Color Correction Patents (Class 358/518)
  • Patent number: 11523004
    Abstract: An example of an apparatus including a communication interface to receive an image file is provided. The image file represents a scanned image of a output generated by a printing device. The apparatus further includes an identification engine to process the image file with a convolutional neural network model to identify a feature. The feature may be indicative of a potential failure. The apparatus also includes an image analysis engine to indicate a life expectancy of a part associated with the potential failure based on the feature. The image analysis engine uses the convolutional neural network model to determine life expectancy.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 6, 2022
    Assignees: Hewlett-Packard Development Company, L.P., Rochester Institute of Technology
    Inventors: Darrel D. Cherry, Renee J. Jessome, Richard E. Maggard, Daniel Siddall, Yeshwanth Raja, Eli Saber
  • Patent number: 11514280
    Abstract: 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.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: November 29, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masanori Matsuzaki
  • Patent number: 11508071
    Abstract: An image processing device includes an input device which receives image adjustment selections from an associated user interface device. Memory of the device stores a user interface generator, which generates a background adjustment selector for presenting to a user on the user interface device; a background adjustment component which, for each of a plurality of pixels of an input image computes adjusted color values, as a function of at least one of: (a) a background adjustment factor computed for the respective pixel, and (b) a background class derived from the computed background adjustment factor, the background adjustment factor being a function of a background strength of the pixel and a luminance strength of the pixel; and an image output component outputs an output image derived from the adjusted color values for the plurality of pixels. A processor implements the background adjustment component and image output component.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: November 22, 2022
    Assignee: XEROX CORPORATION
    Inventors: David J. Metcalfe, Clara Cuciurean-Zapan
  • Patent number: 11489977
    Abstract: An information processing apparatus includes a processor configured to: receivably display, as options, plural generation conditions each with a different balance among plural effects including gradation and color reproducibility, the plural generation conditions each being a condition for generating a color conversion profile with values in a device-independent color system as input and values of colors in a device-dependent color system including a spot color as output; and generate a color conversion profile based on a generation condition received as an option.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: November 1, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yusuke Izumisawa, Toshihiro Iwafuchi
  • Patent number: 11477347
    Abstract: A color printing system includes a color management service and one or more printing devices. An ink limit is specified for a calibration operation that uses a calibration chart to obtain measurement data. Using the measurement data, a calibration tone reproduction curve (TRC) along with calibration settings is generated. The calibration TRC and the ink limit are stored. For a print job, the calibration is identified and used to retrieve the calibration TRC and the ink limit. The original ICC profile for the calibration TRC also is provided. The ink limit is used to adjust the ICC profile accordingly. The adjusted ICC profile is used for color printing one or more documents for a print job.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: October 18, 2022
    Assignee: Kyocera Document Solutions, Inc.
    Inventor: Javier A. Morales
  • Patent number: 11455130
    Abstract: A method of color mapping color values of an oligochromatic pattern comprising the following steps: determining an image-gamut, in a N-dimensional device independent color system (ND-DICS), of said oligochromatic pattern; wherein said image-gamut comprises said color values of said oligochromatic pattern; and determining a skeleton (500) of said image-gamut; and performing an adaption on said skeleton (500) in said ND-DICS by a set of N-dimensional-transforming steps (30) and determining for points of said skeleton (500), a path in said ND-DICS that corresponds to said adaption; and color mapping said color values, of said oligochromatic pattern, based on said determined paths (35) of said points of said skeleton (500).
