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公开(公告)号：US12022048B2
公开(公告)日：2024-06-25
申请号：US18248767
申请日：2021-10-05
申请人： DIC Corporation
IPC分类号： H04N1/60
CPC分类号： H04N1/6027 , H04N1/6055 , H04N1/608 , H04N2201/3257 , H04N2201/326
摘要： A display unit color-correction method includes: a first step of displaying a prescribed image on a display unit of a portable communication terminal that includes an imaging unit and the display unit; a second step of acquiring imaging data by imaging a color chart, which is a printed matter, and the display unit with the prescribed image displayed thereon together or individually by the imaging unit; and a third step of correcting a color of the display unit by using color information on the prescribed image in the imaging data and color information on a color in the color chart in the imaging data.
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2.发明申请公开(公告)号：US20190230254A1
公开(公告)日：2019-07-25
申请号：US16250375
申请日：2019-01-17
申请人： Yusuke TANEDA , Kohei SHIMBO , Yoichi KUBOTA
发明人： Yusuke TANEDA , Kohei SHIMBO , Yoichi KUBOTA
CPC分类号： H04N1/6097 , G01J3/52 , G01J3/524 , H04N1/00689 , H04N1/00692 , H04N1/00726 , H04N1/00734 , H04N1/603 , H04N1/6055
摘要： A spectral characteristic obtaining apparatus includes a color information obtaining unit including a plurality of spectral sensors aligned in an array direction, the spectral sensors being configured to receive light reflected from an object so as to obtain first color information of the object; a spectral characteristic calculating unit configured to estimate a spectral characteristic of the object based on the first color information by using a preset transformation matrix; a calibration color index configured to include a region of a color with a known spectral characteristic; and a transformation matrix calibrating unit configured to calibrate the transformation matrix by using second color information obtained from the calibration color index, wherein the spectral sensors are configured to obtain the second color information from the same region included in the calibration color index, while relative positions thereof with respect to the calibration color index are changed at a time of calibration.
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公开(公告)号：US09986134B2
公开(公告)日：2018-05-29
申请号：US15297577
申请日：2016-10-19
申请人： KONICA MINOLTA, INC.
发明人： Tsuyoshi Sugita , Katsuji Kondo
CPC分类号： H04N1/6055
摘要： Provided are a profile creation apparatus, a non-transitory computer-readable storage medium storing a profile creation program and a profile creation method. The profile creation apparatus includes a standard-color-profile obtaining section that obtains a standard color profile and a reference-device-profile obtaining section that obtains a reference-device profile. The profile creation apparatus further includes a color-conversion-table creation section that creates a color conversion table by combining the standard color profile and reference-device profile with being weighted such that a weighed ratio of the standard color profile increases as chroma calculated from input color values of the color conversion table increases, in a predetermined chroma region. The profile creation apparatus further includes a color conversion section that performs color conversion on a print image by using the color conversion table and outputs the print image to a certain printing device.
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公开(公告)号：US09851928B2
公开(公告)日：2017-12-26
申请号：US14391125
申请日：2012-04-12
申请人： Gal Amit , Ran Waidman , Tsafrir Yedid Am
发明人： Gal Amit , Ran Waidman , Tsafrir Yedid Am
CPC分类号： G06F3/1208 , G06F3/1254 , G06F3/1281 , G06F3/1288 , G06K15/027 , H04N1/00087 , H04N1/6052 , H04N1/6055
摘要： In one embodiment, a processor-readable medium stores code representing instructions that when executed by a processor cause the processor to print a print job, and determine target color data for each sheet of the print job while printing the job. The instructions further cause the processor to continually save the target color data to a server for each sheet of the print job as each sheet is printed.
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5.发明申请公开(公告)号：US20170359491A1
公开(公告)日：2017-12-14
申请号：US15618069
申请日：2017-06-08
申请人： THOMSON LICENSING
发明人： Jurgen STAUDER , Anita ORHAND , Patrick MORVAN
CPC分类号： H04N1/646 , H04N1/6005 , H04N1/6008 , H04N1/6055 , H04N1/6058 , H04N2201/0084 , H04N2201/0089 , H04N2201/0096
摘要： According to this method, the mapping color LUT has input colors that sample not only a source color gamut (included in an input encoding color space in which inputs colors of this LUT are encoded) but also a portion of the input encoding color space which is not included in the source color gamut. Preferably, this color LUT further includes output colors located outside the target color gamut. Accuracy of the mapping is improved, notably for source colors located near the boundary of the source color gamut.
