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公开(公告)号：US07751083B2
公开(公告)日：2010-07-06
申请号：US11694098
申请日：2007-03-30
CPC分类号： H04N1/6094 , H04N1/603
摘要： A method for automatically compensating for scanner metamerism errors associated with scanning input images using a digital color image scanner, wherein the input images can be on a variety of different input media having colorants with different spectral characteristics, comprising scanning an input image on a digital color image scanner to produce a scanned image; determining one or more estimated color balance error values in a color balance parameter space by analyzing the scanned image using a color balance analysis algorithm; assigning an input medium from a set of possible input media for the scanned input image in response to the estimated color balance error values; selecting a scanner metamerism correction color transform associated with the assigned input medium; and applying the selected scanner metamerism correction color transform to the scanned image to produce a corrected image compensated for scanner metamerism errors.
摘要翻译： 一种用于自动补偿与使用数字彩色图像扫描器扫描输入图像相关的扫描器同色异谱误差的方法，其中所述输入图像可以在具有不同光谱特性的着色剂的各种不同输入介质上，包括以数字颜色扫描输入图像 图像扫描仪产生扫描图像; 通过使用颜色平衡分析算法分析扫描图像来确定颜色平衡参数空间中的一个或多个估计的颜色平衡误差值; 响应于估计的颜色平衡误差值，从扫描的输入图像的一组可能的输入介质中分配输入介质; 选择与分配的输入介质相关联的扫描器同色异谱校正颜色变换; 以及将所选择的扫描器同色异谱校正颜色变换应用于扫描图像，以产生补偿扫描器同色异谱误差的校正图像。
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公开(公告)号：US20100128313A1
公开(公告)日：2010-05-27
申请号：US12275705
申请日：2008-11-21
IPC分类号： H04N1/40
CPC分类号： H04N1/52
摘要： A method for multi-toning an input digital image having input pixels with two or more color channels to form an output digital image having modified output levels. The method includes determining modified output levels using a combined error signal formed from intermediate error signals for each color channel together with an error signal offset value, and adjusting the input levels for the nearby pixels responsive to weighted error signals.
摘要翻译： 一种用于多输入具有两个或多个颜色通道的输入像素的输入数字图像以形成具有修改的输出电平的输出数字图像的方法。 该方法包括使用由每个颜色通道的中间误差信号形成的组合误差信号以及误差信号偏移值来确定修正的输出电平，以及响应于加权误差信号调整附近像素的输入电平。
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公开(公告)号：US07583406B2
公开(公告)日：2009-09-01
申请号：US11210168
申请日：2005-08-23
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。
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84.发明授权Selection of alternative image processing operations to maintain high image quality 有权选择替代图像处理操作以保持高图像质量公开(公告)号：US07570829B2
公开(公告)日：2009-08-04
申请号：US11059935
申请日：2005-02-17
申请人： Raymond W. Ptucha , William V. Fintel , Andrew C. Gallagher , Edward B. Gindele , Jeffrey C. Snyder , Kevin E. Spaulding
发明人： Raymond W. Ptucha , William V. Fintel , Andrew C. Gallagher , Edward B. Gindele , Jeffrey C. Snyder , Kevin E. Spaulding
CPC分类号： G06T5/40 , G06T5/009 , G06T2207/20016 , H04N1/60
摘要： In an image enhancement method, a regular enhancement function and an aggressiveness parameter are computed using characteristics of a digital image. A first, relatively slow enhancement algorithm is applied to the digital image using the regular enhancement function, when an aggressiveness parameter is in a predetermined high range. A second, relatively fast enhancement algorithm is applied to the digital image using the regular enhancement function, when an aggressiveness parameter is in a predetermined low range. A modified enhancement function is calculated using characteristics of the digital image and is used with a second, relatively fast enhancement algorithm, when the aggressiveness parameter is in a predetermined medium range.
摘要翻译： 在图像增强方法中，使用数字图像的特征来计算常规增强函数和侵略性参数。 当攻击性参数处于预定的高范围时，使用常规增强功能将第一相对较慢的增强算法应用于数字图像。 当攻击性参数处于预定的低范围时，使用常规增强功能将第二相对较快的增强算法应用于数字图像。 使用数字图像的特性来计算修改的增强函数，并且当攻击性参数处于预定的中等范围时，使用第二相对较快的增强算法。
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公开(公告)号：US07369276B2
公开(公告)日：2008-05-06
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。
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86.发明授权Producing an extended color gamut luminance-chrominance digital image from a captured image 失效从捕获的图像生成扩展色域亮度色度数字图像公开(公告)号：US07289663B2
公开(公告)日：2007-10-30
申请号：US10202313
申请日：2002-07-24
IPC分类号： G06K9/36
CPC分类号： H04N1/6058
摘要： A method for producing an extended color gamut luminance-chrominance digital image from a captured digital image includes determining an estimate of the colors of the captured digital image of an original scene and further processing to produce an extended range output RGB image value including values outside the range that can be displayed on the output image display device, and producing an extended color gamut luminance-chrominance digital image by transforming the extended range output RGB image values to a luminance-chrominance representation.