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: September 27, 2022
    Assignee: AGFA NV
    Inventor: Marc Mahy
  • Patent number: 11423854
    Abstract: The present application discloses a driving method and driving system of a display panel, and a display device. The driving method includes: converting the first color signal to obtain a first HSV (hue, saturation, value) spatial signal; obtaining a second HSV spatial signal; reducing the minimum value of the first brightness normalized signals according to the second HSV spatial signal to obtain second brightness normalized signals; converting the second brightness normalized signals to obtain a second color signal; and driving the display panel using the second color signal.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: August 23, 2022
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventor: Jianfeng Shan
  • Patent number: 11417267
    Abstract: Various embodiments of the present invention relate to an electronic device for adjusting voltage and an operation method therefor. The electronic device may comprise: a display; and a processor, wherein the processor is configured to: identify first information which relates to the brightness of at least one first content included in a first image layer and is to be displayed using the display, and second information which relates to the brightness of at least one second content included in a second image layer and is to be displayed using the display; adjust the brightness of the second content at least on the basis of a difference between the first information and the second information; and in a state where the second image layer is superimposed on the first image layer including the first content, display the at least one first content, and the second content the brightness of which has been adjusted, using the display. Other embodiments are also possible.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: August 16, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seungkyu Choi, Matheus Farias Miranda, Hanyuool Kim, Taewoong Lee, Dongkyoon Han, Kwangtai Kim, Hyungsup Byeon, Donghyun Yeom
  • Patent number: 11417075
    Abstract: Techniques, devices, and systems to improve detection and security of a displayed image on a screen of a computer device, such as a device, including detection of an object in an environment, where the object has an inverse-colorspace relationship in relation to the colorspace of the environment. A system includes: a first camera device configured to determine a first underlying colorspace corresponding to an environment, a second camera device configured to determine a second underlying colorspace corresponding to either i) an actual change in the environment or ii) a predicted change in the environment, and a computer device configured to determine an inverse colorspace of at least one of i) the first underlying colorspace or ii) the second underlying colorspace and configured to detect an object in the environment based on the inverse colorspace determination.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: August 16, 2022
    Assignee: Capital One Services, LLC
    Inventors: Austin Grant Walters, Jeremy Edward Goodsitt, Fardin Abdi Taghi Abad, Anh Truong
  • Patent number: 11394853
    Abstract: There is provided an image representation method, including: converting a to-be-converted image from a first color space to a second color space; acquiring a target conversion color ratio corresponding to each pixel of the to-be-converted image and including ratios of plural target conversion colors, according to a color ratio allocation table based on the second color space; creating an array corresponding to the pixel according to the target conversion color ratio; calculating an index value corresponding to the pixel according to a position of the pixel in the to-be-converted image, and inputting the index value to the array as a subscript of the array, to acquire an element of the array as a target value corresponding to the pixel; and determining a target conversion color of the pixel according to the target value, to acquire a converted image including the plural target conversion colors.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: July 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanhong Wu, Hanwen Liu, Lijie Zhang
  • Patent number: 11381849
    Abstract: Systems, methods, and apparatuses are described for processing video. Video content comprising a plurality of frames may be received. One or more of luminance pixel data associated with a frame of the plurality of frames and chrominance pixel data associated with the frame may be determined. A viewing parameter associated with playback of the video content may be determined. A contrast sensitivity function (CSF) may be determined based on the frame, the one or more of the luminance pixel data and the chrominance pixel data, and the viewing parameter. A filtered frame may be determined based on the CSF and by applying a filter to a spatial frequency band associated with the frame. The filtered frame may be caused to be output.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 5, 2022
    Assignee: Comcast Cable Communications, LLC
    Inventors: Dan Grois, Alexander Giladi
  • Patent number: 11372899
    Abstract: Disclosed are a method and system for selecting target data. The method of selecting target data may include steps of grouping data included in a database into objects each being a minimum process processing unit based on dependency between tables within the database, setting a selection criterion for target data based on at least one field of the data included in the database, and extracting target data corresponding to the set selection criterion by taking into consideration dependency between tables included in the object.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: June 28, 2022
    Assignee: ARMIQ CO., LTD.
