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公开(公告)号：US08213745B2
公开(公告)日：2012-07-03
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
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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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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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：US20110096205A1
公开(公告)日：2011-04-28
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
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与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降噪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：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：US20140072242A1
公开(公告)日：2014-03-13
申请号：US13608099
申请日：2012-09-10
IPC分类号： G06K9/32
CPC分类号： G06T3/0056 , H04N19/134 , H04N19/14 , H04N19/176 , H04N19/865
摘要： A method for resizing an input digital image to provide a high-resolution output digital image having a larger number of image pixels. The input image pixels in the input digital image are analyzed and assigned to different pixel classifications. A plurality of pixel generation processes are provided, each pixel generation process being associated with a different pixel classification and being adapted to operate on a neighborhood of input image pixels around a particular input image pixel to provide a plurality of output image pixels. Each input image pixel is processed using a pixel generation process that is selected in accordance with the corresponding pixel classification to produce the high-resolution output digital image.
摘要翻译： 一种用于调整输入数字图像的大小以提供具有更大数量的图像像素的高分辨率输出数字图像的方法。 输入数字图像中的输入图像像素被分析并分配给不同的像素分类。 提供了多个像素生成处理，每个像素生成处理与不同的像素分类相关联，并适于对特定输入图像像素周围的输入图像像素的邻域进行操作以提供多个输出图像像素。 使用根据相应的像素分类选择的像素生成处理来处理每个输入图像像素，以产生高分辨率输出数字图像。
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公开(公告)号：US06352328B1
公开(公告)日：2002-03-05
申请号：US08899574
申请日：1997-07-24
申请人： Xin Wen , Rodney L. Miller
发明人： Xin Wen , Rodney L. Miller
IPC分类号： B41J2205
CPC分类号： B41J2/04573 , B41J2/04 , B41J2/0458 , B41J2/04588 , B41J2/0459 , B41J2/04591 , B41J2/04595 , B41J2/2128 , H04N1/40025 , H04N1/40043 , H04N1/40087
摘要： Digital ink jet printing apparatus and method. The apparatus receives an input image file having a plurality of pixels, each pixel described by at least one pixel value respectively associated with an optical density. The apparatus comprises a printhead and at least one nozzle integrally attached to the printhead, the nozzle being capable of ejecting an ink droplet therefrom to define an associated one of the optical densities. A waveform generator is connected to the nozzle for generating an electronic waveform to be supplied to the nozzle. In this manner, the nozzle ejects the ink droplet in response to the waveform supplied thereto. The waveform is defined by a plurality of pulses. A look-up table stores a plurality of waveform serial numbers assigned to respective waveforms, each waveform being defined by at least one predetermined parameter, such as number of pulses, pulse amplitude, pulse width and/or time delay between pulses. A calibrator receiving the input image converts the pixel values of the input image to waveform index number associated with the waveform serial number.
摘要翻译： 数字喷墨打印设备及方法。 该装置接收具有多个像素的输入图像文件，每个像素由分别与光密度相关联的至少一个像素值描述。 该设备包括打印头和与打印头整体连接的至少一个喷嘴，喷嘴能够从其喷射墨滴以限定相关联的一个光密度。 波形发生器连接到喷嘴，用于产生要供应到喷嘴的电子波形。 以这种方式，喷嘴响应于供给的波形喷射墨滴。 波形由多个脉冲定义。 查找表存储分配给各个波形的多个波形序列号，每个波形由至少一个预定参数（例如脉冲数，脉冲幅度，脉冲宽度和/或脉冲之间的时间延迟）来定义。 接收输入图像的校准器将输入图像的像素值转换成与波形序列号相关联的波形索引号。
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9.发明授权Method of printing digital images using multiple colorants having substantially the same color 有权使用具有基本上相同颜色的多个着色剂打印数字图像的方法公开(公告)号：US06312101B1
公开(公告)日：2001-11-06
申请号：US09455981
申请日：1999-12-06
IPC分类号： B41J221
CPC分类号： H04N1/40087
摘要： A method for reproducing digital images having at least one color channel containing pixels using a digital printer having a set of colorants is disclosed. Two or more of the colorants of the set have substantially the same color but different densities. Printer code values for a particular color channel are used to control colorant amounts for the two or more colorants.
摘要翻译： 公开了一种使用具有一组着色剂的数字打印机再现具有至少一个包含像素的彩色通道的数字图像的方法。 组合物中的两种或更多种着色剂具有基本相同的颜色但不同的密度。 用于特定颜色通道的打印机代码值用于控制两种或更多种着色剂的着色剂量。
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公开(公告)号：US5822451A
公开(公告)日：1998-10-13
申请号：US658452
申请日：1996-06-05
CPC分类号： H04N1/52 , H04N1/4051
摘要： A method for halftoning a multi-channel digital color image having an x,y array of color pixel values, includes the steps of: providing a matrix of dither values for each color channel of the digital color image wherein two or more of the matrices of dither values are designed jointly to minimize a visual cost function; for each color channel modularly addressing the matrix of dither values with the location of a pixel in the digital color image to obtain an addressed dither value; comparing the addressed dither value for each color channel with the pixel value for the corresponding color channel to determine an output halftone image value for each color channel; and repeating steps b and c for each pixel in the digital image.
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