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11. 发明授权

US08194288B2 Adjusting the neutral behavior of a color marking device 有权
标题翻译：调整彩色标记装置的中性行为
公开(公告)号：US08194288B2
公开(公告)日：2012-06-05
申请号：US12429397
申请日：2009-04-24
申请人： Zhenhuan Wen , Martin S. Maltz
发明人： Zhenhuan Wen , Martin S. Maltz
IPC分类号： H04N1/40
CPC分类号： H04N1/608
摘要： What is disclosed is a novel system and method for adjusting the gray balance of a multifunction color marking device in order to change the device's neutral behavior to a desired level of acceptability. The gray balance aim curve is specified by: L*, L*(aim), a*(aim) and b*(aim), where L*(aim)=f1(L*), a*(aim)=f2(L*), and b*(aim)=f3(L*). After receiving the user-modified gray balance aim curve, the target color device constructs a 3-D N×N×N L*a*b* to L*a*b* pre-LUT to reflect the neutral aim change by transforming a neutral axis input of L*, a*=0 and b*=0 to L*(aim), a*(aim) and b*(aim). Colors further away from the neutral axis are shifted by a lesser amount. The pre-LUT is then concatenated with the current color LUT to produce an updated color LUT which is applied to the device to achieve the desired neutral behavior. The gray balance aim curve can also be based upon a pre-determined user preference.
摘要翻译：所公开的是用于调整多功能彩色标记装置的灰度平衡以便将装置的中性行为改变到期望的可接受程度的新型系统和方法。灰度平衡目标曲线由下式指定：L *，L *（瞄准），a *（瞄准）和b *（瞄准），其中L *（瞄准）= f1（L *），a *（瞄准）= f2 （L *）和b *（aim）= f3（L *）。在接收到用户修改的灰平衡目标曲线之后，目标彩色装置通过将中性轴变换为中性目标变化来构造一个3-DN×N×NL * a * b *到L * a * b * L *，a * = 0和b * = 0到L *（瞄准），a *（瞄准）和b *（瞄准）的输入。远离中性轴的颜色偏移较少。然后，将前LUT与当前颜色LUT进行连接以产生更新的颜色LUT，其被施加到设备以实现期望的中性行为。灰平衡目标曲线也可以基于预先确定的用户偏好。

12. 发明申请

US20090073496A1 ERROR DIFFUSION METHOD AND HARDWARE ARCHITECTURE 有权
标题翻译：错误扩展方法和硬件架构
公开(公告)号：US20090073496A1
公开(公告)日：2009-03-19
申请号：US12274842
申请日：2008-11-20
申请人： David Jon Metcalfe , Zhenhuan Wen , Robert Paul Robideau
发明人： David Jon Metcalfe , Zhenhuan Wen , Robert Paul 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。

13. 发明授权

US07319545B2 Method and apparatus for calibration of a color printer 有权
标题翻译：彩色打印机的校准方法和装置
公开(公告)号：US07319545B2
公开(公告)日：2008-01-15
申请号：US10623944
申请日：2003-07-21
申请人： Stephen F. Linder , Zhenhuan Wen , Peter D. McCandlish , Yingjun Bai , Clara Cuciurean-Zapan
发明人： Stephen F. Linder , Zhenhuan Wen , Peter D. McCandlish , Yingjun Bai , Clara Cuciurean-Zapan
IPC分类号： G06F15/00
CPC分类号： H04N1/6033
摘要： A method permitting an end user to recalibrate a color reproduction device. The color reproduction device includes a device for converting the native color values of the scanner into a device independent color space, a test target, and the desired values of each patch of the test target. The method includes printing the test target and scanning it with a scanner that forms a part of the color reproduction device. The device compares the desired values with the values obtained from scanning the printed test target to obtain a set of adjustment values to compensate for drift in the output of the color reproduction device. The compensation emphasizes restoration of the overall gray balance of the color reproduction device and can be implemented by modifying the tone reproduction curves or the halftone process used in the color reproduction device.
摘要翻译：允许终端用户重新校准颜色再现设备的方法。色彩还原装置包括用于将扫描仪的本机颜色值转换为装置独立颜色空间，测试目标以及测试对象的每个贴片的期望值的装置。该方法包括打印测试对象并用形成彩色再现设备的一部分的扫描仪进行扫描。该装置将所需的值与从打印的测试目标扫描获得的值进行比较，以获得一组调整值，以补偿色彩再现装置的输出中的漂移。该补偿强调了色彩再现装置的整体灰度平衡的恢复，并且可以通过修改在色彩再现装置中使用的色调再现曲线或半色调处理来实现。