    Inventor: Oxoo Kim
  • Patent number: 11354543
    Abstract: Methods and systems for training and utilizing an artificial neural network (ANN) are provided. In an example method, a computing device can receive an image pair, where a first image of the image pair includes a training image and a second image of the image pair includes a ground truth image. The computing device can provide instances of the first image to a plurality of image filtering modules and determine respective filtered representations of the first image using the plurality of image filtering modules. The computing device can indirectly train an adaptor ANN by applying the adaptor ANN on the respective filtered representations to produce an adapted representation; determining, using a trained colorization ANN, a colorized image from the adapted representation; and updating weights of the adaptor ANN based on a loss function that comprises a difference between the colorized image and the second image of the image pair.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: June 7, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Dongpei Su
  • Patent number: 11335048
    Abstract: A computing system and method for neural network-based image colorization is provided. The computing system obtains a reference color image by selective application of a color effect on a region of interest of an input image and controls a display device to display a first node graph on a Graphical User Interface of an image/video editing application. The first node graph includes a colorization node representing a first workflow for colorization of at least a first object in grayscale images of a first image feed. The computing system selects the reference color image based on a user input and executes the first workflow associated with the colorization node by feeding the reference color image and the first image feed as an input to a neural network-based colorization model. The computing system receives a second image feed comprising colorized images as output of the neural network-based colorization model for the input.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: May 17, 2022
    Assignee: SONY GROUP CORPORATION
    Inventors: Jong Hwa Lee, Moises Tafolla, Praggya Garg, Allison Langley, Gary Lyons, Alexander Stoneham, Seunghan Kim, Luis Vasconcelos
  • Patent number: 11301752
    Abstract: Weights of a neural network are initialized by programming a plurality of unit cells. A given one of the plurality of unit cells includes one or more static random-access memory cells and a digital to analog converter device. The digital to analog converter device is configured to receive one or more outputs produced by respective ones of the one or more static random-access memory cells. An amount of error associated with the initialized weights is determined. The initialized weights are adjusted in response to the amount of error exceeding a threshold amount of error.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: April 12, 2022
    Assignee: International Business Machines Corporation
    Inventor: Effendi Leobandung
  • Patent number: 11267273
    Abstract: A common profile is prepared that, in a device-independent first color system, converts image data of a color space that is representable by the first color system into image data of a color space that is commonly representable by the plurality of printing devices, and first image data representing an image to be printed is converted into second image data by using the common profile, where the image is represented by the first color system. Then, the second image data is converted into third image data by using an output profile, where the third image data is image data of a second color system that depends on a specific printing device designated from among a plurality of printing devices and the output profile is unique to the designated specific printing device. The third image data thus obtained is output to the designated specific printing device and printed.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: March 8, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Katsuyuki Tanaka
  • Patent number: 11212415
    Abstract: Disclosed is an image processing apparatus including: a derivation unit configured to derive a target luminance characteristic based on a viewing condition of an image and a print luminance characteristic predicted based a reflection characteristic corresponding to data thereon; a unit configured to generate print image data on an image by converting input image data by using a tone conversion characteristic that is set based on these characteristics, in which the derivation unit derives, in a case where a reproduction range of an illumination intensity in the print luminance characteristic is different, the target luminance characteristic so that a liner area of an output luminance in a case where the reproduction range is relatively large becomes large.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: December 28, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomokazu Yanai, Hisashi Ishikawa, Satoshi Wada, Takeshi Yazawa, Tetsuya Suwa, Hidetsugu Kagawa
  • Patent number: 11182112
    Abstract: Example embodiments relate to creating ICC printer profiles with unorthodox ink limits. A printing device may initially print a color profile chart represented by color combinations that are equal to or below an ink limit and generate a first ICC profile based on the color profile chart. The first ICC profile uses a first color set to map input colors of a source color space to output colors of a destination color space. At least one color of the first color set, however, may be represented by a color combination that exceeds the ink limit and thus the printing device may determine a second color set based on the first color set. For the second color set, each color is represented by a color combination that is equal to or below the ink limit. A second ICC profile may be generated to use the second color set.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 23, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Michael M. Chang, Javier A. Morales
  • Patent number: 11151691
