-
公开(公告)号：US20070126792A1
公开(公告)日：2007-06-07
申请号：US11295217
申请日：2005-12-06
IPC分类号： B41J2/21
CPC分类号： H04N1/58 , B41J2/2107 , B41J2/2132
摘要： A method for modifying an input digital image having one or more color channels, each color channel having an (x,y) array of image pixel values, to form a modified digital image so that when the modified digital image is used to produce a printed image on an inkjet printer there are reduced ink bleed artifacts.
摘要翻译： 一种用于修改具有一个或多个颜色通道的输入数字图像的方法，每个颜色通道具有图像像素值的（x，y）阵列，以形成修改后的数字图像，使得当修改的数字图像用于产生印刷 喷墨打印机上的图像有减少的墨水渗出伪影。
-
公开(公告)号：US20050254073A1
公开(公告)日：2005-11-17
申请号：US10845037
申请日：2004-05-13
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。
-
公开(公告)号：US20050195438A1
公开(公告)日：2005-09-08
申请号：US10795011
申请日：2004-03-05
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。
-
公开(公告)号：US20070052986A1
公开(公告)日：2007-03-08
申请号：US11210168
申请日：2005-08-23
申请人： Kevin Spaulding , Gustav Braun
发明人： Kevin Spaulding , Gustav 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。
-
公开(公告)号：US20060250624A1
公开(公告)日：2006-11-09
申请号：US11121768
申请日：2005-05-04
申请人： Kevin Spaulding , Gustav Braun , John D'Errico
发明人： Kevin Spaulding , Gustav Braun , John D'Errico
IPC分类号： G03F3/08
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.
-
公开(公告)号：US07265778B2
公开(公告)日：2007-09-04
申请号：US10364486
申请日：2003-02-11
申请人： Gustav Braun
发明人： Gustav Braun
CPC分类号： H04N9/73
摘要： A method of characterizing a display having a plurality of color channels includes the steps of visually characterizing the nonlinearities of the display; determining luminance ratios of the color channels using heterochromatic photometry; determining the chromaticities of the color channels using a neutral identification process; and calculating a colorimetric mixing matrix for the display by combining the luminance ratios of the color channels with the chromaticities of the color channels.
摘要翻译： 表征具有多个颜色通道的显示器的方法包括以下步骤：可视地表征显示器的非线性; 使用异色光度测定来确定颜色通道的亮度比; 使用中性识别过程确定颜色通道的色度; 以及通过将颜色通道的亮度比与颜色通道的色度组合来计算用于显示的比色混合矩阵。
-
7.发明授权公开(公告)号：US07130474B2
公开(公告)日：2006-10-31
申请号：US10259538
申请日：2002-09-27
申请人： Jiebo Luo , Gustav Braun , Christophe Papin
发明人： Jiebo Luo , Gustav Braun , Christophe Papin
IPC分类号： G06K9/36
CPC分类号： G06T3/40
摘要： A method for processing a digital color image for display and transmission includes the steps of (a) resizing the image to a lower display resolution to produce a display-sized image, (b) quantizing the display-sized image to a display palette with an error diffusion process to produce an error diffused image, (c) losslessly compressing the error diffused image to produce a compressed image having a particular file size, (d) comparing the file size to a maximum file size and if less than the maximum file size, transmitting the digital image to the display; (e) if the file size is greater than the maximum file size but less than a another predetermined file size, reducing the error diffusion rate by a predetermined amount in order to reduce the file size; and (f) if the file size is greater than the maximum file size and the predetermined file size, simplifying the resized image by reducing image detail to produce a simplified image and repeating the preceding steps on the simplified image.
