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1. 发明授权

US07310168B2 Method and apparatus for controlling a spot function for digital halftoning 有权
标题翻译：用于控制数字半色调的点功能的方法和装置
公开(公告)号：US07310168B2
公开(公告)日：2007-12-18
申请号：US09898254
申请日：2001-07-03
申请人： Jennifer Quirin Trelewicz , Danielle K. Dittrich , Yue Qiao , Gerhard Robert Thompson , Chai Wah Wu
发明人： Jennifer Quirin Trelewicz , Danielle K. Dittrich , Yue Qiao , Gerhard Robert Thompson , Chai Wah Wu
IPC分类号： H04N1/405 , G06K15/00
CPC分类号： G06K15/02 , H04N1/4055
摘要： A digital halftoning technique for controlling a spot function is disclosed. A method for generating a spot for use in halftoning according to the present invention includes defining a spot function that combines two functions selected to provide a predetermined spot shape for use in a halftone cell and scaling the spot function using a scaling function that varies according to a value of a first and second spot function ordinate. Asymmetric modulation of spot functions is used to control the touching of adjacent spots, and to change the shape of the spots with the gray region.
摘要翻译：公开了一种用于控制光点功能的数字半色调技术。根据本发明的用于产生用于半色调的斑点的方法包括定义点功能，其组合选择的两个功能以提供用于半色调单元的预定斑点形状，并且使用根据第一和第二点函数纵坐标的值。点函数的不对称调制用于控制相邻斑点的触摸，并改变斑点与灰色区域的形状。

2. 发明授权

US07835034B1 Halftone method and apparatus that provides a line screen frequency of N/2 for a printer resolution of N dots per inch without negative print effects 有权
标题翻译：半色调方法和设备，提供N / 2的线屏幕频率，用于打印机分辨率为N点/英寸，无负面打印效果
公开(公告)号：US07835034B1
公开(公告)日：2010-11-16
申请号：US09571968
申请日：2000-05-16
申请人： Joan LaVerne Mitchell , Timothy James Trenary , Danielle K. Dittrich , Yue Qiao
发明人： Joan LaVerne Mitchell , Timothy James Trenary , Danielle K. Dittrich , Yue Qiao
IPC分类号： G06K15/00
CPC分类号： H04N1/52
摘要： A halftone method and apparatus provides a line screen frequency of N/2 for a printer resolution of N without negative print effects. A 300 lines per inch halftone screen for a 600 dpi printer may thus be created by alternating white and saturated colored lines when half of a given color component's pels are on. Empirical rules are used to create the screens based on how that printer creates consistent and reliable levels for each color component. These rules allow intermediate intensity values between white and full-on at each pel. Since the halftoning is done in the hardware just before printing, the print direction relative to the threshold matrix is known. No rotation capability is needed in the hardware. If an image needs to be rotated, it can be done previously to being sent to the hardware. Furthermore, because a pair of pels are turned on for the lightest values (or possibly with a one level difference between the first and second dots in the pair), the electronics are stressed less. Moreover, the drive will be at a lower frequency than the first dot in the traditional halftone cell, which remains isolated for many levels.
摘要翻译：半色调方法和装置为N的打印机分辨率提供N / 2的线屏幕频率，而不产生负打印效果。因此，当一个给定的颜色分量的像素的一半被打开时，可以通过交替的白色和饱和的彩色线来创建用于600dpi打印机的300线/英寸半色调屏幕。经验规则用于根据打印机为每个颜色组件创建一致和可靠的级别创建屏幕。这些规则允许在每个像素之间的白色和全开之间的中间强度值。由于半色调在打印之前的硬件中完成，所以相对于阈值矩阵的打印方向是已知的。在硬件中不需要旋转能力。如果需要旋转图像，则可以先将图像发送到硬件。此外，由于一对像素被打开以获得最轻的值（或者可能具有一对中的第一和第二点之间的一个电平差），所以电子元件的应力较小。此外，驱动器将处于比传统半色调电池中的第一个点更低的频率，其保持隔离许多级别。

