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1. 发明申请

US20100214341A1 COLOR PRINTING 有权
标题翻译：彩色打印
公开(公告)号：US20100214341A1
公开(公告)日：2010-08-26
申请号：US12390583
申请日：2009-02-23
申请人： XING LI , Francis K. Tse , Zhenhuan Wen , David Metcalfe
发明人： XING LI , Francis K. Tse , Zhenhuan Wen , David Metcalfe
IPC分类号： B41J2/205
CPC分类号： H04N1/6022 , H04N1/52
摘要： A method of printing comprising setting a pixel black value of K for an ink limit and identifying each of black dots of a first subset of black dots having pixel black value K greater than the ink limit, and pixel color value of cyan, magenta, and yellow equal to zero. The method further comprises rendering only K for a pixel value for the first subset of black dots and replacing each of black dots of a second subset of black dots of a halftoned bit map for a predetermined area with a process black dot. The method still further comprises adding a non-black dot to each of black dots of a third subset of black dots of the bit-mapped data, wherein the halftoned bit map is generated by halftoning continuous tone data; wherein the black dots of the third subset comprises a percentage of all the black dots that tends to generally increase as a ratio of black coverage to total coverage in the predetermined area increases; wherein the first, second, and third subset comprises black dots that are mutually exclusive; and, printing the bit map.
摘要翻译：一种打印方法，包括：将墨水极限的像素黑值设置为K，并且识别具有大于墨水限制的像素黑值K的黑点的第一子集的黑点，以及青色，品红色和黄色等于零。该方法还包括仅为黑色点的第一子集渲染像素值的K，并用处理黑点代替预定区域的半色调位图的第二子黑点的每个黑点。该方法还包括向比特映射数据的黑点的第三子集中的每个黑点添加非黑点，其中通过对连续色调数据进行半色调生成半色调比特图; 其中所述第三子集的黑点包括随着所述预定区域中的黑色覆盖率与总覆盖率的比率增加而趋于一般增加的所有黑点的百分比; 其中所述第一，第二和第三子集包括相互排斥的黑点; 并打印位图。

2. 发明授权

US08068257B2 Color printing reducing artifacts and banding by rendering black dots, replacing dots with process black, and adding non-black dots for different subsets of black dots 有权
标题翻译：彩色打印通过渲染黑点减少伪影和条纹，用过程黑色代替点，并为不同的黑点子集添加非黑点
公开(公告)号：US08068257B2
公开(公告)日：2011-11-29
申请号：US12390583
申请日：2009-02-23
申请人： Xing Li , Francis K. Tse , Zhenhuan Wen , David J. Metcalfe
发明人： Xing Li , Francis K. Tse , Zhenhuan Wen , David J. Metcalfe
IPC分类号： H04N1/52 , H04N1/58 , H04N1/034 , B41J2/205
CPC分类号： H04N1/6022 , H04N1/52
摘要： A method of printing comprising setting a pixel black value of K for an ink limit and identifying each of black dots of a first subset of black dots having pixel black value K greater than the ink limit, and pixel color value of cyan, magenta, and yellow equal to zero. The method further comprises rendering only K for a pixel value for the first subset of black dots and replacing each of black dots of a second subset of black dots of a halftoned bit map for a predetermined area with a process black dot. The method still further comprises adding a non-black dot to each of black dots of a third subset of black dots of the bit-mapped data, wherein the halftoned bit map is generated by halftoning continuous tone data; wherein the black dots of the third subset comprises a percentage of all the black dots that tends to generally increase as a ratio of black coverage to total coverage in the predetermined area increases; wherein the first, second, and third subset comprises black dots that are mutually exclusive; and, printing the bit map.
摘要翻译：一种打印方法，包括：将墨水极限的像素黑值设置为K，并识别具有比墨水限制大的像素黑色值K的黑色第一子集的黑点，以及青色，品红色和黄色等于零。该方法还包括仅为黑色点的第一子集渲染像素值的K，并用处理黑点代替预定区域的半色调位图的第二子黑点的每个黑点。该方法还包括向比特映射数据的黑点的第三子集中的每个黑点添加非黑点，其中通过对连续色调数据进行半色调生成半色调比特图; 其中所述第三子集的黑点包括随着所述预定区域中的黑色覆盖率与总覆盖率的比率增加而趋于一般增加的所有黑点的百分比; 其中所述第一，第二和第三子集包括相互排斥的黑点; 并打印位图。