摘要翻译： 一种用于处理用于显示和传输的数字彩色图像的方法包括以下步骤：（a）将图像的尺寸调整为较低的显示分辨率以产生显示尺寸的图像，（b）将显示尺寸的图像量化到显示调色板，其中 错误扩散过程以产生误差扩散图像，（c）无损地压缩误差扩散图像以产生具有特定文件大小的压缩图像，（d）将文件大小与最大文件大小进行比较，如果小于最大文件大小 将数字图像发送到显示器; （e）如果文件大小大于最大文件大小但小于另一预定文件大小，则将误差扩散速率降低预定量以减小文件大小; 和（f）如果文件大小大于最大文件大小和预定文件大小，则通过减少图像细节来简化调整大小的图像以产生简化图像，并且在简化图像上重复前述步骤。
-
公开(公告)号：US07239422B2
公开(公告)日：2007-07-03
申请号：US10310009
申请日：2002-12-04
CPC分类号： H04N1/6058 , H04N1/6022
摘要： A method of generating a reduced color gamut boundary for a color output device using three or more colorants, wherein the amount of each colorant is controlled by a colorant control signal vector, including determining a forward device model for the color output device relating the colorant control signal vector to the corresponding output color; determining a complete color gamut boundary for the color output device, comprising a set of color gamut boundary points; and determining a set of candidate colorant control signal vectors for each point in the complete color gamut boundary. The method also includes selecting a preferred colorant control signal vector.
摘要翻译： 一种用于使用三种或更多种着色剂的彩色输出装置产生减小的色域边界的方法，其中每种着色剂的量由着色剂控制信号矢量控制，包括确定颜色输出装置的正向装置模型，其将着色剂控制 信号矢量到相应的输出颜色; 确定所述彩色输出设备的完整色域边界，包括一组色域边界点; 以及为完整色域边界中的每个点确定一组候选着色剂控制信号向量。 该方法还包括选择优选的着色剂控制信号向量。
-
公开(公告)号：US20050089247A1
公开(公告)日：2005-04-28
申请号：US10692536
申请日：2003-10-24
申请人： Gustav Braun , Andrew Gallagher , Raymond Ptucha
发明人： Gustav Braun , Andrew Gallagher , Raymond Ptucha
摘要： A method of processing a digital image having pixels to improve the sharpness of a print generated from the digital image including determining a magnification value representing the magnification of a pixel of the digital image on the print based on the number of input digital image pixels and the output number of digital image pixels; producing a filter in response to the magnification value; using the filter to operate on the digital image to adjust the sharpness of the digital image to produce a sharpened digital image; resizing according to the magnification value the sharpened digital image to produce a resized sharpened digital image which includes the output number of digital image pixels; and producing the print based on the resized sharpened digital image.
摘要翻译： 一种处理具有像素的数字图像的方法，以提高从数字图像生成的打印的清晰度，包括基于输入的数字图像像素的数量确定表示打印上的数字图像的像素的倍率的倍率值，并且 数字图像像素的输出数量; 根据放大值产生滤光片; 使用滤波器对数字图像进行操作以调整数字图像的清晰度以产生锐化的数字图像; 根据倍率值对锐化的数字图像进行调整，以产生包括数字图像像素的输出数量的经调整大小的锐化数字图像; 并根据调整大小的锐化数字图像生成打印。
-
公开(公告)号：US07245395B2
公开(公告)日：2007-07-17
申请号：US10309866
申请日：2002-12-04
CPC分类号： H04N1/60 , B41J2/16523 , B41J2/17593
摘要： A method of selecting a preferred colorant control signal vector for a color output device for reproducing a desired output color, the color output device producing output colors using four or more colorants, wherein the amount of each colorant is controlled by the colorant control signal vector, includes determining a device model for the color output device relating the colorant control signal vector to the corresponding output color; using the device model to determine a set of valid colorant control signal vectors whose corresponding output color substantially matches the desired output color; and selecting the preferred colorant control signal vector from the set of valid colorant control signal vectors using a cost function responsive to one or more cost attribute(s) that vary as a function of the colorant control signal vector.
摘要翻译： 选择用于再现期望输出颜色的颜色输出装置的优选着色剂控制信号矢量的方法，所述彩色输出装置使用四种或更多种着色剂产生输出颜色，其中每种着色剂的量由着色剂控制信号矢量控制， 包括确定用于将着色剂控制信号向量与相应的输出颜色相关联的颜色输出装置的装置模型; 使用所述设备模型来确定一组有效的着色剂控制信号向量，其对应的输出颜色基本上与期望的输出颜色匹配; 以及使用响应于作为着色剂控制信号向量的函数而变化的一个或多个成本属性的成本函数从所述有效着色剂控制信号向量集合中选择优选着色剂控制信号向量。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.037 秒)
