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公开(公告)号：US20110211229A1
公开(公告)日：2011-09-01
申请号：US13105063
申请日：2011-05-11
IPC分类号： H04N1/405
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：US20100201851A1
公开(公告)日：2010-08-12
申请号：US12764380
申请日：2010-04-21
IPC分类号： H04N5/208
CPC分类号： G06T7/0004 , G06T2207/20021 , G06T2207/20052 , G06T2207/30144 , G06T2207/30168 , H04N19/60 , H04N19/85
摘要： A method for determining a sharpness predictor for an input digital image includes determining one or more image metrics by analyzing the input digital image; and determining the sharpness predictor from the one or more image metrics.
摘要翻译： 用于确定输入数字图像的锐度预测器的方法包括通过分析输入数字图像来确定一个或多个图像度量; 以及从所述一个或多个图像度量确定所述锐度预测器。
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公开(公告)号：US20100141970A1
公开(公告)日：2010-06-10
申请号：US12330552
申请日：2008-12-09
IPC分类号： H04N1/60
CPC分类号： H04N1/60
摘要： A method for printing an input digital image using a digital printer having a set of colorants with substantially the same color but different densities, including a sequence of node points where each of the two or more colorants are either at their maximum or minimum values, setting colorant concentrations such that the color channel output responses corresponding to the sequence of node points are substantially equally spaced in a visually uniform color space; forming colorant control look-up tables to provide smooth transitions in the color channel output response between the sequence of node points; addressing the colorant control look-up tables with the printer code value for each pixel of the input digital image to determine the colorant control signals for each of the two or more colorants; and controlling the digital printer using the colorant control signals to produce a print of the input digital image.
摘要翻译： 一种使用具有基本上相同颜色但不同密度的一组着色剂的数字打印机打印输入数字图像的方法，包括其中两个或更多个着色剂中的每一个处于其最大值或最小值的节点点序列，设置 着色剂浓度使得对应于节点点序列的颜色通道输出响应在视觉均匀的颜色空间中基本相等间隔; 形成着色剂控制查找表，以在节点间序列中的颜色通道输出响应中提供平滑过渡; 使用输入数字图像的每个像素的打印机代码值寻址着色剂控制查找表，以确定两种或更多种着色剂中的每一种的着色剂控制信号; 以及使用着色剂控制信号来控制数字打印机以产生输入数字图像的打印。
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公开(公告)号：US07535596B2
公开(公告)日：2009-05-19
申请号：US11121768
申请日：2005-05-04
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。
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公开(公告)号：US20080239334A1
公开(公告)日：2008-10-02
申请号：US11694098
申请日：2007-03-30
IPC分类号： G06K15/00
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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16.发明授权Method for providing access to an extended color gamut digital image and providing payment therefor 失效提供对扩展色域数字图像的访问并提供付费的方法公开(公告)号：US06937362B1
公开(公告)日：2005-08-30
申请号：US09543038
申请日：2000-04-05
CPC分类号： H04N1/6058 , H04N1/34
摘要： A method for providing a user access to an extended color gamut digital image and for obtaining payment therefor, comprising the steps of representing the extended color gamut digital image with a limited color gamut digital image and one or more associated residual image(s) representing a difference between the extended color gamut digital image and the limited color gamut digital image; storing the limited color gamut digital image and the associated residual images(s) in an electronic memory; providing the user or user's designee access to the limited color gamut digital image in the electronic memory to provide a preview image; obtaining a payment identifier from the user and making payment using such payment identifier to permit the user or user's designee access to the associated residual image(s); and providing the user or user's designee access to the associated residual image(s) in the electronic memory.
