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1. 发明授权

US07826097B2 Asymmetrical digital filters for dot gain adjustments 有权
标题翻译：用于网点增益调整的非对称数字滤波器
公开(公告)号：US07826097B2
公开(公告)日：2010-11-02
申请号：US11754549
申请日：2007-05-29
申请人： Kurt M. Sanger , Gustav J. Braun , Peter D. Burns
发明人： Kurt M. Sanger , Gustav J. Braun , Peter D. Burns
IPC分类号： H04N1/405
CPC分类号： H04N1/6052 , H04N1/40075 , H04N1/407
摘要： A method for adjusting dot-gain for a halftone binary bitmap file comprises inputting a halftone binary bitmap file consisting of binary pixels (400) to an asymmetric digital filter (500). The binary pixels are filtered with the asymmetric digital filter and generates multi-level pixels (506). The multi-level pixel are compared to a preset level (408) and generates a binary pixel output (410). The binary pixel output is collected and forms an adjusted halftone binary bitmap file (270).
摘要翻译：用于调整半色调二进制位图文件的点增益的方法包括将由二进制像素（400）组成的半色调二进制位图文件输入到非对称数字滤波器（500）。用非对称数字滤波器对二进制像素进行滤波，并生成多级像素（506）。将多电平像素与预设电平（408）进行比较，并生成二进制像素输出（410）。收集二进制像素输出并形成调整后的半色调二进制位图文件（270）。

2. 发明申请

US20080297813A1 ASYMMETRICAL DIGITAL FILTERS FOR DOT GAIN ADJUSTMENTS 有权
标题翻译：不对称数字滤波器，用于增益调整
公开(公告)号：US20080297813A1
公开(公告)日：2008-12-04
申请号：US11754549
申请日：2007-05-29
申请人： Kurt M. Sanger , Gustav J. Braun , Peter D. Burns
发明人： Kurt M. Sanger , Gustav J. Braun , Peter D. Burns
IPC分类号： H04N1/52
CPC分类号： H04N1/6052 , H04N1/40075 , H04N1/407
摘要： A method for adjusting dot-gain for a halftone binary bitmap file comprises inputting a halftone binary bitmap file consisting of binary pixels (400) to an asymmetric digital filter (500). The binary pixels are filtered with the asymmetric digital filter and generates multi-level pixels (506). The multi-level pixel are compared to a preset level (408) and generates a binary pixel output (410). The binary pixel output is collected and forms an adjusted halftone binary bitmap file (270).
摘要翻译：用于调整半色调二进制位图文件的点增益的方法包括将由二进制像素（400）组成的半色调二进制位图文件输入到非对称数字滤波器（500）。用非对称数字滤波器对二进制像素进行滤波，并生成多级像素（506）。将多电平像素与预设电平（408）进行比较，并生成二进制像素输出（410）。收集二进制像素输出并形成调整后的半色调二进制位图文件（270）。

3. 发明授权

US07365881B2 Halftone dot-growth technique based on morphological filtering 有权
标题翻译：基于形态滤波的半色调点生长技术
公开(公告)号：US07365881B2
公开(公告)日：2008-04-29
申请号：US10223228
申请日：2002-08-19
申请人： Peter D. Burns , Gustav J. Braun , Kurt M. Sanger
发明人： Peter D. Burns , Gustav J. Braun , Kurt M. Sanger
IPC分类号： G06K15/00
CPC分类号： H04N1/6052 , H04N1/4055 , H04N1/407
摘要： A method for converting an original halftone bitmap image to a color converted halftone bitmap image. A set of asymmetrical morphological filters is provided. The original halftone bitmap image is segmented into blocks and for each block: apply the set of morphological filters to the original halftone bitmap image to produce a set of modified halftone bitmap images; estimate the percent dot area of the original halftone bitmap image and the set of modified halftone bitmap images; a predetermined dot-gain to the percent dot area of the original halftone bitmap image to produce a modified percent dot area; select the modified halftone bitmap image whose percent dot area is closest to the modified percent dot area to produce a block of the color corrected halftone bitmap image; and replace the original halftone bitmap image with the combined blocks of selected modified halftone bitmap image.
摘要翻译：一种用于将原始半色调位图图像转换为颜色转换的半色调位图图像的方法。提供了一组不对称形态滤波器。原始半色调位图图像被分割成块，并且对于每个块：将该组形态滤波器应用于原始半色调位图图像以产生一组修改的半色调位图图像; 估计原始半色调位图图像和修改的半色调位图图像的集合的点面积百分比; 对原始半色调位图图像的百分比点区域的预定点增益，以产生修改的百分比点区域; 选择其百分比点区域最接近修改的百分比点区域的修改的半色调位图图像，以产生色彩校正半色调位图图像的块; 并用所选修改的半色调位图图像的组合块替换原始半色调位图图像。

