公开(公告)号：US08805069B2

公开(公告)日：2014-08-12

申请号：US13494760

申请日：2012-06-12

申请人： Guo Li ,  Kenneth A. Schmidt ,  Dongpei Su ,  Stephen L. Schafer ,  Alfred Abkarian ,  Sheng Li ,  Michael M. Chang

发明人： Guo Li ,  Kenneth A. Schmidt ,  Dongpei Su ,  Stephen L. Schafer ,  Alfred Abkarian ,  Sheng Li ,  Michael M. Chang

IPC分类号： G06K9/00 ,  G06T9/00

CPC分类号： H04N1/64

摘要： An m×n pixel cell may be obtained from an input image, each of the pixels having a respective color value. A characterization of the cell may be determined, including determining a lowest color value and a highest color value of the pixels cell. A difference between the highest color value and the lowest color value may be calculated. If the difference is less than or equal to a threshold difference, an output color value inclusively between the highest color value and the lowest color value may be selected, and a first representation of the output color value may be written to an output medium. If the difference is greater than the threshold difference, multiple output color values may be selected, and a second representation of the multiple output color values may be written to the output medium.

摘要翻译： 可以从输入图像获得m×n个像素单元，每个像素具有相应的颜色值。 可以确定单元的表征，包括确定像素单元的最低颜色值和最高颜色值。 可以计算最高颜色值和最低颜色值之间的差异。 如果差值小于或等于阈值差，则可以选择包括最高颜色值和最低颜色值之间的输出颜色值，并且可以将输出颜色值的第一表示写入输出介质。 如果差值大于阈值差，则可以选择多个输出颜色值，并且多个输出颜色值的第二表示可以被写入输出介质。

公开(公告)号：US20130329237A1

公开(公告)日：2013-12-12

申请号：US13494760

申请日：2012-06-12

申请人： Guo Li ,  Kenneth A. Schmidt ,  Dongpei Su ,  Stephen L. Schafer ,  Alfred Abkarian ,  Sheng Li ,  Michael M. Chang

发明人： Guo Li ,  Kenneth A. Schmidt ,  Dongpei Su ,  Stephen L. Schafer ,  Alfred Abkarian ,  Sheng Li ,  Michael M. Chang

IPC分类号： G06T9/00 ,  G06K15/02

CPC分类号： H04N1/64

摘要： An m×n pixel cell may be obtained from an input image, each of the pixels having a respective color value. A characterization of the cell may be determined, including determining a lowest color value and a highest color value of the pixels cell. A difference between the highest color value and the lowest color value may be calculated. If the difference is less than or equal to a threshold difference, an output color value inclusively between the highest color value and the lowest color value may be selected, and a first representation of the output color value may be written to an output medium. If the difference is greater than the threshold difference, multiple output color values may be selected, and a second representation of the multiple output color values may be written to the output medium.

摘要翻译： 可以从输入图像获得m×n个像素单元，每个像素具有相应的颜色值。 可以确定单元的表征，包括确定像素单元的最低颜色值和最高颜色值。 可以计算最高颜色值和最低颜色值之间的差异。 如果差值小于或等于阈值差，则可以选择包括最高颜色值和最低颜色值之间的输出颜色值，并且可以将输出颜色值的第一表示写入输出介质。 如果差值大于阈值差，则可以选择多个输出颜色值，并且多个输出颜色值的第二表示可以被写入输出介质。

公开(公告)号：US08199359B2

公开(公告)日：2012-06-12

申请号：US11789206

申请日：2007-04-24

申请人： Lakhbir Gandhi ,  Robert Westervelt ,  Kenneth A. Schmidt ,  Dongpei Su ,  Alfred Abkarian ,  Mark Raley

发明人： Lakhbir Gandhi ,  Robert Westervelt ,  Kenneth A. Schmidt ,  Dongpei Su ,  Alfred Abkarian ,  Mark Raley

IPC分类号： G06F15/00

CPC分类号： H04N1/58

摘要： A system and method for trapping in electrophotographic color printing and related technologies for printing or display in which the final image is an overlay of multiple components subject to alignment errors. Trapping is based on the cyan (C), magenta (M), and black (K) planes. There are four steps as follows: detect object edges on each of the four color planes; detect coincident and opposing edge transitions on each pair of planes (CM, CK, and KM); determine which plane to trap, i.e., to extend object across edge; and generate trap on that plane using a simple trap generation rule and a single trap generation rule.

摘要翻译： 用于捕获电子照相彩色打印的系统和方法以及用于打印或显示的相关技术，其中最终图像是受到对准误差的多个部件的覆盖。 捕获是基于青色（C），品红色（M）和黑色（K）面。 有四个步骤如下：检测四个颜色平面中的每一个上的物体边缘; 检测每对平面（CM，CK和KM）上的重合和相对的边缘过渡; 确定要捕获的平面，即，跨越边缘延伸物体; 并使用简单的陷阱生成规则和单个陷阱生成规则在该平面上生成陷阱。

公开(公告)号：US20080007752A1

公开(公告)日：2008-01-10

申请号：US11789206

申请日：2007-04-24

申请人： Lakhbir Gandhi ,  Robert Westervelt ,  Kenneth Schmidt ,  Dongpei Su ,  Alfred Abkarian ,  Mark Raley

发明人： Lakhbir Gandhi ,  Robert Westervelt ,  Kenneth Schmidt ,  Dongpei Su ,  Alfred Abkarian ,  Mark Raley

IPC分类号： G06F15/00

CPC分类号： H04N1/58

摘要： A system and method for trapping in electrophotographic color printing and related technologies for printing or display in which the final image is an overlay of multiple components subject to alignment errors. Trapping is based on the cyan (C), magenta (M), and black (K) planes. There are four steps as follows: detect object edges on each of the four color planes; detect coincident and opposing edge transitions on each pair of planes (CM, CK, and KM); determine which plane to trap, i.e., to extend object across edge; and generate trap on that plane using a simple trap generation rule and a single trap generation rule.

摘要翻译： 用于捕获电子照相彩色打印的系统和方法以及用于打印或显示的相关技术，其中最终图像是受到对准误差的多个部件的覆盖。 捕获是基于青色（C），品红色（M）和黑色（K）面。 有四个步骤如下：检测四个颜色平面中的每一个上的物体边缘; 检测每对平面（CM，CK和KM）上的重合和相对的边缘过渡; 确定要捕获的平面，即，跨越边缘延伸物体; 并使用简单的陷阱生成规则和单个陷阱生成规则在该平面上生成陷阱。

公开(公告)号：US20050068207A1

公开(公告)日：2005-03-31

申请号：US10672426

申请日：2003-09-25

申请人： Dongpei Su ,  Matthew Lipman ,  Raymond Robinson ,  Michele Lipman

发明人： Dongpei Su ,  Matthew Lipman ,  Raymond Robinson ,  Michele Lipman

IPC分类号： G06F20060101 ,  H03M7/00 ,  H03M7/46

CPC分类号： H03M7/46

摘要： The embodiments of the invention include a system and method for losslessly encoding and compressing a data stream. The data stream may be an image, text or combination of the two. The data stream may be received from a computer application or peripheral device. The encoding compresses the data stream by comparing consecutive values of the data stream and encoding the data based on the difference between consecutive data values.