    Abstract: Systems and methods are provided for image scaling with enhanced compression. One embodiment is a processor that receives an instruction to scale an input image to create an output image that is higher in resolution, and analyzes rows of the input image in sections according to a run length of a predetermined number of consecutive pels. For each run length of consecutive pels, the processor determines a cluster of adjacent pels within the run length having a color intensity value within a threshold range, and determines a replacement intensity value for the cluster based on at least one color intensity value of a pel in the cluster. The processor creates the output image by: upscaling the cluster by the scale factor to multiply a number of pels in the cluster, and changing an intensity value of all pels in the cluster to the replacement intensity value.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: October 19, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Larry M Ernst
  • Patent number: 11146710
    Abstract: To make it possible to specify a color space of image data even in a case where color space identification information is not attached to the image data. The image processing system that handles image data whose color spaces are different comprises a learning unit configured to perform machine learning by taking image data and metadata thereof as input data and color space identification information as supervised data. In the machine learning, a learning model is optimized so that a deviation between the color space predicted from the input data and the color space specified by the color space identification information becomes a minimum.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: October 12, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masao Maeda
  • Patent number: 11138765
    Abstract: Systems and methods are disclosed for non-linear color correction. The method including receiving an input image from an image sensor, converting the input image from a red, green, blue (RGB) color space format to an alternate color space format, determining localized hue correction parameters for a selected color in the alternate color space, determining localized saturation correction parameters for a selected hue in the alternate color space, applying the localized hue correction parameters and the localized saturation correction parameters to the input image to generate an output image and storing, displaying, or transmitting the output image based on at least the localized hue correction parameters and the localized saturation correction parameters.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: October 5, 2021
    Assignee: GoPro, Inc.
    Inventors: Guillaume Matthieu Guérin, Julien Caron
  • Patent number: 11119035
    Abstract: A computer system for identifying coating texture effects initiates a set of colorant decision points. The colorant decision points identify a probability that an effect pigment type is present within a target coating. The computer system calculates in parallel each colorant decision point within the set of colorant decision points. Each colorant decision point provides a probability that a different effect pigment type is present within the target coating. The computer system then calculates a set of final colorant probabilities. Each final colorant probability within the set of final colorant probabilities is calculated by combining a unique subset of probabilities calculated by the first set of colorant decision points. Additionally, each final colorant probability indicates a probability that an associated colorant is present within the target coating.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: September 14, 2021
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Alison M. Norris, Paul Beymore
  • Patent number: 11115637
    Abstract: There is provided an image processing apparatus comprising. An identification unit identifies a target color that a pixel of a shot image corresponding to an object having a specific color is to have as a result of white balance processing performed on the shot image. A determination unit determines a target region of a virtual light source in the shot image. An image processing unit performs image processing for adding an effect of virtual light irradiation by the virtual light source to the target region. A control unit controls a color of the virtual light source such that a color close to the target color approaches the target color in the target region.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: September 7, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kotaro Kitajima
  • Patent number: 11106343
    Abstract: Disclosed are systems, methods, and computer-readable storage media to perform an interactive image recolorization process. The method includes receiving user input including a stroke drawn on an image presented on a client device. The stroke comprises a user-specified color. The method further includes determining a region of interest in the image. The method further includes recolorizing the region of interest on the image based on the user-specified color and causing presentation of a result of the recolorization on the client device.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 31, 2021
    Assignee: Snap Inc.
    Inventors: Kun Duan, Yunchao Gong, Nan Hu
  • Patent number: 11093808
    Abstract: There is provided a color matching method including: step of, for each of segmented regions obtained by dividing a region of an entire color chart into a plurality of regions so that boundaries of the segmented regions are parallel to the feeding direction of the base material, determining average color difference between colorimetric values of a color chart outputted from the reference device and colorimetric values of a color chart outputted from the adjustment target device; a step of, taking a segmented region whose average color difference is minimum as the reference region, calculating difference values of the average color differences between the reference region and each of the segmented regions other than the reference region; and a step of specifying a segmented region whose difference value is equal to or greater than a predetermined threshold value as an abnormal region in which abnormality of a head is occurring.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: August 17, 2021
    Assignee: SCREEN HOLDINGS, CO., LTD.