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公开(公告)号：US20170318195A1
公开(公告)日：2017-11-02
申请号：US15141950
申请日：2016-04-29
发明人： Kazuto YAMAMOTO
CPC分类号： H04N1/6055 , H04N1/00347 , H04N1/6044 , H04N2201/0039 , H04N2201/0094
摘要： A method, a system, and a non-transitory computer readable recording medium are disclosed for a first printer connected to a second printer to perform color calibration for the second printer, wherein the second printer does not have a sensor, the first printer including a sensor which measures a media, which has been printed by the second printer and is being fed on a media path of the first printer. The method includes (a) determining the timing to instruct the second printer to print a first measurement chart; (b) instructing, at the timing determined at step (a), the second printer to print the first measurement chart; (c) measuring, by the sensor, the first measurement chart which has been printed by the second printer; and (d) outputting information corresponding to a result measured at step (c).
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公开(公告)号：US09756324B1
公开(公告)日：2017-09-05
申请号：US15483707
申请日：2017-04-10
申请人： GELT Inc.
发明人： Mark S. Flanagan , James Paolino
CPC分类号： H04N17/02 , G01J3/52 , G06K9/0014 , G06K9/2063 , G06K9/4652 , G06T7/80 , G06T7/90 , G06T2207/10024 , G06T2207/30204 , H04N1/603 , H04N1/6047 , H04N1/6052 , H04N1/6055 , H04N5/2258 , H04N9/045 , H04N9/73
摘要： Systems and methods for color calibrating an image are described herein. In some embodiments, a method includes disposing a unique identifier and a fiducial marker that includes a plurality of color regions on an object. A first image of the object is captured with a first camera and a second image of the object that is captured with a second camera is received. The second image is associated with the first image based on the unique identifier and spectral information of at least a portion of the fiducial marker in the second image is compared with spectral information of at least the portion of the fiducial marker in the first image. Based on the comparison, the second image is resampled to substantially match at least the portion of the fiducial marker in the second image to at least the portion of the fiducial marker in the first image.
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公开(公告)号：US20170180610A1
公开(公告)日：2017-06-22
申请号：US15379818
申请日：2016-12-15
申请人： AGFA GRAPHICS NV
发明人： Koen VANDE VELDE , Marc MAHY
IPC分类号： H04N1/60
CPC分类号： H04N1/6055 , H04N1/6008 , H04N1/6013 , H04N1/6033 , H04N1/605 , H04N1/6058
摘要： A standard printer characterization target is printed with a reference printer and measured. From the measured data, a model is derived that describes for each ink the behavior of each individual ink in combination with different combinations of the other inks. In order to reduce the complexity for obtaining a printer model of a second printer, a second target is printed that includes only a subset of the color patches in the standard printer characterization target. With the model and interpolation, it is possible to reconstruct colorimetric data for missing color patches in the reduced target.
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公开(公告)号：US09654670B2
公开(公告)日：2017-05-16
申请号：US15144635
申请日：2016-05-02
申请人： FUJIFILM Corporation
发明人： Shuhei Horita , Takahiro Mishima
CPC分类号： H04N1/6019 , G06K15/027 , G06K15/1878 , H04N1/00023 , H04N1/00034 , H04N1/00045 , H04N1/00068 , H04N1/6033 , H04N1/6055
摘要： A color conversion table creation device includes an image reading unit, a first color conversion unit color-converting read image data using a first color conversion table indicating a correspondence relationship between signal values obtained by the image reading unit and chromaticity values, a second color conversion unit color-converting document image data into print image data using an input and output color conversion tables, an image association unit performing an association process for a positional relationship between each piece of read image data of a printed matter obtained according to print image data and a target printed matter or each piece of read chromaticity value image data converted into chromaticity values and the document image data, and a color conversion table creation unit creating a color conversion table to be used in the second color conversion table based on differences between chromaticity values of the target printed matter and printed matter.
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公开(公告)号：US20170013174A1
公开(公告)日：2017-01-12
申请号：US15113531
申请日：2014-01-30
CPC分类号： H04N1/6055 , H04N1/0044 , H04N1/6008
摘要： Certain methods and systems are described to provide color modelling. This color modelling applies to halftone images. In one example, a correction parameter for a color model is determined by minimizing a distance metric between a set of estimated spectral reflectance values and a set of measured spectral reflectance values to generate a multi-dimensional correction parameter. This enables a color model to be used to map at least one Neugebauer Primary area coverage value to at least one spectral reflectance value.
摘要翻译： 描述了某些方法和系统来提供颜色建模。 这种颜色建模适用于半色调图像。 在一个示例中，通过最小化一组估计的光谱反射率值与一组测量的光谱反射率值之间的距离度量来确定用于颜色模型的校正参数，以生成多维校正参数。 这使得可以使用颜色模型来将至少一个Neugebauer主区域覆盖值映射到至少一个光谱反射率值。
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