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公开(公告)号：US06454389B1
公开(公告)日：2002-09-24
申请号：US09658800
申请日：2000-09-11
IPC分类号： B41J2145
CPC分类号： G06K15/107
摘要： A method of multipass inkjet printing of images in response to digital images having code values includes providing an inkjet printer capable of printing at least two ink drops at each printing location during different passes, including a printhead which can select at least two different ink drop sizes, and selecting a number of passes for producing an image and providing a print mask having mask values which, in each pass, sequentially corresponds to predetermined pixels and, in response to the mask values and the code values of such pixels, operates the inkjet printer to select the ink drop size for each pixel in each pass so that the inkjet printer produces an image.
摘要翻译： 响应于具有代码值的数字图像的多次喷墨打印图像的方法包括提供能够在不同通过期间在每个打印位置打印至少两个墨滴的喷墨打印机，包括可以选择至少两种不同墨滴尺寸的打印头 并且选择用于产生图像的通行数，并提供具有掩模值的打印掩模，所述掩码值在每次通过中顺序地对应于预定的像素，并且响应于这些像素的掩码值和代码值，操作喷墨打印机 以在每次通过中为每个像素选择墨滴尺寸，以便喷墨打印机产生图像。
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32.发明授权Method and apparatus for printing an image on a device having multiple dot densities and multiple dot areas 失效用于在具有多个点密度和多个点区域的设备上打印图像的方法和装置
公开(公告)号：US5975671A
公开(公告)日：1999-11-02
申请号：US657723
申请日：1996-05-30
摘要： A method for processing a digitized continuous tone image so that such processed image is adapted to be applied to an image rendering device which prints dots from a set of two or more possible dot-areas and from a set of colorants having different colorant concentrations is disclosed. The method includes selecting a set of N dot-area and colorant concentration combinations, each of said combinations producing a different integrated optical density value and multilevel halftone processing the digitized continuous tone image to produce an output image having a set of output levels wherein one member of the set of N dot-area and colorant concentration combinations is associated with each of the possible output levels.
摘要翻译： 一种用于处理数字化连续色调图像的方法，使得这种处理后的图像适于应用于从一组两个或更多个可能的点区域和从具有不同着色剂浓度的一组着色剂中打印点的图像渲染装置 。 该方法包括选择一组N个点区域和着色剂浓度组合，每个所述组合产生不同的积分光密度值，并且多级半色调处理数字化连续色调图像以产生具有一组输出电平的输出图像，其中一个成员 的N个点区域和着色剂浓度组合的组合与每个可能的输出水平相关联。
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33.发明授权Method and apparatus for suppressing blocking artifacts in block-transform coded images 失效用于抑制块变换编码图像中的块伪影的方法和装置
公开(公告)号：US5737451A
公开(公告)日：1998-04-07
申请号：US630553
申请日：1996-04-10
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/149 , H04N19/154 , H04N19/18 , H04N19/44 , H04N19/48 , H04N19/527 , H04N19/60 , H04N19/146
摘要： An improved method for removing blocking artifacts in regions of slowly varying intensity in an electronic image decoded from a transform coded representation of an image, includes the steps of: receiving signals indicative of DC and AC coefficient values of transformed blocks of image data; modifying the DC value in each of the blocks based on the level of activity within the block and the DC values in neighboring blocks; performing AC prediction in each block using the modified DC values; replacing the AC values in each block with the AC predicted values based on the level of activity within the block and the modified DC values in neighboring blocks; and reconstructing the image using the modified DC and AC coefficient values.
摘要翻译： 一种用于去除从图像的变换编码表示解码的电子图像中的缓慢变化强度的区域中的块伪影的改进方法，包括以下步骤：接收指示图像数据的变换块的DC和AC系数值的信号; 基于块内的活动级别和相邻块中的DC值来修改每个块中的DC值; 使用修改的DC值在每个块中执行AC预测; 基于块内的活动水平和相邻块中的修改的DC值，用AC预测值替换每个块中的AC值; 并使用经修改的DC和AC系数值重建图像。
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34.发明授权Apparatus and method for generating multi-level output values for pixels in a halftone cell 失效用于生成半色调单元中的像素的多级输出值的装置和方法
公开(公告)号：US5291311A
公开(公告)日：1994-03-01
申请号：US906142
申请日：1992-06-29
申请人： Rodney L. Miller
发明人： Rodney L. Miller
CPC分类号： H04N1/40087
摘要： Apparatus and a method for generating a multi-level halftone image (104) from a digitally sampled continuous tone image (101). The apparatus includes a control circuit (140), a preference matrix (150) having as its matrix elements addresses of a plurality of look-up tables (160) and a plurality of look-up tables (160) in the form of a look-up table stack (155). Generally, the control circuit (140) instructs the preference matrix (150) to select a look-up table (160) from the look-up table stack (155) in a pre-defined manner. The selected table (160) is used to convert an intensity value (102) into a multi-level pixel value (106) in the halftone image (104). To accomplish the conversion, each look-up table (160) contains a quantized one-dimensional transfer function (165') having as an input the magnitude of the intensity value (102). The magnitude is mapped into an output level by the transfer function as one of a plurality of available levels. The output level is assigned a pixel location in a halftone cell (103). The look-up table selection is repeated for each element of the preference matrix (150) and the magnitude of each intensity value (102) is mapped into the halftone cell (103) to generate a multi-level halftone image (104).