    Inventor: Hiroki Endo
  • Patent number: 11079724
    Abstract: An electronic device according to various embodiments of the present invention may comprise: a camera module; a communication module for communicating with a second electronic device; and a processor for photographing a first screen displayed on a display of the second electronic device and an external background of the second electronic device by using the camera module, and acquiring a second screen for the second electronic device by using the first screen and the external background.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: August 3, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-Jin Seo, Roman Ainbound
  • Patent number: 11070830
    Abstract: A decoding method including decoding one standard dynamic range (SDR) luminance component and two SDR chrominance components from a bitstream produced by an encoder and color converting the SDR luminance component and the two decoded SDR chrominance components. A dynamic expansion function is applied on the color converted SDR luminance component to obtain a high dynamic range (HDR) luminance component, wherein the dynamic expansion function is the inverse of a dynamic reduction function applied on the HDR luminance component on the encoder's side. A color transfer operation is applied on the color converted SDR chroma components to obtain an HDR chrominance component and an HDR chrominance component in XYZ color space. A color conversion matrix is applied on the HDR luminance component, the HDR chrominance component and the HDR chrominance component to obtain an HDR picture in RGB color space.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: July 20, 2021
    Assignee: INTERDIGITAL MADISON PATENT HOLDINGS, SAS
    Inventors: Fabrice Leleannec, Franck Galpin, Sébastien Lasserre
  • Patent number: 11057542
    Abstract: Certain examples described herein relate to color calibration. In certain cases, a plurality of test patches are printed with a printing system, the test patches corresponding to a set of initial color sample points and a set of test colors. Color properties of the printed test patches are measured. In certain examples, a gamut descriptor is identified from a plurality of gamut descriptors using the color properties of the test colors. Each gamut descriptor defines a set of up-sampling parameters for a particular color gamut. Measured color properties for the initial color sample points are up-sampled using the set of up-sampling parameters for the identified gamut descriptor to generate up-sampled data. In certain cases, the up-sampled data is used to generate a color mapping to be applied to print job data received by the printing system.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: July 6, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hector Gomez Minano, Peter Morovic, Jan Morovic
  • Patent number: 11050985
    Abstract: Disclosed in the present invention are an image purple fringe eliminating system, method, a computer-readable storage medium, and a photographing device. The system traverses an image, calculates a hue of a pixel, counts a ratio of purple hue to adjacent purple hue pixels in the image, and calculates a dynamic purple fringe detection threshold; creates a mask with the same size as the image acquired by an image acquisition module, and detects the pixels that fall into a purple fringe area; corrects the detected pixel falling into the purple fringe area, correcting both a red channel intensity value and a blue channel intensity value of the pixels within the purple fringe region using a green channel intensity value. The invention can automatically correct the purple fringe of the image, improve the image shooting quality and the user experience.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 29, 2021
    Assignee: ARASHI VISION INC.
    Inventors: Jinlin Cai, Jingkang Liu
  • Patent number: 11030972
    Abstract: An electronic device is disclosed. The electronic device includes a sensor, a storage unit for storing a color matching function (CMF), which has been pre-defined according to characteristics of a light source, and a processor for acquiring spectral information regarding at least one pixel of a display panel by using a sensor, for acquiring color stimulus values regarding at least one pixel on the basis of the stored CMF and the acquired spectral information, and for acquiring a correction coefficient regarding at least one pixel of the display panel on the basis of the acquired color stimulus values.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Oh-jae Kwon, Seung-jin Baek, Ho-sik Sohn, Ho-young Lee, Kil-soo Jung
  • Patent number: 10965835
    Abstract: An image forming apparatus can prevent generation of correction data without setting a proper test original. A mat is closed for pressing an original on a platen. An opening/closing sensor detects a closed state and an open state of the mat. A density correction section corrects image data based on a correction condition. A printer forms an image based on the image data. A CPU controls the printer to form a pattern on a sheet, controls a CCD sensor to acquire read data concerning an image of the original according to user instruction for the CCD sensor to read the original, and generates the correction condition based on the read data. When the user instruction is given, if the open state of the mat is not changed to the closed state, the CPU displays a screen prompting the user to place the sheet on the platen.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: March 30, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Daisuke Nagao
  • Patent number: 10942690
    Abstract: A color shift security feature is provided. In at least one form, a clear colorant is used to add content to a document to provide a visual indication if the document is printed on a printer with self-limiting behavior. In this manner, in at least one form, it can be determined if a document is authentic, secure and/or authorized.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: March 9, 2021
    Assignee: XEROX CORPORATION
    Inventor: Mark A. Smith
  • Patent number: 10922857