摘要翻译： 一种用于提供用户对扩展色域数字图像的访问并用于获得其付费的方法，包括以下步骤：用有限色域数字图像和一个或多个相关联的残留图像表示扩展色域数字图像， 扩展色域数字图像与有限色域数字图像之间的差异; 将有限色域数字图像和相关联的残留图像存储在电子存储器中; 提供用户或用户的指定者访问电子存储器中的有限色域数字图像以提供预览图像; 从用户获得支付标识符并使用这种支付标识符进行支付，以允许用户或用户的指定者访问相关联的残留图像; 并且向用户或用户的指定者提供对电子存储器中的相关联的残留图像的访问。
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17.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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18.发明授权Using a set of residual images to represent an extended color gamut digital image 有权使用一组残差图像来表示扩展色域数字图像公开(公告)号：US06282313B1
公开(公告)日：2001-08-28
申请号：US09162205
申请日：1998-09-28
IPC分类号： G06K900
CPC分类号： G06T11/001
摘要： A method for representing a digital image having color values with an extended color gamut in a storage color space having a limited color gamut includes adjusting the color values of the extended color gamut digital image to fit within the limited color gamut to form a limited color gamut digital image; representing the limited color gamut digital image in the storage color space; determining a set of residual images representing a difference between the extended color gamut digital image and the limited color gamut digital image; and associating the set of residual images with the limited color gamut digital image in the storage color space such that the associated residual images and the limited color gamut digital image is adapted to be used to form a reconstructed extended color gamut digital image.
摘要翻译： 一种用于在具有有限色域的存储颜色空间中表示具有扩展色域的具有颜色值的数字图像的方法包括：调整扩展色域数字图像的颜色值以适应有限色域以形成有限色域 数字图像; 表示存储颜色空间中的有限色域数字图像; 确定表示所述扩展色域数字图像与所述有限色域数字图像之间的差的一组残差图像; 以及将所述残差图像集合与所述存储颜色空间中的所述有限色域数字图像相关联，使得相关联的残留图像和所述有限色域数字图像适于用于形成重构的扩展色域数字图像。
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19.发明授权System using one or more residual image(s) to represent an extended color gamut digital image 有权使用一个或多个残留图像来表示扩展色域数字图像的系统公开(公告)号：US06282312B1
公开(公告)日：2001-08-28
申请号：US09162201
申请日：1998-09-28
IPC分类号： G06K900
CPC分类号： H04N1/64 , G06T11/001 , H04N1/6058
摘要： A digital image processing system includes one or more opto-electronic image digitization device(s) which digitize still photographic images and produce an extended color gamut digital image corresponding to each still photographic image, and an image processing unit, coupled with said image digitization device(s), which is operative to receive a plurality of extended color gamut digital images from the image digitization device(s). The image processing unit produces at least one limited color gamut digital image from each said extended color gamut digital image by adjusting the color values of the extended color gamut digital image to fit within a limited color gamut; represents each said limited color gamut digital image in a storage color space; determines one or more residual image(s) each representing a difference between one said extended color gamut digital image and its corresponding limited color gamut digital image; and associates each limited color gamut digital image in the storage color space with its residual image(s) such that the associated residual images and the limited color gamut digital images in the storage color space are adapted to be used to reconstruct extended color gamut digital images.
摘要翻译： 数字图像处理系统包括一个或多个光电图像数字化装置，其将静止照相图像数字化并产生对应于每个静止摄影图像的扩展色域数字图像，以及图像处理单元，与所述图像数字化装置 其可操作以从图像数字化设备接收多个扩展色域数字图像。 图像处理单元通过调整扩展色域数字图像的颜色值以适应有限的色域，从每个所述扩展色域数字图像产生至少一个有限色域数字图像; 表示存储颜色空间中的每个所述有限色域数字图像; 确定每个表示一个所述扩展色域数字图像与其对应的有限色域数字图像之间的差的一个或多个残留图像; 并且将存储颜色空间中的每个有限色域数字图像与其残留图像相关联，使得相关联的残留图像和存储颜色空间中的有限色域数字图像适于用于重建扩展色域数字图像 。
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公开(公告)号：US6130756A
公开(公告)日：2000-10-10
申请号：US41206
申请日：1998-03-12
CPC分类号： H04N1/6033
摘要： A method for characterizing a response function of an output device, the method comprises the steps of producing a test image on the output device with a set of one or more test patches having known code values; obtaining one or more captured images of the test image using a digital camera; determining colorimetric values for each of the test patches in the captured images using a known response function of the digital camera; and determining a response function of the output device which relates the known code values to the determined colorimetric values.
摘要翻译： 一种用于表征输出设备的响应功能的方法，所述方法包括以下步骤：在输出设备上产生具有已知代码值的一组或多个测试片的集合; 使用数字照相机获得测试图像的一个或多个拍摄图像; 使用所述数字照相机的已知响应函数来确定所捕获的图像中的每个测试片的色度值; 以及确定所述输出设备的响应函数，其将所述已知代码值与确定的比色值相关联。
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