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11. 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。

12. 发明申请

US20140049799A1 SYSTEMS AND METHODS FOR DYNAMIC SHARPNESS CONTROL IN SYSTEM USING BINARY TO CONTINUOUS TONE CONVERSION 有权
标题翻译：使用二进制连续色调转换的系统中动态锐度控制的系统和方法
公开(公告)号：US20140049799A1
公开(公告)日：2014-02-20
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： 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。

13. 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。

14. 发明申请

US20070139668A1 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：US20070139668A1
公开(公告)日：2007-06-21
申请号：US11300835
申请日：2005-12-15
申请人： Zhenhuan Wen , Francis Tse , Xing Li
发明人： Zhenhuan Wen , Francis Tse , Xing Li
IPC分类号： G06K15/02
CPC分类号： G06K15/02 , G06T3/403 , H04N1/40068
摘要： A binary resolution conversion apparatus and method is provided. The apparatus comprising a data processing module comprising 1-bit data inputs and a tag data input, the data associated with an image, wherein the apparatus reduces the resolution of the image.
摘要翻译：提供二进制分辨率转换装置和方法。该装置包括数据处理模块，该数据处理模块包括1位数据输入和标签数据输入，与图像相关联的数据，其中该装置降低图像的分辨率。

15. 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。

16. 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。

17. 发明授权

US06775029B1 Method for efficient calibration of printing devices 有权
标题翻译：打印设备有效校准的方法
公开(公告)号：US06775029B1
公开(公告)日：2004-08-10
申请号：US09699872
申请日：2000-10-30
申请人： Zhenhuan Wen , Shen-ge Wang , Fritz F. Ebner
发明人： Zhenhuan Wen , Shen-ge Wang , Fritz F. Ebner
IPC分类号： G06F1500
CPC分类号： H04N1/00015 , H04N1/00002 , H04N1/00031 , H04N1/00045 , H04N1/00053 , H04N1/00063 , H04N1/00087 , H04N1/4078
摘要： A method for characterizing a printing device response for a halftone screen includes (a) generating a plurality of test patches, each test patch comprising a dot pattern having less than three different base patterns for the halftone screen; (b) measuring the luminance of selected ones of the test patches; (c) plotting the luminance measurements to provide a set of calibrated points on a printer calibration curve; and (d) generating the printer calibration curve between adjacent calibrated points using an equation establishing a relationship between ink area coverage and reflectance of the image.
摘要翻译：用于表征半色调屏幕的打印装置响应的方法包括（a）产生多个测试贴片，每个测试贴片包括具有少于三个不同基底图案的点阵图案用于半色调屏幕; （b）测量所选择的所述测试片的亮度; （c）绘制亮度测量值以在打印机校准曲线上提供一组校准点; 和（d）使用建立墨水面积覆盖率和图像反射率之间的关系的方程来产生相邻校准点之间的打印机校准曲线。

18. 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。

19. 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。

20. 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。

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