    Abstract: An electronic device and a method of controlling the electronic device are provided. The electronic device includes a display and at least one processor. The at least one processor receives input information for generating at least part of a first object, recognizes the first object based on the received input information, and controls a display to display a color obtained from the first object and an image associated with the first object.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 16, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwa-Jun Lee, Chae-Kyung Lee
  • Patent number: 10922799
    Abstract: An image processing method includes the steps of acquiring a training image and a correct image, inputting the training image into a multilayer neural network to generate an output image, performing a gamma correction for each of the correct image and the output image and calculating an error between the correct image after the gamma correction and the output image after the gamma correction, and updating a network parameter of the neural network using the error.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 16, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Norihito Hiasa
  • Patent number: 10921740
    Abstract: An image forming apparatus includes a storing unit that stores information associated with a sheet type of a sheet and a sheet feed source, of a plurality of sheet feed sources, a selection unit that selects a sheet feed source from the plurality of sheet feeding sources based on at least a sheet type designated by a job and the stored information, and a feeding unit that feeds a sheet from the selected sheet feed source. The image forming apparatus also includes an image forming unit that forms an image on the sheet fed by the feeding unit, and a detector that detects a sheet type of the sheet fed from one of the plurality of sheet feed sources by the feeding unit. The storing unit stores the sheet type detected by the detector as the information indicating the sheet type of sheet stored in the sheet feeding source.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: February 16, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hidemi Sasaki
  • Patent number: 10917542
    Abstract: A color conversion information generation apparatus converts a first coordinate value into a second coordinate value in a second color space by using first conversion information, acquires a colorimetric coordinate value in a first color space indicating a colorimetric result of an image output by a first output apparatus according to the second coordinate value, converts the second coordinate value into a third coordinate value by using second conversion information, determines a target coordinate value indicating a target color in the first color space based on the third coordinate value and a difference between the first coordinate value and the colorimetric coordinate value, retrieves a fourth coordinate value satisfying a condition that a color difference between a fifth coordinate value in the first color space obtained by converting a fourth coordinate value in the second color space by using the second conversion information and the target coordinate value is smaller than a color difference between th
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: February 9, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Mitsuhiro Yamashita
  • Patent number: 10909663
    Abstract: A method of processing a digital image, the method comprising receiving a digital image, modifying each row of pixel colour values and then each column of modified pixel colour values or vice versa, represented as an array X of pixel or modified pixel colour values x(i), by calculating each value y(i) of an array Y as a function at least of an exponentially weighted moving average a(i) of the array X, calculated in ascending order of the array X value indices, and an exponentially weighted moving average b(i) of the array X, calculated in descending order of the array X value indices, or an exponentially weighted moving average b?(j) of an array X? containing the values of the array X in reverse order, calculated in ascending order of the array X? value indices, where i, j are the array value indices, wherein 0?i<N, j=N?1?i, N is the array size, with replacement of x(i) with y(i).
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 2, 2021
    Inventors: Danylo Kozub, Iurii Shapoval
  • Patent number: 10908543
    Abstract: An image forming apparatus includes an input device, an image forming device, and a control device. The control device includes a processor, and acts, when the processor executes a control program, as a controller that, upon receipt of an instruction to form a source document image on a first face of a plurality of recording media through the input device, causes the image forming device to form the source document image on the first face of the plurality of recording media, designates a recording medium on which a see-through prevention image, constituted of a predetermined pattern, is to be formed, out of the plurality of recording media, and causes the image forming device to form the see-through prevention image only on a second face, opposite to the first face, of the recording medium designated.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: February 2, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Yasufumi Inoue
  • Patent number: 10904499
    Abstract: A reference-color-list generating unit of a server generates a reference color list on the basis of reference color lists stored in a CLDB, at a timing reported from a program-information management unit. An S-metadata generating unit generates S metadata from TV program information stored in an RVDB and the reference color list. A C-metadata generating unit of a user terminal generates C metadata from individual information of each frame constituting a captured image and the reference color list. An authenticity determining unit determines whether to permit or deny check-in by a user on the basis of the obtained C metadata, the S metadata extracted by the CMDB, and program detail information managed by the program-information management unit.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: January 26, 2021
    Assignee: CYGAMES, INC.
