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1. 发明授权

US08154765B2 Methods and algorithms for adjusting gloss levels in printers 有权
标题翻译：调整打印机光泽度的方法和算法
公开(公告)号：US08154765B2
公开(公告)日：2012-04-10
申请号：US12421745
申请日：2009-04-10
申请人： Connie Purdum , Lalit Keshay Mestha , Martin Maltz , Frederick J. Ramsey , Alvaro Enrique Gil
发明人： Connie Purdum , Lalit Keshay Mestha , Martin Maltz , Frederick J. Ramsey , Alvaro Enrique Gil
IPC分类号： H04N1/60 , G03G21/00
CPC分类号： H04N1/407 , H04N1/00002 , H04N1/00015 , H04N1/00023 , H04N1/00031 , H04N1/00045 , H04N1/00068 , H04N1/00087 , H04N1/0009 , H04N1/00092 , H04N1/00726 , H04N1/2307 , H04N1/2323 , H04N1/233 , H04N1/2338
摘要： A printer configured to adjust gloss appearance of images includes a marking engine configured to render an image on a substrate from input image data; and a controller configured to: (i) correlate a minimum luminance value to be used by the printer based on a gloss selection; (ii) determine a black point compensation function based on the correlated minimum luminance value; and (iii) adjust luminance values for input image data using the determined black point compensation function. A method to adjust gloss appearance of images is also provided.
摘要翻译：配置为调整图像的光泽外观的打印机包括：配置成从输入图像数据在基板上渲染图像的标记引擎; 以及控制器，其被配置为：（i）基于光泽选择来关联所述打印机使用的最小亮度值; （ii）基于相关的最小亮度值确定黑点补偿功能; 和（iii）使用确定的黑点补偿功能来调整输入图像数据的亮度值。还提供了一种调整图像光泽度外观的方法。

2. 发明申请

US20060023258A1 Method for minimizing boundary defects using halftone classes with matched harmonics 审中-公开
标题翻译：使用具有匹配谐波的半色调类最小化边界缺陷的方法
公开(公告)号：US20060023258A1
公开(公告)日：2006-02-02
申请号：US10909627
申请日：2004-08-02
申请人： Robert Loce , Charles Hains , Beilei Xu , Connie Purdum , Xiaoxue Cheng
发明人： Robert Loce , Charles Hains , Beilei Xu , Connie Purdum , Xiaoxue Cheng
IPC分类号： H04N1/405
CPC分类号： H04N1/4058
摘要： A method for minimizing boundary effects when switching between halftone screens on a scanline, includes selecting a first halftone screen having a first fundamental frequency and a first angle for printing pixels of a first type; and selecting a second halftone screen having a second fundamental frequency and a second angle for printing pixels of a second type, wherein the second frequency and second angle are harmonically matched to the first frequency and first angle, wherein at least one pixel of the second type is adjacent to a pixel of the first type. In one embodiment, the first and second frequencies are selected to have a substantially zero frequency beat. In another, the first and second frequencies are selected to have a substantially high frequency beat.
摘要翻译：一种用于在扫描线上的半色调屏幕之间切换时最小化边界效应的方法，包括选择具有第一基频和第一角度的第一半色调屏幕，用于打印第一类型的像素; 以及选择具有第二基频和第二角度的第二半色调屏幕，用于打印第二类型的像素，其中所述第二频率和第二角度与所述第一频率和第一角度谐波匹配，其中所述第二类型的至少一个像素与第一类型的像素相邻。在一个实施例中，第一和第二频率被选择为具有基本为零的频率节拍。在另一个中，选择第一和第二频率具有基本上高的频率节拍。