4. 发明授权

US07116447B2 Halftone dot-growth technique using a dot edge-detection scheme 有权
公开(公告)号：US07116447B2
公开(公告)日：2006-10-03
申请号：US10154546
申请日：2002-05-24
申请人： Gustav J. Braun , Peter D. Burns , Kevin E. Spaulding
发明人： Gustav J. Braun , Peter D. Burns , Kevin E. Spaulding
IPC分类号： H04N1/405 , H04N1/52 , H04N1/409 , H04N1/58 , G06T5/00
CPC分类号： H04N1/4055
摘要： A method for color correcting an original halftone bitmap image by a predefined color correction function to produce a color corrected halftone bitmap image comprising: providing an original halftone bitmap image; estimating the dot area percentage of the original halftone bitmap image in a set of sub-image blocks; calculating an aim dot area percentage, based on a predefined color correction function, for each sub-image block in the original halftone bitmap image, calculating the number of halftone bitmap image pixels to convert to on or off states to produce a modified original halftone bitmap image that has the aim dot area percentage where said value is designated by N, for each sub-image block in the original halftone bitmap image, and converting N pixels in the original halftone bitmap image to either on or off states depending on whether the aim dot area percentage is greater or less than the dot area percentage of the original halftone bitmap image respectively, for each sub-image block in the original halftone bitmap image.

5. 发明授权

US07583406B2 Color transforms for concave device gamuts 有权
标题翻译：凹面设备色域的颜色变换
公开(公告)号：US07583406B2
公开(公告)日：2009-09-01
申请号：US11210168
申请日：2005-08-23
申请人： Kevin E. Spaulding , Gustav J. Braun
发明人： Kevin E. Spaulding , Gustav J. Braun
IPC分类号： H04N1/60
CPC分类号： H04N1/6058
摘要： Method for building color transforms for color imaging devices having concave color gamut regions, including forming a device model that relates device control signals for a color imaging device to corresponding device-independent color values in a device-independent color space; forming a device color gamut representing the set of colors in the device-independent color space that are producible by the color imaging device; and forming a convex color gamut by fitting a convex hull to the device color gamut. The method further includes forming an expanded device model that relates device control signals for the color imaging device to expanded device-independent color values in the device-independent color space, such that the expanded device-independent color values fill the convex color gamut; and building a color transform that relates input device-independent color values to corresponding device control signals for the color imaging device using the expanded device model.
摘要翻译：一种用于构建具有凹色域区域的彩色成像装置的彩色变换的方法，包括在与装置无关的色彩空间中形成将彩色成像装置的装置控制信号与相应装置无关的颜色值相关联的装置模型; 形成表示由所述彩色成像装置可生产的与装置无关的颜色空间中的颜色集合的装置色域; 以及通过将凸包装配到装置色域来形成凸色域。该方法进一步包括形成扩展装置模型，该装置模型将彩色成像装置的装置控制信号与装置无关色彩空间中扩大的与装置无关的颜色值相关联，使得扩大装置无关颜色值填充凸色域; 以及使用扩展的设备模型构建将输入设备无关颜色值与用于彩色成像设备的相应设备控制信号相关联的颜色变换。