3. 发明授权

US08520253B2 Method and system for scaling with dot gain control 有权
标题翻译：使用点增益控制进行缩放的方法和系统
公开(公告)号：US08520253B2
公开(公告)日：2013-08-27
申请号：US11085161
申请日：2005-03-22
申请人： Larry M. Ernst , Hong Li , Yue Qiao , Mikel John Stanich , Chai Wah Wu
发明人： Larry M. Ernst , Hong Li , Yue Qiao , Mikel John Stanich , Chai Wah Wu
IPC分类号： H04N1/60
CPC分类号： G06K15/02
摘要： A method (and system) for changing spatial resolution of an image includes systematically creating an image scaling look-up table including at least one pixel replacement pattern and applying a scaling algorithm to modify the image using the image scaling look-up table, thereby allowing a user to scale binary images with easy control of dot gain, output bit depth and other printer parameters.
摘要翻译：用于改变图像的空间分辨率的方法（和系统）包括系统地创建包括至少一个像素替换图案的图像缩放查找表，并且使用缩放算法来使用图像缩放查找表修改图像，从而允许用户可以轻松控制点增益，输出位深度和其他打印机参数来缩放二进制图像。

4. 发明授权

US09179045B2 Gamut mapping based on numerical and perceptual models 有权
标题翻译：基于数字和感知模型的色域映射
公开(公告)号：US09179045B2
公开(公告)日：2015-11-03
申请号：US12253543
申请日：2008-10-17
申请人： Yue Qiao , Joan L. Mitchell
发明人： Yue Qiao , Joan L. Mitchell
IPC分类号： H04N1/60
CPC分类号： H04N1/6058
摘要： Methods and systems herein provide for color conversion. Such color conversion includes gamut mapping by determining a color gamut of an imaging device and receiving color data having color values external to the color gamut of the imaging device. The gamut mapping proceeds by determining a color region external to the color gamut and mapping the color values within the color region to the color gamut. Thereafter, the area of the color region is increased and the color values within the increased color region are mapped to the color gamut.
摘要翻译：本文的方法和系统提供了颜色转换。这种颜色转换包括通过确定成像装置的色域并接收具有彩色值在成像装置的色域外部的色彩数据的色域映射。色域映射通过确定色域外部的颜色区域并将颜色区域内的颜色值映射到色域来进行。此后，颜色区域的面积增加，并且增加的颜色区域内的颜色值被映射到色域。

5. 发明申请

US20100157330A1 OPTIMIZED COLOR CONVERSION 审中-公开
标题翻译：优化颜色转换
公开(公告)号：US20100157330A1
公开(公告)日：2010-06-24
申请号：US12338829
申请日：2008-12-18
申请人： Yue Qiao
发明人： Yue Qiao
IPC分类号： H04N1/60
CPC分类号： H04N1/603
摘要： Methods and systems herein provide for optimized color conversion. Such color conversion includes identifying color regions in the image data and identifying portions of the color regions that overlap. The color conversion also includes converting color values in the color regions to the color space of the output imaging device based on a plurality of numerical models. The color conversion further includes processing the overlapping portions of the color regions to remove abrupt transitions between the overlapping portions of the color regions. The numerical models may be generated based on human perception and a source of printer errors.
摘要翻译：本文的方法和系统提供优化的颜色转换。这种颜色转换包括识别图像数据中的颜色区域和识别重叠的颜色区域的部分。颜色转换还包括基于多个数值模型将颜色区域中的颜色值转换为输出成像装置的颜色空间。颜色转换还包括处理颜色区域的重叠部分以去除颜色区域的重叠部分之间的突然过渡。数字模型可以基于人的感知和打印机错误的来源生成。

