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公开(公告)号：US12125182B2
公开(公告)日：2024-10-22
申请号：US17754192
申请日：2021-04-27
发明人： Guannan Chen , Dan Zhu , Lijie Zhang
CPC分类号： G06T5/90 , G06T7/90 , G06T9/00 , G06V10/44 , G06V10/56 , H04N1/6019 , G06T2207/10024 , G06T2207/20081 , G06T2207/20208
摘要： The present disclosure provides an image processing method and an image processing apparatus. The image processing method includes: obtaining a to-be-converted SDR image; using a first convolutional network to perform feature analysis on the SDR image, to obtain N weights of the SDR image; where the N weights are respectively configured to characterize proportions of color information of the SDR image to color information characterized in preset N 3D lookup tables, the N 3D lookup tables are configured to characterize color information of different types; obtaining a first 3D lookup table for the SDR image according to the N weights and the N 3D lookup tables; using the first 3D lookup table to adjust the color information of the SDR image to obtain an HDR image; and using a second convolutional neural network to perform refinement correction on the HDR image to obtain an output image.
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公开(公告)号：US20230421715A1
公开(公告)日：2023-12-28
申请号：US18030191
申请日：2021-06-29
发明人： Tetsuo KANEKO , Takashi TSUCHIYA
CPC分类号： H04N1/6019 , H04N1/00023 , H04N1/6033 , H04N1/6063 , G06V10/56
摘要： There are provided an information processing system, an information processing apparatus, an information processing method, an information processing program, an imaging apparatus, a method of controlling the imaging apparatus, and a control program capable of easily performing color matching in a plurality of imaging apparatuses. The information processing system includes: an imaging apparatus that operates in a master mode; at least one imaging apparatus that operates in a slave mode; and an information processing apparatus. Each of the imaging apparatus in the master mode and the imaging apparatus in the slave mode sends a chart image generated by capturing an image of a specific chart to the information processing apparatus, and the information processing apparatus calculates a color conversion coefficient in the imaging apparatus in the slave mode on the basis of the chart image generated by the imaging apparatus in the master mode, and sends the color conversion coefficient to the imaging apparatus corresponding to the color conversion coefficient.
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公开(公告)号：US11829818B2
公开(公告)日：2023-11-28
申请号：US18051722
申请日：2022-11-01
发明人： Masanori Matsuzaki
CPC分类号： G06K15/027 , G06K15/1878 , H04N1/00005 , H04N1/00023 , H04N1/00034 , H04N1/6008 , H04N1/6019 , H04N1/6033 , H04N2201/0094
摘要： An image processing apparatus according to the present invention includes an image forming unit configured to form an image, a measuring unit configured to measure the formed image, a control unit configured to control execution of a single-color calibration to be performed to correct reproduction characteristics of a single-color formed by the image forming unit based on a measuring result of a single-color image formed with a single-color recording agent and execution of a multi-color calibration to be performed to correct reproduction characteristics of a multi-color image formed by the image forming unit based on a measuring result of a multi-color formed with a plurality of recording agents, and a selection unit configured to select whether to cause the control unit to perform the multi-color calibration after completing the single-color calibration or cause the control unit to perform any one of the single-color calibration and the multi-color calibration.
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公开(公告)号：US20230362312A1
公开(公告)日：2023-11-09
申请号：US18309019
申请日：2023-04-28
发明人： TAKUYA INOUE
CPC分类号： H04N1/40012 , H04N1/6019
摘要： The technique of the present disclosure can achieve processing efficiency and prevention of improper drawing in printing a monochrome representation of color data. In performing discriminability reproducing color conversion processing, a PDL analysis unit determines whether processing involving color change that changes the original color is specified in operator information on a target object for the discriminability reproducing color conversion processing. In a case where processing that changes the original color, such as ROP or α-blending, is specified for the target object, the discriminability reproducing color conversion processing for the page is canceled and switched to all-color uniform color conversion processing. This enables both of efficient discriminability reproducing color conversion and prevention of improper drawing.
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公开(公告)号：US20190068874A1
公开(公告)日：2019-02-28
申请号：US15692924
申请日：2017-08-31
申请人： NCR Corporation
CPC分类号： H04N5/23222 , G06K9/4652 , H04N1/60 , H04N1/6019 , H04N1/6083 , H04N9/646
摘要： One embodiment, in the form of a method, includes capturing at least one image with an imaging device of a machine vision device. The at least one image is captured within an environment within which the machine vision device is deployed. This method then queries a color scheme model based on the captured at least one image to identify a color scheme to utilize within the machine vision device and may subsequently implement the identified color scheme on the machine vision device for processing images captured by the imaging device.