14. 发明授权

US07221479B2 Method for avoiding multiple color moirés in color halftoning 有权
标题翻译：避免彩色色调中多种颜色莫尔色的方法
公开(公告)号：US07221479B2
公开(公告)日：2007-05-22
申请号：US10449424
申请日：2003-05-30
申请人： Zhenhuan Wen
发明人： Zhenhuan Wen
IPC分类号： H04N1/52 , H04N1/58
CPC分类号： H04N1/52
摘要： A method for halftoning an image, including receiving image data including a plurality of color separations and comparing image data for first, second, third, and fourth separations to first, second, third, and fourth halftone screens. The screens are characterized by first, second, third, and fourth pairs of frequency vectors, respectively. The fourth pair of frequency vectors is identical to one of the first, second, and third pairs of frequency vectors. Further, the first, second, third, and fourth screens have an associated fill-in sequence, where the fill-in sequence of the fourth screen is such that overlap between the separation corresponding to the fourth screen and the separation corresponding to the one of the first, second, and third screens to which the fourth screen has an identical pair of frequency vectors does not occur until a combined dot area coverage of the separations is greater than 100%.
摘要翻译：一种用于半色调图像的方法，包括接收包括多个分色的图像数据，并将第一，第二，第三和第四分离的图像数据与第一，第二，第三和第四半色调屏幕进行比较。屏幕分别由第一，第二，第三和第四对频率矢量表征。第四对频率矢量与第一，第二和第三对频率矢量之一相同。此外，第一，第二，第三和第四屏幕具有相关联的填充序列，其中第四屏幕的填充顺序使得对应于第四屏幕的分离与对应于第四屏幕的分离之间的重叠第四屏幕具有相同频率矢量对的第一，第二和第三屏幕直到分离的组合点区域覆盖率大于100％才会发生。

15. 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。

16. 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。

17. 发明授权

US07760390B2 Binary resolution conversion aparatus and method 失效
标题翻译：二进制分辨率转换装置及方法
公开(公告)号：US07760390B2
公开(公告)日：2010-07-20
申请号：US11300835
申请日：2005-12-15
申请人： Zhenhuan Wen , Francis Kapo Tse , Xing Li
发明人： Zhenhuan Wen , Francis Kapo Tse , Xing Li
IPC分类号： G06K15/02 , G06K9/32
CPC分类号： G06K15/02 , G06T3/403 , H04N1/40068
摘要： A binary resolution conversion apparatus and method is provided. According to one exemplary embodiment, a binary resolution conversion method includes an image processing method comprising a data processing process comprising a first video data input process receiving a first video data group associated with one or more horizontal and vertical edges of an image, and one or more horizontal and vertical thin lines of the image; a second video data input process receiving a second video data group associated with one or more slanted edges and one or more slanted lines of the image, and one or more objects of the image; a tag data input process receiving tag data associated with image edge and image thin line detection data; and a first video data input providing the video data output to a first video data output if the tag data input indicates an image edge or image thin line, otherwise a second video data input providing the video data output.
摘要翻译：提供二进制分辨率转换装置和方法。根据一个示例性实施例，二进制分辨率转换方法包括图像处理方法，该方法包括数据处理过程，该数据处理过程包括接收与图像的一个或多个水平和垂直边缘相关联的第一视频数据组的第一视频数据输入过程，以及一个或更多的水平和垂直细线的图像; 第二视频数据输入处理，其接收与图像的一个或多个倾斜边缘和一条或多条倾斜线相关联的第二视频数据组，以及图像的一个或多个对象; 标签数据输入处理接收与图像边缘相关联的标签数据和图像细线检测数据; 以及第一视频数据输入，如果标签数据输入指示图像边缘或图像细线，则将视频数据输出提供给第一视频数据输出，否则提供提供视频数据输出的第二视频数据输入。