6. 发明申请

US20100123910A1 COLOR CONVERSIONS IN THE REAL DOMAIN 有权
标题翻译：真正的颜色转换
公开(公告)号：US20100123910A1
公开(公告)日：2010-05-20
申请号：US12271187
申请日：2008-11-14
申请人： Joan L. Mitchell , Yue Qiao , Nenad Rijavec
发明人： Joan L. Mitchell , Yue Qiao , Nenad Rijavec
IPC分类号： H04N1/60 , G06K9/00
CPC分类号： H04N1/6058
摘要： Methods and systems herein provide for color conversion in the real domain from an input color space to an output color space using a color conversion table that includes color values defined in the output color space corresponding to color values in the input color space, a table of scaling factors, and a conversion engine operable to group the real domain image data into blocks of pixels. The conversion engine, for each block of pixels, converts a color value in the block of pixels from the input color space to the output color space according to the color conversion table, computes differences between the color value and color values of pixels in the block, scales the computed differences according to the table of scaling factors, and adds the scaled differences to the converted color values to convert the pixel color values to the output color space.
摘要翻译：这里的方法和系统使用包括与输入颜色空间中的颜色值相对应的输出颜色空间中定义的颜色值的颜色转换表来提供从输入颜色空间到输出颜色空间的真实域中的颜色转换，缩放因子和可操作以将真实域图像数据分组成像素块的转换引擎。对于每个像素块，转换引擎根据颜色转换表将像素块中的颜色值从输入颜色空间转换为输出颜色空间，计算块中像素的颜色值和颜色值之间的差异，根据缩放因子表对计算出的差异进行缩放，并将缩放的差值与转换的颜色值相加，以将像素颜色值转换为输出颜色空间。

7. 发明授权

US07675648B2 Method and apparatus for converting a color representation of an image to a grayscale representation 有权
标题翻译：用于将图像的颜色表示转换为灰度表示的方法和装置
公开(公告)号：US07675648B2
公开(公告)日：2010-03-09
申请号：US11472574
申请日：2006-06-22
申请人： Larry M. Ernst , Yue Qiao
发明人： Larry M. Ernst , Yue Qiao
IPC分类号： G03F3/08
CPC分类号： H04N1/40012
摘要： A method and apparatus for converting a color representation of an image to a grayscale representation are disclosed. For a color image, a location of each color within a device-independent color space is initially determined. Then, a color difference of each color is determined by applying an appropriate perceptual-based color difference model according to its determined location within the device-independent color space. Next, the determined color difference of each color is normalized under a predetermined range. The normalized color differences are mapped to an output range of an output device.
摘要翻译：公开了一种用于将图像的颜色表示转换为灰度表示的方法和装置。对于彩色图像，最初确定与设备无关的颜色空间内的每种颜色的位置。然后，通过在与设备无关的颜色空间内根据其确定的位置应用适当的基于感知的色差模型来确定每种颜色的色差。接下来，将所确定的每种颜色的色差在预定范围内归一化。归一化色差映射到输出设备的输出范围。

8. 发明授权

US07580166B2 Converting image data in an input color space to an output color space in a transform domain 有权
标题翻译：将输入颜色空间中的图像数据转换为变换域中的输出颜色空间
公开(公告)号：US07580166B2
公开(公告)日：2009-08-25
申请号：US11469822
申请日：2006-09-01
申请人： Yue Qiao , Nenad Rijavec , Joan La Verne Mitchell
发明人： Yue Qiao , Nenad Rijavec , Joan La Verne Mitchell
IPC分类号： G03F3/08 , G06K9/36 , G06K9/46 , H04N1/60
CPC分类号： H04N1/64 , G06T11/001
摘要： Provided are a method, system, and article of manufacture for converting image data in an input color space to an output color space in a transform domain. An input block of coefficients in an input color space is generated, wherein the input block includes a first type coefficient and a plurality of second type coefficients. The first type coefficient in the input block is converted to an output value in an output color space. The output value is used to determine a scaling factor for the second type coefficients. The scaling factor is applied to the second type coefficients to determine second type coefficients in the output color space. A component output block of coefficients in the output color space is formed from the output value for the first type coefficient and the determined second type coefficients in the output color space.
摘要翻译：提供了一种用于将输入颜色空间中的图像数据转换为变换域中的输出颜色空间的方法，系统和制品。产生输入颜色空间中的系数的输入块，其中输入块包括第一类型系数和多个第二类型系数。输入块中的第一类型系数被转换为输出色空间中的输出值。输出值用于确定第二类型系数的缩放因子。将缩放因子应用于第二类型系数以确定输出颜色空间中的第二类型系数。输出颜色空间中的系数的分量输出块由第一类型系数的输出值和输出颜色空间中确定的第二类型系数形成。