6. 发明授权

US07369276B2 Multi-level halftoning providing improved texture uniformity 失效
标题翻译：多级半色调提供改善的纹理均匀性
公开(公告)号：US07369276B2
公开(公告)日：2008-05-06
申请号：US10795011
申请日：2004-03-05
申请人： Douglas W. Couwenhoven , Kevin E. Spaulding , Gustav J. Braun
发明人： Douglas W. Couwenhoven , Kevin E. Spaulding , Gustav J. Braun
IPC分类号： G06K15/00 , H04N1/405
CPC分类号： H04N1/4052
摘要： A method for multi-level halftoning an input digital image to form an output digital image which includes a multi-level error diffusion halftoning process incorporating periodic dither signals whose amplitudes are adjusted as a function of the error-diffusion texture characteristics.
摘要翻译：一种用于多级对输入数字图像进行半色调以形成输出数字图像的方法，该输出数字图像包括多级误差扩散半色调处理，其包括作为误差扩散纹理特征的函数调整幅度的周期性抖动信号。

7. 发明授权

US08427722B2 Color transform insensitive to process variability 有权
标题翻译：颜色变换对工艺变化不敏感
公开(公告)号：US08427722B2
公开(公告)日：2013-04-23
申请号：US12793924
申请日：2010-06-04
申请人： Paula J. Alessi , John R. D'Errico , Gustav J. Braun , Donald M. Reiman , David W. Bishop
发明人： Paula J. Alessi , John R. D'Errico , Gustav J. Braun , Donald M. Reiman , David W. Bishop
IPC分类号： G03F3/08 , H04N1/60 , G06K9/00
CPC分类号： H04N1/46 , H04N1/60
摘要： A method for determining a blended color transform for use in producing printed colors on a color printer having at least four device color channels, comprising: forming first and second color transforms, wherein the first color transform produces printed colors that have a reduced sensitivity to color printer process variations in at least a first region of color space that includes a near-neutral color region, and wherein the second color transform produces printed colors that have a reduced image noise visibility in at least a second region of color space; defining a blending function which computes weighting values for the first and second color transforms as a function of input color values; and using a processor to determine the blended color transform by blending the first color transform and the second color transform, responsive to the blending function.
摘要翻译：一种用于确定用于在具有至少四个设备颜色通道的彩色打印机上制作印刷颜色的混合色彩变换的方法，包括：形成第一和第二颜色变换，其中所述第一颜色变换产生具有降低的颜色敏感度的打印色彩包括近中性色彩区域的至少第一颜色空间区域中的打印机处理变化，并且其中所述第二颜色变换产生在至少第二颜色空间区域中具有降低的图像噪声可视性的打印颜色; 定义混合函数，其计算作为输入颜色值的函数的第一和第二颜色变换的加权值; 以及响应于所述混合功能，使用处理器来通过混合所述第一颜色变换和所述第二颜色变换来确定所述混合颜色变换。

8. 发明申请

US20110299143A1 COLOR TRANSFORM INSENSITIVE TO PROCESS VARIABILITY 有权
标题翻译：颜色变换对过程变异的敏感性
公开(公告)号：US20110299143A1
公开(公告)日：2011-12-08
申请号：US12793924
申请日：2010-06-04
申请人： Paula J. Alessi , John R. D'Errico , Gustav J. Braun , Donald M. Reiman , David W. Bishop
发明人： Paula J. Alessi , John R. D'Errico , Gustav J. Braun , Donald M. Reiman , David W. Bishop
IPC分类号： G03F3/08 , H04N1/46
CPC分类号： H04N1/46 , H04N1/60
摘要： A method for determining a blended color transform for use in producing printed colors on a color printer having at least four device color channels, comprising: forming first and second color transforms, wherein the first color transform produces printed colors that have a reduced sensitivity to color printer process variations in at least a first region of color space that includes a near-neutral color region, and wherein the second color transform produces printed colors that have a reduced image noise visibility in at least a second region of color space; defining a blending function which computes weighting values for the first and second color transforms as a function of input color values; and using a processor to determine the blended color transform by blending the first color transform and the second color transform, responsive to the blending function.
摘要翻译：一种用于确定用于在具有至少四个设备颜色通道的彩色打印机上制作印刷颜色的混合色彩变换的方法，包括：形成第一和第二颜色变换，其中所述第一颜色变换产生具有降低的颜色敏感度的打印色彩包括近中性色彩区域的至少第一颜色空间区域中的打印机处理变化，并且其中所述第二颜色变换产生在至少第二颜色空间区域中具有降低的图像噪声可视性的打印颜色; 定义混合函数，其计算作为输入颜色值的函数的第一和第二颜色变换的加权值; 以及响应于所述混合功能，使用处理器来通过混合所述第一颜色变换和所述第二颜色变换来确定所述混合颜色变换。