3. 发明授权

US08253979B2 Method of processing neutral gray color print jobs as monochrome black during billing detection and printing as a neutral gray composite black 有权
标题翻译：在计费检测和打印期间将中性灰色打印作业处理为单色黑色的方法为中性灰色复合黑色
公开(公告)号：US08253979B2
公开(公告)日：2012-08-28
申请号：US12366268
申请日：2009-02-05
申请人： Zhenhuan Wen , Francis K. Tse
发明人： Zhenhuan Wen , Francis K. Tse
IPC分类号： H04N1/405
CPC分类号： H04N1/4052
摘要： A method of converting a RIPped K-only page or pixels to composite black in a digital print engine is included which executes the conversion process during current job workflow, while detecting the K-only page or pixels for billing purposes as K-only, and printed out as composite black.
摘要翻译：包括在数字打印引擎中将RIP仅K页面或像素转换为复合黑色的方法，其在当前作业工作流程期间执行转换处理，同时仅将K页面或像素用于计费目的为K，以及印刷为复合黑色。

4. 发明申请

US20120293815A1 METHOD OF PROCESSING NEUTRAL GRAY COLOR PRINT JOBS AS MONOCHROME BLACK DURING BILLING DETECTION AND PRINTING AS A NEUTRAL GRAY COMPOSITE BLACK 有权
标题翻译：中性灰色彩色打印作业中的黑色黑色复合黑色处理中的单色黑色处理方法
公开(公告)号：US20120293815A1
公开(公告)日：2012-11-22
申请号：US13562359
申请日：2012-07-31
申请人： Zhenhuan Wen , Francis K. Tse
发明人： Zhenhuan Wen , Francis K. Tse
IPC分类号： G06K15/02
CPC分类号： H04N1/4052
摘要： A method of converting a RIPped K-only page or pixels to composite black in a digital print engine is included which executes the conversion process during current job workflow, while detecting the K-only page or pixels for billing purposes as K-only, and printed out as composite black.
摘要翻译：包括在数字打印引擎中将RIP仅K页面或像素转换为复合黑色的方法，其在当前作业工作流程期间执行转换处理，同时仅将K页面或像素用于计费目的为K，以及印刷为复合黑色。

5. 发明申请

US20100195158A1 Method of processing neutral gray color print jobs as monochrome black during billing detection and printing as a neutral gray composite black 有权
标题翻译：在计费检测和打印期间将中性灰色打印作业处理为单色黑色的方法为中性灰色复合黑色
公开(公告)号：US20100195158A1
公开(公告)日：2010-08-05
申请号：US12366268
申请日：2009-02-05
申请人： Zhenhuan Wen , Francis K. Tse
发明人： Zhenhuan Wen , Francis K. Tse
IPC分类号： H04N1/40
CPC分类号： H04N1/4052
摘要： A method of converting a RIPped K-only page or pixels to composite black in a digital print engine is included which executes the conversion process during current job workflow, while detecting the K-only page or pixels for billing purposes as K-only, and printed out as composite black.
摘要翻译：包括在数字打印引擎中将RIP仅K页面或像素转换为复合黑色的方法，其在当前作业工作流程期间执行转换处理，同时仅将K页面或像素用于计费目的为K，以及印刷为复合黑色。