摘要翻译： 从捕获的数字图像生成扩展色域亮度色度数字图像的方法包括确定原始场景的所捕获的数字图像的颜色的估计值，并且进一步处理以产生包括外部值的扩展范围输出RGB图像值 可以显示在输出图像显示装置上的范围，并且通过将扩展范围输出RGB图像值变换为亮度 - 色度表示来产生扩展色域亮度色度数字图像。
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公开(公告)号：US07234791B2
公开(公告)日：2007-06-26
申请号：US11114530
申请日：2005-04-26
CPC分类号： H04N1/58
摘要： A method for forming a modified digital image by modifying an input digital image having a black input color channel corresponding to a black colorant and one or more additional input color channels corresponding to additional colorants, each color channel having an (x,y) array of image pixel values, to form a modified digital image having one or more modified color channels, said modified digital image being suitable for producing a printed image having reduced ink bleed artifacts on an inkjet printer using the black and additional colorants includes forming a filtered black color channel from the black input color channel using a convolution operation, and forming the modified digital image by modifying image pixel values in one or more of the additional input color channels in response to the corresponding image pixel values of the filtered black color channel.
摘要翻译： 一种用于通过修改具有与黑色着色剂相对应的黑色输入色彩通道的输入数字图像和与另外的着色剂相对应的一个或多个附加输入颜色通道来形成修改的数字图像的方法，每个颜色通道具有（x，y） 图像像素值，以形成具有一个或多个修改的颜色通道的修改的数字图像，所述修改的数字图像适合于使用黑色和附加着色剂在喷墨打印机上产生具有减少的排墨伪影的打印图像，包括形成滤色黑色 通过使用卷积运算从黑色输入色彩通道输出通道，并且通过响应于滤色黑色通道的相应图像像素值修改一个或多个附加输入颜色通道中的图像像素值来形成修改的数字图像。
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公开(公告)号：US07012617B2
公开(公告)日：2006-03-14
申请号：US10846930
申请日：2004-05-17
申请人： Jiebo Luo , Qing Yu , Kevin E. Spaulding
发明人： Jiebo Luo , Qing Yu , Kevin E. Spaulding
IPC分类号： G09G5/02
CPC分类号： H04N1/644
摘要： Disclosed is a method for converting an input digital color image having a set of possible input colors to an output digital color image having a set of palette colors, the number of palette colors being less than the number of possible input colors, wherein the set of palette colors is determined based on the distribution of colors in the input digital image boosted by a distribution of important colors contained in the input digital image.
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公开(公告)号：US06856427B1
公开(公告)日：2005-02-15
申请号：US09315646
申请日：1999-05-20
申请人： Paul B. Gilman , Kenneth A. Parulski , Kevin E. Spaulding , Robert P. Collette , John F. Hamilton
发明人： Paul B. Gilman , Kenneth A. Parulski , Kevin E. Spaulding , Robert P. Collette , John F. Hamilton
CPC分类号： H04N1/6011 , H04N1/407
摘要： A method for correcting for exposure in a digital image, captured by an image capture device, including rendering such captured digital image suitable for display and displaying such captured digital image as a first displayed digital image; and using an adjustable exposure setting to nonlinearly modify the rendered captured digital image to effect an exposure change and displaying the exposure modified rendered captured digital image as a second digital image simultaneous with the first displayed digital image.
摘要翻译： 一种用于校正由图像捕获装置拍摄的数字图像中的曝光的方法，包括：渲染适合于显示的所述数字图像并显示与第一显示数字图像相关的所述数字图像; 并且使用可调节曝光设置来非线性地修改所渲染的所拍摄的数字图像以实现曝光改变，并且与第一显示的数字图像同时显示作为第二数字图像的曝光修改的被渲染的数字图像。
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公开(公告)号：US06795585B1
公开(公告)日：2004-09-21
申请号：US09354808
申请日：1999-07-16
IPC分类号： G06K940
摘要： A method for representing a digital image in a plurality of image processing states using at least one reference digital image and at least one residual image comprising the steps of manipulating an input digital image using at least one digital image processing enhancement step to form at least one additional digital image in a different image processing state; designating at least one of the digital images to be a reference digital image in a reference image processing state; and determining at least one residual image representing differences between one of the reference digital images and one of the additional digital images, whereby the residual image(s) and the reference digital image(s) can be used to form digital image(s) in different image processing states.
摘要翻译： 一种用于使用至少一个参考数字图像和至少一个残差图像来表示多个图像处理状态中的数字图像的方法，包括以下步骤：使用至少一个数字图像处理增强步骤来操纵输入数字图像，以形成至少一个 附加的数字图像处于不同的图像处理状态; 在参考图像处理状态中将所述数字图像中的至少一个指定为参考数字图像; 以及确定表示所述参考数字图像之一与所述附加数字图像之一之间的差异的至少一个残差图像，由此残留图像和所述参考数字图像可被用于形成数字图像 不同的图像处理状态。
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