9. 发明授权

US07535596B2 Colorant control values for color printing devices 失效
标题翻译：彩色打印设备的着色剂控制值
公开(公告)号：US07535596B2
公开(公告)日：2009-05-19
申请号：US11121768
申请日：2005-05-04
申请人： Kevin E. Spaulding , Gustav J. Braun , John R. D'Errico
发明人： Kevin E. Spaulding , Gustav J. Braun , John R. D'Errico
IPC分类号： G03F3/08 , G06K15/00
CPC分类号： H04N1/6022
摘要： A method for determining colorant control values for a color imaging device having four or more colorants is disclosed. The method includes defining a color mapping for a set of paths through a three-channel color space, defining a color mapping function for the three-channel color space relating the three-channel color space values to colorant control values for the four or more colorants of the color imaging device by interpolating between the color mapping defined for the set of paths, forming a forward three-channel color model relating the three-channel color space values to device-independent color values, inverting the forward three-channel color model to determine an inverse three-channel color model relating the device-independent color values to the three-channel color space values, and combining the inverse three-channel color model and the color mapping function to determine an inverse device color model.
摘要翻译：公开了一种用于确定具有四种或更多种着色剂的彩色成像装置的着色剂控制值的方法。该方法包括通过三通道颜色空间定义一组路径的颜色映射，为三通道颜色空间值与四个或更多个着色剂的着色剂控制值定义三通道颜色空间的颜色映射功能通过在为该组路径定义的颜色映射之间进行内插，形成将三通道颜色空间值与设备无关的颜色值相关联的前向三通道颜色模型，将前向三通道颜色模型反转到确定将与设备无关的颜色值与三通道色彩空间值相关联的反向三通道颜色模型，并组合逆三通道颜色模型和颜色映射功能以确定逆设备颜色模型。

10. 发明授权

US07365879B2 Determining sets of n-dimensional colorant control signals 有权
标题翻译：确定n维着色剂控制信号的集合
公开(公告)号：US07365879B2
公开(公告)日：2008-04-29
申请号：US10845037
申请日：2004-05-13
申请人： Gustav J. Braun , John R. D'Errico , Kevin E. Spaulding , Douglas W. Couwenhoven
发明人： Gustav J. Braun , John R. D'Errico , Kevin E. Spaulding , Douglas W. Couwenhoven
IPC分类号： H04N1/60 , G09G5/02
CPC分类号： H04N1/60 , H04N1/6022
摘要： A method for determining a set of n-dimensional colorant control signals that map to a point P in an m-dimensional color space where n>m, including determining a forward device model that maps n-dimensional colorant control signals to m-dimensional color space signals; determining a set of n-dimensional colorant control signal simplexes that span a domain of the forward device model; and determining a set of range space simplexes in the m-dimensional color space corresponding to the set of n-dimensional colorant control space signal simplexes by mapping the vertices of the n-dimensional colorant control signal simplexes into the m-dimensional color space using the forward device model. The method also includes specifying a point P in the m-dimensional color space; and determining the set of n-dimensional colorant control signals that map to the point P in the m-dimensional color space, by performing m sequential slicing processes through the set of range space simplexes.
摘要翻译：一种用于确定映射到m维色空间中的点P的n维着色剂控制信号的集合的方法，包括确定将n维着色剂控制信号映射到m维颜色的正向设备模型空间信号; 确定跨越前向设备模型的域的一组n维着色剂控制信号单体; 以及通过将所述n维着色剂控制信号单面的顶点通过将所述n维着色剂控制信号单面的顶点映射到所述m维色彩空间中来确定与所述一组n维着色剂控制空间信号单面相对应的m维色彩空间中的一组范围空间单性正向设备型号。该方法还包括在m维颜色空间中指定点P; 以及通过在所述一维范围空间单位中执行m次连续切片处理，确定映射到m维色彩空间中的点P的n维着色剂控制信号的集合。

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