6. 发明授权

US08422078B2 Method of processing neutral gray color print jobs as monochrome black during billing detection and printing as a neutral gray composite black 有权
标题翻译：在计费检测和打印期间将中性灰色打印作业处理为单色黑色的方法为中性灰色复合黑色
公开(公告)号：US08422078B2
公开(公告)日：2013-04-16
申请号：US13562359
申请日：2012-07-31
申请人： Zhenhuan Wen , Francis K. Tse
发明人： Zhenhuan Wen , Francis K. Tse
IPC分类号： H04N1/40
CPC分类号： H04N1/4052
摘要： A method of converting a RIPped K-only page or pixels to composite black in a digital print engine is included which executes the conversion process during current job workflow, while detecting the K-only page or pixels for billing purposes as K-only, and printed out as composite black.
摘要翻译：包括在数字打印引擎中将RIP仅K页面或像素转换为复合黑色的方法，其在当前作业工作流程期间执行转换处理，同时仅将K页面或像素用于计费目的为K，以及印刷为复合黑色。

7. 发明申请

US20070002381A1 Error diffusion method and hardware architecture 有权
标题翻译：错误扩散方法和硬件架构
公开(公告)号：US20070002381A1
公开(公告)日：2007-01-04
申请号：US11172151
申请日：2005-06-30
申请人： David Metcalfe , Zhenhuan Wen , Robert Robideau
发明人： David Metcalfe , Zhenhuan Wen , Robert Robideau
IPC分类号： H04N1/40
CPC分类号： H04N1/4052
摘要： A system and method for performing threshold stamping are disclosed. First and second threshold values corresponding to first and second pixels may be retrieved from a threshold memory. A plurality of upscaled threshold values may optionally be computed based on the first threshold value and the second threshold value. An (upscaled) threshold value may be updated at each of one or more first register blocks. A binary pixel value may be computed based at least in part on the first updated threshold value. The first updated threshold value may be updated at each of one or more second register blocks. A downscaled threshold value may optionally be computed based on a plurality of second updated threshold values. The downscaled threshold value or second updated threshold value may be damped in a damping circuit, and the damped threshold value may be stored in the threshold memory.
摘要翻译：公开了一种执行阈值冲压的系统和方法。可以从阈值存储器检索对应于第一和第二像素的第一和第二阈值。可以可选地基于第一阈值和第二阈值来计算多个放大的阈值。可以在一个或多个第一寄存器块的每个处更新一个（放大的）阈值。可以至少部分地基于第一更新阈值来计算二进制像素值。可以在一个或多个第二寄存器块的每一个处更新第一更新阈值。可以可选地基于多个第二更新阈值来计算缩小的阈值。降低阈值或第二更新阈值可以在阻尼电路中衰减，并且阻尼阈值可以存储在阈值存储器中。

8. 发明授权

US08842342B2 Method and system for isolated hole detection and growth in a document image 有权
标题翻译：在文件图像中孤立孔检测和生长的方法和系统
公开(公告)号：US08842342B2
公开(公告)日：2014-09-23
申请号：US13547670
申请日：2012-07-12
申请人： Xing Li , Zhenhuan Wen , Amal Malik
发明人： Xing Li , Zhenhuan Wen , Amal Malik
IPC分类号： H04N1/40 , G06T5/00 , H04N1/46
CPC分类号： G06K9/44 , G06K9/00442 , G06K2209/01 , H04N1/40037 , H04N1/4092
摘要： A method for detecting and growing isolated holes in a document image having a plurality of pixels is provided. The method includes isolating the pixels of the image to form a plurality of windows, each window having a target pixel; identifying a hole growth factor to grow an isolated hole in the received image; using the hole growth factor to identify tiered pixel patterns from a plurality of predefined, tiered pixel patterns, wherein each of the tiered pixel patterns having a predetermined hole growth factor; comparing the pixels within each window to the pixel patterns within the identified tier to identify a match between the pixels within the window and at least one of the pixel patterns; and changing a pixel value of the target pixel, when a match is identified, to grow the isolated hole by the hole growth factor.
摘要翻译：提供了一种用于在具有多个像素的文档图像中检测和增长隔离孔的方法。该方法包括隔离图像的像素以形成多个窗口，每个窗口具有目标像素; 识别孔生长因子以在接收的图像中生长孤立的孔; 使用所述孔生长因子来从多个预定义的分层像素图案中识别分层像素图案，其中每个所述分层像素图案具有预定的孔生长因子; 将每个窗口内的像素与所识别的层中的像素图案进行比较，以识别窗口内的像素与至少一个像素图案之间的匹配; 以及当识别匹配时，改变目标像素的像素值，以通过所述孔生长因子来生长所述隔离孔。