18. 发明申请

US20090009778A1 Converting black to composite black in digital printing 有权
标题翻译：在数码印刷中将黑色转换为复合黑色
公开(公告)号：US20090009778A1
公开(公告)日：2009-01-08
申请号：US11824689
申请日：2007-07-02
申请人： Zhenhuan Wen
发明人： Zhenhuan Wen
IPC分类号： G06F15/00
CPC分类号： H04N1/46 , H04N1/6022
摘要： A method of converting black to composite/process black in a digital color print engine. A lightness adjustment is employed for converting input image (O, O, O, Kin) to Ko and initial values of Co, Mo, Yo are set equal to Ko and then converted to C1, M1, Y1, K1 by GCR strategy. Values of Cout, Mout, Yout, Kout are determined by Gray Balance Adjustment for values of C1, M1, Y1, K1 and inputted to the color print engine. The user may disable the conversion to composite black and print black ink/tones if desired. The user may also input different parameters for Lightness Adjustment, Gray Component Replacement and Gray Balance Adjustment.
摘要翻译：在数字彩色打印引擎中将黑色转换为复合/处理黑色的方法。采用亮度调整将输入图像（O，O，O，Kin）转换为Ko，Co，Mo，Yo的初始值设置为Ko，然后通过GCR策略转换为C1，M1，Y1，K1。 Cout，Mout，Yout，Kout的值由C1，M1，Y1，K1的值通过灰度平衡调整确定，并输入到彩色打印引擎。如果需要，用户可以禁用转换为复合黑色并打印黑色墨水/色调。用户还可以为亮度调整，灰度元件更换和灰度平衡调整输入不同的参数。

19. 发明授权

US08804200B2 Method and system for isolated dot detection and growth in a document image 有权
标题翻译：用于文档图像中孤立点检测和增长的方法和系统
公开(公告)号：US08804200B2
公开(公告)日：2014-08-12
申请号：US13547738
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： H04N1/4092 , H04N1/405
摘要： A method for detecting and growing isolated dots 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; detecting an isolated dot in the received image; identifying a dot growth factor to grow the detected isolated dot in the received image; using the dot 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 dot 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 dot by the dot 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孤立点的方法。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; 检测接收到的图像中的孤立点; 识别点生长因子以增加接收到的图像中检测到的孤立点; 使用所述点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点生长因子; 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; 并且当识别出匹配时，改变目标像素的像素值，以使点生长因子增加孤立点。

20. 发明授权

US08670157B2 Dot growth system and method 有权
标题翻译：点生长系统和方法
公开(公告)号：US08670157B2
公开(公告)日：2014-03-11
申请号：US13547765
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： G06K15/00
CPC分类号： G06K15/1871
摘要： The present disclosure relates to a method and system for processing isolated dots of an image to be printed by a printer. The method includes detecting whether pixels corresponding to an isolated dot in the image are in an on state. A first sum of pixels that are in an on state in a first pixel ring surrounding the pixels corresponding to the isolated dot when the pixels in the isolated dot are detected to be in the on state is determined. The first sum of pixels in the first pixel ring that are in the on state is compared with a first threshold sum. A first number of pixels in at least a second pixel ring either comprising of or surrounding the pixels corresponding to the isolated dot are turned on when the first sum of pixels in the on state is less than the first threshold sum.
摘要翻译：本公开涉及一种用于处理由打印机打印的图像的孤立点的方法和系统。该方法包括检测与图像中的孤立点相对应的像素是否处于接通状态。确定当孤立点中的像素被检测为处于导通状态时围绕与孤立点相对应的像素的第一像素环中处于导通状态的第一和像素总和。将处于导通状态的第一像素环中的第一像素总和与第一阈值和进行比较。当处于导通状态的像素的第一和小于第一阈值和时，至少第二像素环中的第一数量的像素包括或者包围对应于孤立点的像素。

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