3. 发明申请

US20100259794A1 METHODS AND ALGORITHMS FOR ADJUSTING GLOSS LEVELS IN PRINTERS 有权
标题翻译：用于调整打印机中GLOSS级别的方法和算法
公开(公告)号：US20100259794A1
公开(公告)日：2010-10-14
申请号：US12421745
申请日：2009-04-10
申请人： Connie PURDUM , Lalit Keshav MESTHA , Martin MALTZ , Frederick J. RAMSEY , Alvaro Enrique GIL
发明人： Connie PURDUM , Lalit Keshav MESTHA , Martin MALTZ , Frederick J. RAMSEY , Alvaro Enrique GIL
IPC分类号： H04N1/405
CPC分类号： H04N1/407 , H04N1/00002 , H04N1/00015 , H04N1/00023 , H04N1/00031 , H04N1/00045 , H04N1/00068 , H04N1/00087 , H04N1/0009 , H04N1/00092 , H04N1/00726 , H04N1/2307 , H04N1/2323 , H04N1/233 , H04N1/2338
摘要： A printer configured to adjust gloss appearance of images includes a marking engine configured to render an image on a substrate from input image data; and a controller configured to: (i) correlate a minimum luminance value to be used by the printer based on a gloss selection; (ii) determine a black point compensation function based on the correlated minimum luminance value; and (iii) adjust luminance values for input image data using the determined black point compensation function. A method to adjust gloss appearance of images is also provided.
摘要翻译：配置为调整图像的光泽外观的打印机包括：配置成从输入图像数据在基板上渲染图像的标记引擎; 以及控制器，其被配置为：（i）基于光泽选择来关联所述打印机使用的最小亮度值; （ii）基于相关的最小亮度值确定黑点补偿功能; 和（iii）使用确定的黑点补偿功能来调整输入图像数据的亮度值。还提供了一种调整图像光泽度外观的方法。

4. 发明申请

US20060087694A1 Tinted edge enhancement using harmonic halftones for the boundary pixels 有权
标题翻译：带边缘增强使用谐波半色调为边界像素
公开(公告)号：US20060087694A1
公开(公告)日：2006-04-27
申请号：US10973725
申请日：2004-10-26
申请人： Connie Purdum , Robert Loce , Beilei Xu , David Lieberman , Mark Gwaltney , Jon McElvain , Charles Hains
发明人： Connie Purdum , Robert Loce , Beilei Xu , David Lieberman , Mark Gwaltney , Jon McElvain , Charles Hains
IPC分类号： H04N1/405
CPC分类号： H04N1/4092 , H04N1/4058
摘要： Disclosed herein is an image processing method for producing enhanced halftone edges, particularly suited to those edges which only lie upon the background as apposed to those edges which abut other halftone screens. It utilizes a step of defining border pixels and a step of halftoning those border pixels in a different manner than the halftoning applied to the interior region of the tint or image segment. The preferred halftone for the border pixels will be related to the interior halftone by some number of common spatial frequency harmonics. Examples of common-harmonic screening for an edge include, but are not limited to: (a) same screen with different tone reproduction characteristics (boosted edge values); (b) same screen angles and frequencies with a different spot function, possibly phase shifted; (c) a dot screen whose frequency vectors can be generated by the frequency vectors of the interior screen; (d) a line screen whose frequency vectors can be generated by the frequency vectors of the interior screen. This generation process is directed to ensuring that the two screens will be “harmonically matched” where at least one of the fundamental frequency vectors and harmonics of the first screen will equal at least one of the fundamental frequency vectors and harmonics of the second screen.
摘要翻译：本文公开了一种用于生产增强的半色调边缘的图像处理方法，特别适合于仅靠在与其它半色调屏幕相邻的那些边缘上的背景的那些边缘。它利用定义边框像素的步骤和以与应用于色调或图像片段的内部区域的半色调不同的方式对这些边界像素进行半色调的步骤。边框像素的优选半色调将通过一些数量的共同空间频率谐波与内部半色调相关。用于边缘的共谐波筛选的示例包括但不限于：（a）具有不同色调再现特性（增强边缘值）的相同屏幕; （b）具有不同光点功能的相同屏幕角度和频率，可能相移; （c）可以通过内部画面的频率矢量生成频率矢量的点画面; （d）可以通过内部画面的频率矢量生成其频率矢量的行画面。该生成处理旨在确保两个屏幕将被“谐波匹配”，其中基本频率矢量和第一屏幕的谐波中的至少一个将等于第二屏幕的基本频率矢量和谐波中的至少一个。

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