    Inventor: Shuichi Kurabayashi
  • Patent number: 10896635
    Abstract: Disclosed is a primary color conversion method, which may expand primary color signals that are applicable to a display device. The primary color conversion method includes: acquiring color coordinates and a brightness value of a first color in a first color gamut having M primary colors according to gray-scale values of the M primary colors corresponding to the first color; and mapping the color coordinates and the luminance value of the first color in the first color gamut to color coordinates and a brightness value of a second color corresponding to the first color in a second color gamut having N primary colors. 3?M, 3?N, M is different from N, and M and N are positive integers.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: January 19, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanhui Xi, Bin Dai, Xiaomang Zhang, Yan Sun, Kuanjun Peng, Haijun Niu, Xiaolong Li, Donghui Wang
  • Patent number: 10897557
    Abstract: An image forming apparatus includes circuitry and a reading device. The circuitry is configured to generate a plurality of patterns in different colors to form the plurality of patterns on a recording medium. The reading device is configured to read the plurality of patterns and a plurality of blank areas adjacent to the plurality of patterns from the recording medium. The circuitry is configured to detect a reading error of the plurality of patterns according to read values of the plurality of patterns and the plurality of blank areas and perform color calibration on a reference color by use of the read values of the plurality of patterns.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: January 19, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Manabu Komatsu
  • Patent number: 10893192
    Abstract: An image pickup apparatus, including: a common processing unit including a fixed level signal generating unit configured to generate a fixed level signal that have discrete values in a color space and an address in association with each other and an image processing unit configured to perform image processing on the fixed level signal to generate grid data under the condition set by the user or the condition automatically set by the image pickup apparatus; and an individual processing unit including a three-dimensional lookup table storage unit configured to store a three-dimensional lookup table in which the address and the grid data are associated with each other and output the grid data corresponding to the address of an image pickup signal and an interpolation processing unit configured to perform interpolation processing using the grid data and the image pickup signal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: January 12, 2021
    Assignee: JVCKENWOOD Corporation
    Inventor: Toshihide Kobayashi
  • Patent number: 10855962
    Abstract: A projector includes a measurement unit and a correction parameter generation unit. The measurement unit measures a color of image light of the image formed on a projection surface in terms of a plurality of colors constituting an RGB color system and a Z value in an XYZ color system. The correction parameter generation unit generates a correction parameter based on a first measurement value and a second measurement value. The first measurement value measured by the measurement unit is obtained by converting a measurement value of the color in the RGB color system into the color in the XYZ color system. The second measurement value measured by the measurement unit is a value in the XYZ color system. The measurement unit includes an optical filter having transmittance characteristics corresponding to spectral characteristics of blue light, in a wavelength range of a color light in the RGB color system.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 1, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Yuichiro Matsumoto
  • Patent number: 10853972
    Abstract: An apparatus for processing an image includes a memory and a processor coupled to the memory. The processor is configured to determine a base hue value based on a state of distribution of a first hue value of each pixel of at least one image. The processor is configured to convert the first hue value of each pixel of the at least one image into a second hue value based on the base hue value. The processor is configured to calculate a difference in the second hue value between pixels included in each of a plurality of pixel pairs set in at least one feature region in the at least one image. The processor is configured to calculate a local feature amount of each of the at least one feature region based on the difference in the second hue value.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 1, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Masahiko Sugimura, Yasutaka Moriwaki, Hiroaki Takebe, Takayuki Baba
  • Patent number: 10839271
    Abstract: A chromaticity value, which is a measurement result for a sheet to be measured, is acquired by using a sensor in which a light source has fixed characteristics, a condition under which the measurement result is acquired by the sensor is designated, an optical brightening agent amount contained in the sheet is determined by using a spectral reflectance obtained by performing measurement on the sheet with use of the sensor, and the acquired chromaticity value is converted by using the designated condition and information about the determined optical brightening agent amount.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohisa Itagaki, Takaaki Yano, Aya Ito