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6.发明申请公开(公告)号：US20180247608A1
公开(公告)日：2018-08-30
申请号：US15442259
申请日：2017-02-24
申请人： ATI TECHNOLOGIES ULC
发明人： Yuxin CHEN
CPC分类号： G09G5/06 , G06T11/001 , G09G2320/0666 , H04N1/6019
摘要： A data segmenter is configured to determine indices using numbers of most significant bits (MSBs) of fractional values of floating-point representations of component values of an input color that are selected based on exponent values of the floating-point representations. The component values are defined according to a source gamut. The data segmenter is also configured to determine offsets associated with the indices using subsets of the fractional values. An interpolator configured to map the input color to an output color defined according to a destination gamut based on a location in a three-dimensional (3-D) look up table (LUT) indicated by the indices and offsets.
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公开(公告)号：US20180234591A1
公开(公告)日：2018-08-16
申请号：US15748126
申请日：2016-07-22
发明人： Takashi Ochiai , Shoei Moribe
CPC分类号： H04N1/6019 , B41J2/21 , B41J2/525 , H04N1/46 , H04N1/60 , H04N1/6097
摘要： An image processing apparatus according an aspect of the present disclosure converts image signals indicating an image to output signals including signals corresponding to individual color components that an output device deals with by interpolation processing using a look-up table. The apparatus includes a first conversion unit and at least one second conversion unit. The first conversion unit converts the image signals to image signals corresponding to linearity of the signals corresponding to the individual color components. The at least one second conversion unit converts the image signals converted by the first conversion unit to the output signals by the interpolation processing.
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公开(公告)号：US10027853B2
公开(公告)日：2018-07-17
申请号：US15845411
申请日：2017-12-18
CPC分类号： H04N1/6019 , G03G15/0863 , G06K15/02 , H04N1/00538
摘要： A printer cartridge includes a memory device and at least one compressed color table stored on the memory device. A compressed color table includes a losslessly compressed neutral axis, a number of nodes that correspond to seed color table nodes and a number of delta nodes that correspond to a number of delta tables. The number of delta tables indicate differences between interpolated color table nodes and corresponding actual color table nodes.
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公开(公告)号：US20180152597A1
公开(公告)日：2018-05-31
申请号：US15823764
申请日：2017-11-28
发明人： Hideaki KASAHARA
CPC分类号： H04N1/4076 , H04N1/6019
摘要： A shading correction device includes a reference acquirer that acquires a reference pixel value W in a captured image of a color measurement reference object, a target pixel value acquirer that acquires a pixel value S in a captured image of a measurement target, a bit shift value acquirer that acquires a bit shift value k2 based on the reference pixel value W, a lookup table storing a variable G2 (=2k1/W>>k2) corresponding to W>>k2, and a calculator that reads the variable G2 corresponding to the reference pixel value W and the bit shift value k2 from the lookup table and calculates a shading correction value Rdec of each pixel in the captured image of the measurement target using Expression (5): R dec = ( F · G 2 ) ( k 1 + k 2 ) + B where F = S · ( A - B ) + { W 1 } , G 2 = 2 k 1 W k 2 , ( 5 ) and A, B and k1 are integer constants.
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10.发明申请公开(公告)号：US20180124285A1
公开(公告)日：2018-05-03
申请号：US15788588
申请日：2017-10-19
发明人： Kimimori Eguchi
CPC分类号： H04N1/6019 , H04N1/405 , H04N1/407 , H04N1/4092 , H04N1/58 , H04N2201/0094
摘要： To make it possible for image processing to control the thickness of a character or a line to be applied similarly as long as input image data is the same even in the case where the setting of color conversion processing or density correction processing is changed. An apparatus that forms an image on a printing medium by using a color material, the apparatus including: a first image processing unit configured to perform first image processing to change a density of the color material for an input image; a second image processing unit configured to perform second image processing to control a thickness of a text object or a line object included in the input image; and a setting unit configured to acquire a setting of information representing characteristics of the first image processing and to set a parameter in the second image processing in accordance with the acquired setting, and the second image processing unit controls the thickness of the text object or the line object in accordance with the set parameter.
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