摘要翻译： 用于从数字采样的连续色调图像（101）生成多级半色调图像（104）的装置和方法。 该装置包括控制电路（140），具有多个查找表（160）的地址的多个查询表（160）的矩阵元素的偏好矩阵（150）和外观形式的多个查找表（160） - 桌子堆栈（155）。 通常，控制电路（140）指示偏好矩阵（150）以预定义的方式从查找表堆栈（155）中选择查找表（160）。 所选择的表（160）用于将亮度值（102）转换成半色调图像（104）中的多级像素值（106）。 为了完成转换，每个查找表（160）包含具有强度值（102）的大小作为输入的量化的一维传递函数（165'）。 通过传递函数将幅度映射到输出电平作为多个可用电平之一。 在半色调单元（103）中为输出电平分配像素位置。 对于偏好矩阵（150）的每个元素重复查找表选择，并且将每个强度值（102）的大小映射到半色调单元（103）以产生多级半色调图像（104）。
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公开(公告)号：US08478062B2
公开(公告)日：2013-07-02
申请号：US12607347
申请日：2009-10-28
申请人： Mrityunjay Kumar , Rodney L. Miller
发明人： Mrityunjay Kumar , Rodney L. Miller
IPC分类号： G06K9/40
摘要： A method for producing a noise-reduced digital image captured using a digital imaging system having signal-dependent noise characteristics, comprising: capturing one or more noisy digital images of a scene, wherein said at least one noisy digital image has signal-dependent noise characteristics; defining a functional relationship to relate the noisy digital images to a noise-reduced digital image, wherein the functional relationship includes at least two sets of unknown parameters, and wherein at least one of the sets of unknown parameters relates to the signal-dependent noise characteristics; defining an energy function responsive to the functional relationship which includes at least a data fidelity term to enforce similarities between the noisy digital images and the noise-reduced digital image, and a spatial fidelity term to encourage sharp edges in the noise-reduced digital image; and using an optimization process to determine a noise-reduced image responsive to the energy function.
摘要翻译： 一种用于产生使用具有信号相关噪声特性的数字成像系统捕获的降噪数字图像的方法，包括：捕获场景的一个或多个嘈杂数字图像，其中所述至少一个噪声数字图像具有信号相关噪声特性 ; 定义将噪声数字图像与降噪数字图像相关联的功能关系，其中所述功能关系包括至少两组未知参数，并且其中未知参数组中的至少一个与信号相关的噪声特征相关 ; 定义响应于所述功能关系的能量函数，所述能量函数至少包括数据保真度项，以强制噪声数字图像和噪声减小的数字图像之间的相似性，以及空间保真项来促进噪声降低的数字图像中的尖锐边缘; 并且使用优化处理来确定响应于能量函数的噪声降低的图像。
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公开(公告)号：US08184928B2
公开(公告)日：2012-05-22
申请号：US12582110
申请日：2009-10-20
申请人： Kumar Mrityunjay , David D. Conger , Jiebo Luo , Rodney L. Miller
发明人： Kumar Mrityunjay , David D. Conger , Jiebo Luo , Rodney L. Miller
IPC分类号： G06K9/32
摘要： A method for resizing an input digital image to form an output digital image with an output aspect ratio, comprising: determining a number of rows or columns that need to be reduced from the input digital image; determining an image energy map for the input digital image; repeatedly determining a seam path responsive to the image energy map and removing pixels along the determined seam path to determine the output digital image, wherein the determined seam path satisfies a constraint that a directional image gradient is less than a gradient threshold for each pixel in the seam path, until either the determined number of rows or columns has been reduced or no valid seam path can be found; and cropping or scaling the output digital image to the output aspect ratio if the determined number of rows or columns was not reduced.