9. 发明授权

US08705140B2 Systems and methods for dynamic sharpness control in system using binary to continuous tone conversion 有权
标题翻译：使用二进制到连续色调转换的系统中动态清晰度控制的系统和方法
公开(公告)号：US08705140B2
公开(公告)日：2014-04-22
申请号：US13585553
申请日：2012-08-14
申请人： Xing Li , Zhenhuan Wen , Peter D. McCandlish
发明人： Xing Li , Zhenhuan Wen , Peter D. McCandlish
IPC分类号： G06T5/00 , H04N1/407 , H04N1/409
CPC分类号： H04N1/4092 , H04N1/40075
摘要： Embodiments relate to systems and methods for dynamic sharpness control in system using binary to continuous tone conversion. Image data can be processed in the image path of a copier, printer, or other device to enhance sharpness based on user settings. The image can originate in a high-resolution and/or high-color format. The user can select sharpness values to provide better rendered detail. A front-end high-pass 2D filter can be adjusted in response to the settings. A binarized version of the image data is produced in the downstream path. At the back of the image path, the image would conventionally be sent through a binary data to extended contone (BDEC) low-pass filter, set to a fixed level, to produce contone output, counteracting the user's sharpness settings. Instead of applying a fixed back-end filter, that stage can be dynamically adjusted to correspond to the user's sharpness settings, reducing the low-pass effect proportionately.
摘要翻译：实施例涉及使用二进制到连续色调转换的系统中的动态清晰度控制的系统和方法。可以在复印机，打印机或其他设备的图像路径中处理图像数据，以根据用户设置增强锐度。该图像可以以高分辨率和/或高色格式出现。用户可以选择锐度值来提供更好的渲染细节。可以根据设置调整前端高通2D滤镜。图像数据的二值化版本在下游路径中产生。在图像路径的背面，图像通常将通过二进制数据发送到扩展连续色调（BDEC）低通滤波器，设置为固定电平，以产生连续色调输出，抵消用户的锐度设置。代替应用固定的后端滤波器，该阶段可以动态调整以对应于用户的锐度设置，按比例降低低通效果。

10. 发明授权

US08665499B2 Isolated hole detection and growth 有权
标题翻译：隔离孔检测和生长
公开(公告)号：US08665499B2
公开(公告)日：2014-03-04
申请号：US13547839
申请日：2012-07-12
申请人： Amal Malik , Zhenhuan Wen , Xing Li
发明人： Amal Malik , Zhenhuan Wen , Xing Li
IPC分类号： H04N1/407
CPC分类号： H04N1/4092 , G06K9/44 , G06K2209/01 , H04N1/40037
摘要： The present disclosure relates to a method and system for processing isolated holes in an image to be printed or displayed. The method includes detecting whether pixels corresponding to an isolated hole in the image are in an off state, determining a sum of pixels that are in an on state in a first pixel ring surrounding the pixels corresponding to the isolated hole when the one or more pixels in the isolated hole are detected to be in the off state, comparing the sum of pixels in the pixel ring that are in the on state with a threshold sum, turning off a number of pixels in at least another pixel ring either comprising of or surrounding the pixels when the first sum of pixels in the on state is greater than the threshold sum, and outputting the isolated hole including the turned off first number of pixels.
摘要翻译：本公开涉及一种用于处理要打印或显示的图像中的隔离孔的方法和系统。该方法包括检测对应于图像中的孤立孔的像素是否处于关闭状态，当一个或多个像素（像素）确定围绕与孤立孔对应的像素的第一像素环中的处于导通状态的像素的总和在隔离孔中被检测为处于关闭状态，将处于导通状态的像素环中的像素的总和与阈值和进行比较，关闭至少另一像素环中的像素的数量，包括或围绕当处于导通状态的第一个像素总和大于阈值和时的像素，并且输出包括关闭的第一数量的像素的隔离孔。

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