9. 发明申请

US20090168082A1 METHODS AND APPARATUS FOR AN OUTPUT LOOKUP TABLE DESIGN AND DATA ACCESS LAYER IN COLOR MANAGEMENT RESOURCE ENGINES 审中-公开
标题翻译：颜色管理资源引擎中的输出查询表设计和数据访问层的方法和装置
公开(公告)号：US20090168082A1
公开(公告)日：2009-07-02
申请号：US11966170
申请日：2007-12-28
申请人： Jean M. Aschenbrenner , Yue Qiao
发明人： Jean M. Aschenbrenner , Yue Qiao
IPC分类号： H04N1/60
CPC分类号： H04N1/603
摘要： Methods and apparatus for saving and re-using lookup tables (LUTs) used in generating color data objects in a presentation/printing system. A data object is generated by a device or application having an associated input ICC profile and is transferred to a presentation device having one or more associated output ICC profiles. The data object is converted from its input color space to a color space of the presentation device based on calculated LUTs. Once calculated, the LUTs are saved in a memory of the presentation device to be re-used for processing of a subsequent data object. The saved LUTs are indexed using the object ID (OID) of the ICC output profile used to calculate the LUT. A subsequent data object may specify use of the same ICC output profile such that the previously calculated LUT may be retrieve and re-used to obviate the calculation burden to recalculate the LUT.
摘要翻译：用于在呈现/打印系统中生成彩色数据对象中使用的查找表（LUT）的保存和重新使用的方法和装置。数据对象由具有关联的输入ICC简档的设备或应用程序生成，并被传送到具有一个或多个相关联的输出ICC简档的呈现设备。基于计算的LUT，数据对象从其输入颜色空间转换为呈现设备的颜色空间。一旦计算出来，LUT被保存在呈现装置的存储器中，以被再次用于后续数据对象的处理。使用用于计算LUT的ICC输出配置文件的对象ID（OID）对保存的LUT进行索引。随后的数据对象可以指定使用相同的ICC输出配置文件，使得先前计算的LUT可以被检索和重新使用以消除计算负担以重新计算LUT。

10. 发明授权

US07436546B2 Method and apparatus for color management 有权
标题翻译：颜色管理方法和装置
公开(公告)号：US07436546B2
公开(公告)日：2008-10-14
申请号：US11077687
申请日：2005-03-11
申请人： Jean Margaret Aschenbrenner , Reinhard Heinrich Hohensee , Yue Qiao , Nenad Rijavec , David Earl Stone
发明人： Jean Margaret Aschenbrenner , Reinhard Heinrich Hohensee , Yue Qiao , Nenad Rijavec , David Earl Stone
IPC分类号： G06F3/12 , G06F3/00 , G06F15/00 , G06K1/00 , G06K15/00 , H04N1/60 , G03F3/08 , G03F3/10
CPC分类号： G06K15/02 , G06K2215/0094 , H04N1/603
摘要： The Management of color presented at end point devices such as a display or printer is based on the implementation of a Color Management Resource (CR). A CMR is an architected resource stored accessibly to a print server or other processor that is used to carry all of the color management information required to render a print file, document, page, or data object.
摘要翻译：终端设备（如显示器或打印机）上显示的颜色管理基于颜色管理资源（CR）的实现。 CMR是存储在打印服务器或其他处理器中的架构资源，其用于承载呈现打印文件，文档，页面或数据对象所需的所有颜色管理信息。

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