  • Patent number: 10841434
    Abstract: An image forming system includes an image forming device configured to form an image on a recording medium, a reading device configured to read the image formed on the recording medium by the image forming device, and circuitry. The circuitry is configured to control the reading device; calculate a density of each predetermined unit area of the read image; determine whether the read image includes a region satisfying a predetermined density condition based on the calculated density; and output an image of a first region of the read image not satisfying the predetermined density condition, an image of a second region satisfying the predetermined density condition, and a visual representation associated with the second region in response to a determination that the read image includes the second region.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: November 17, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Dai Kurabayashi
  • Patent number: 10800184
    Abstract: A density correction value determining method of correcting a printing density in a printing apparatus that performs printing by ejecting ink from a plurality of nozzles onto a medium, includes printing a test pattern by ejecting ink from the plurality of nozzles, acquiring captured image data by imaging printed test pattern, calculating a first density correction value for bringing the printing density closer to a predetermined reference value set when one raster is formed by ejecting ink from each single nozzle of the plurality of nozzles based on a density of acquired captured image data, and calculating a second density correction value for bringing the printing density closer to a predetermined reference value set when one raster is formed by combining different nozzles of the plurality of nozzles based on the calculated first density correction value.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: October 13, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Jun Hoshii
  • Patent number: 10777584
    Abstract: A display device includes a signal line driver, provided in a peripheral area of a display panel, that outputs video signals, a signal selection circuit that distributes the video signals output from the signal line driver among signal lines connected to pixels, and a plurality of connection lines that make connection between the signal line driver and the signal selection circuit, and a shield layer made of the same material as second transparent electrodes that are pixel electrodes on a layer above the plurality of connection lines in an area excluding the signal selection circuit.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: September 15, 2020
    Assignee: Japan Display Inc.
    Inventors: Koji Yamamoto, Hiroyuki Abe, Naoki Miyanaga
  • Patent number: 10750173
    Abstract: To have a much better usable pragmatic manner of HDR video encoding and decoding, the inventor invented a high dynamic range video decoder (500) arranged to receive an encoding (Im_COD) of a high dynamic range video and to decode and output a set of temporally successive images (Im_RHDR) comprising: An input (502) to receive three weight values (kRY, kGY, kBY); A video decoder (501) arranged to decode the encoding (Im_COD) into an intermediate image (Im_RLDR) being in a Y?CbCr color representation; A brightness index calculation unit (503) arranged to calculate for each pixel of the intermediate image (Im_RLDR) a brightness index (J?) being defined as J?=Y?+MAX{kRY*(R??Y?), kGY*(G??Y?), kBY*(B??Y?)}; A brightness mapper (505) arranged to receive a specification of at least one one-dimensional function F_ct, and to apply it with the brightness index (J?) as input, to obtain an output brightness index (J*); A multiplication factor calculation unit (506) arranged to calculate a multiplicative factor (g) being eq
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: August 18, 2020
    Assignee: Koninklijke Philips N.V.
    Inventor: Jeroen Hubert Christoffel Jacobus Stessen
  • Patent number: 10721365
    Abstract: An image reading device includes a reader, an opposing member, and circuitry. The reader is configured to read an image of an object to be conveyed. The opposing member has a plurality of opposing portions that include reference surfaces selectively switchable to be placed at a reading position of the reader. The reference surfaces include two or more identical reference surfaces. The circuitry is configured to determine whether an evaluation reading value of reading values read by the reader on each of the two or more identical reference surfaces is within a prescribed range and perform correction operation of the image reading device with the evaluation reading value within the prescribed range out of the reading values of the two or more identical reference surfaces.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: July 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroki Terauchi