive effects of associated interpolation and/or re-sampling are compensated for, or corrected, by applying an adaptive packing form of error diffusion to output data of one or more manipulating transforms. For example, rank order error diffusion is applied to output data of a manipulating transform, thereby restoring compaction to otherwise diffuse halftone structures (e.g., halftone dots, lines, etc), saturated text and/or other small, high contrast image elements.

摘要翻译： 图像数据被缩放，旋转和/或以其它方式操纵。 通过将误差扩散的自适应填充形式应用于一个或多个操纵变换的输出数据来补偿或校正相关内插和/或重新采样的扩散效应。 例如，排序误差扩散被应用于操纵变换的输出数据，由此恢复压缩以另外漫射半色调结构（例如，半色调点，线等），饱和文本和/或其它小的高对比度图像元素。

公开(公告)号：US07295346B2

公开(公告)日：2007-11-13

申请号：US10601686

申请日：2003-06-23

申请人： Robert P. Loce ,  Jon S. McElvain

发明人： Robert P. Loce ,  Jon S. McElvain

IPC分类号： G06K15/00

CPC分类号： H04N1/4092 ,  G06T5/002 ,  G06T2200/12 ,  G06T2207/30176 ,  H04N1/409 ,  H04N1/58

摘要： Methods and apparatus for antialiasing images that contain one or more image objects such as colored text, line art, and graphical objects, such that the edge pixels of an antialiased image object will exhibit relatively uniform values, and the appearance of the image object is thereby improved. In one embodiment, an improved antialiasing filter is employed to detect at least one region within the received image. Upon detecting a region containing a background image level that adjoins an image object having pixel values in a range other than a range of limit values, the antialiasing filter sets the pixel values of the edge or border pixels of the image object to substantially the same value. Selection among a logical filter operation and an averaging filter operation may be adaptively employed in the antialiasing filter in order to obtain the desired uniformity of pixel values.

摘要翻译： 用于对包含一个或多个图像对象（例如彩色文本，线条图形和图形对象）的图像进行抗锯齿的方法和装置，使得抗锯齿图像对象的边缘像素将呈现相对均匀的值，并且因此图像对象的外观 改进。 在一个实施例中，采用改进的抗混叠滤波器来检测接收到的图像内的至少一个区域。 在检测到包含与限制值范围以外的范围内的像素值相邻的背景图像级别的区域时，抗锯齿滤波器将图像对象的边缘或边界像素的像素值设定为基本相同的值 。 可以在抗混叠滤波器中自适应地采用逻辑滤波器操作和平均滤波器操作之间的选择，以便获得期望的像素值的均匀性。