摘要翻译： 一种用于调整输入数字图像的大小以形成具有输出宽高比的输出数字图像的方法，包括：从所述输入数字图像确定需要减少的行或列的数量; 确定所述输入数字图像的图像能量图; 重复地确定响应于图像能量图的接缝路径并且沿着确定的接缝路径去除像素以确定输出数字图像，其中所确定的接缝路径满足方向图像梯度小于梯度阈值的约束 接缝路径，直到确定的行数或列数已经减少或没有找到有效的接缝路径; 并且如果确定的行数或列数不减少，则将输出数字图像裁剪或缩放为输出宽高比。
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公开(公告)号：US20110091132A1
公开(公告)日：2011-04-21
申请号：US12582110
申请日：2009-10-20
申请人： Mrityunjay Kumar , David D. Conger , Jiebo Luo , Rodney L. Miller
发明人： Mrityunjay Kumar , David D. Conger , Jiebo Luo , Rodney L. Miller
IPC分类号： G06K9/32
摘要： A method for resizing an input digital image to form an output digital image with an output aspect ratio, comprising: determining a number of rows or columns that need to be reduced from the input digital image; determining an image energy map for the input digital image; repeatedly determining a seam path responsive to the image energy map and removing pixels along the determined seam path to determine the output digital image, wherein the determined seam path satisfies a constraint that a directional image gradient is less than a gradient threshold for each pixel in the seam path, until either the determined number of rows or columns has been reduced or no valid seam path can be found; and cropping or scaling the output digital image to the output aspect ratio if the determined number of rows or columns was not reduced.
摘要翻译： 一种用于调整输入数字图像的大小以形成具有输出宽高比的输出数字图像的方法，包括：从所述输入数字图像确定需要减少的行或列的数量; 确定所述输入数字图像的图像能量图; 重复地确定响应于图像能量图的接缝路径并且沿着确定的接缝路径去除像素以确定输出数字图像，其中所确定的接缝路径满足方向图像梯度小于梯度阈值的约束 接缝路径，直到确定的行数或列数已经减少或没有找到有效的接缝路径; 并且如果确定的行数或列数不减少，则将输出数字图像裁剪或缩放为输出宽高比。
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公开(公告)号：US20110085745A1
公开(公告)日：2011-04-14
申请号：US12576260
申请日：2009-10-09
申请人： Mrityunjay Kumar , David D. Conger , Jiebo Luo , Rodney L. Miller
发明人： Mrityunjay Kumar , David D. Conger , Jiebo Luo , Rodney L. Miller
IPC分类号： G06K9/32
CPC分类号： G06T3/0012
摘要： A method for modifying an input digital image having input dimensions defined by a number of input rows and input columns to form an output digital image where the number of rows or columns is reduced by one, comprising an image energy map determined from the input image; determining a seam path responsive to the image energy map; imposing constraints on the seam path; and removing pixels along the seam path to modify the input digital image.
摘要翻译： 一种用于修改输入数字图像的方法，该输入数字图像具有由多个输入行和输入列定义的输入尺寸，以形成输出数字图像，其中行或列的数量减1，包括从输入图像确定的图像能量图; 确定响应于所述图像能量图的接缝路径; 对缝线施加约束; 并沿着接缝路径去除像素以修改输入的数字图像。
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39.发明授权Method for multilevel printing of digital images using reduced colorant amounts 有权使用减少的着色剂量对数字图像进行多层印刷的方法公开(公告)号：US07190485B2
公开(公告)日：2007-03-13
申请号：US09881460
申请日：2001-06-14
IPC分类号： G06F15/00
CPC分类号： H04N1/52 , H04N1/6019
摘要： A method for modifying an input digital image having an (x, y) array of pixels, each pixel having an input code value for one or more color channels, wherein said input code value has a nonlinear relationship to colorant amount, to form an output digital image containing output code values for each pixel subject to a total colorant amount limit.
摘要翻译： 一种用于修改具有（x，y）像素阵列的输入数字图像的方法，每个像素具有用于一个或多个颜色通道的输入代码值，其中所述输入代码值与着色剂量具有非线性关系，以形成输出 数字图像包含受到着色剂总量限制的每个像素的输出代码值。
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40.发明授权Method for multicolorant printing of digital images using reduced colorant amounts 有权使用着色剂量减少的多色印刷数字图像的方法公开(公告)号：US06435657B1
公开(公告)日：2002-08-20
申请号：US09933498
申请日：2001-08-20
IPC分类号： B41J221
CPC分类号： B41J2/21 , B41J2/2056 , H04N1/52
摘要： A method for modifying an input image suitable for printing on a digital printer having two or more colorants, wherein at least two of the colorants are similar having substantially the same color but different densities, to form an output image with pixels representing modified colorant amounts subject to a total colorant amount limit.
摘要翻译： 一种用于修改适于在具有两个或更多个着色剂的数字打印机上打印的输入图像的方法，其中至少两个着色剂具有基本上相同颜色但不同密度的相似颜色，以形成具有代表改性着色剂量对象的像素的输出图像 达到总着色剂量极限。
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