Color Correction Patents (Class 358/518)
  • Patent number: 10318801
    Abstract: An image processing apparatus includes a first extraction unit, a second extraction unit, and a third extraction unit. The first extraction unit extracts a first area in an image that includes plural document images, the first area having low-frequency characteristics. The second extraction unit extracts a second area in the image, the second area having high-frequency characteristics. The third extraction unit extracts areas of the document images by combining the first area and the second area in accordance with whether a background of the image is white.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: June 11, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Masakazu Fukunaga
  • Patent number: 10311561
    Abstract: The image inspection method includes: a step of acquiring data of an inspection image obtained by capturing an image of a recorded matter recorded by an image recording system that performs a compensation process of compensating for a defect caused by a failure in an image formation element, using an imaging apparatus; a step of acquiring data of a reference image; and a step of comparing the data of the inspection image with the data of the reference image to determine whether there is a defect at each position of the inspection image. The defect detection step includes a process that makes a defect detection performance different in a compensation application region and a compensation non-application region other than the compensation application region, on the basis of compensation position information of the failure in the image formation element to which the compensation process has been applied.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 4, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Masayuki Ukishima
  • Patent number: 10290280
    Abstract: The present invention relates to a method of displaying colors on an electronic visual display. The colors correspond to a principal color and one or more auxiliary colors each of which is defined by color co-ordinates within a color space. When one or more of the colors is out of the gamut of the display, adjustments are made to the co-ordinates of each color to allow adjusted colors to be displayed that preserve the color differences between the principal color and each of the one or more auxiliary colors.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: May 14, 2019
    Assignee: TINTOMETER GMBH
    Inventors: Nicholas J. Barnes, Peter J. Clarke
  • Patent number: 10277782
    Abstract: A color conversion table generation device, that generates a color conversion table defining a correspondence relationship between a coordinate value of input color space and a use amount of a plurality kinds of color materials, includes a boundary position setting unit that receives selection of setting of a boundary position at which use of a specific color material included in the plurality kinds of color materials is started or ended in a predefined axis provided in the input color space, a usability determination unit that determines whether the specific color material is to be used at a grid point defining the correspondence relationship or not, based on the boundary position in the predefined axis, and a use amount setting unit that sets a use amount of the specific color material at the grid point in a case where it is determined that the specific color material is to be used.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: April 30, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Katsuyuki Tanaka, Takashi Ito
  • Patent number: 10262632
    Abstract: A data processing system 1 comprises a display controller operable to provide to a display a compressed version of an output surface to be displayed that has been compressed using a lossy compression scheme, and one or more processing stages operable to provide a surface or surfaces that are to be used when forming an output surface to be displayed. At least one of the one or more processing stages is operable to output one or more regions of the surface or surfaces that it provides to be used when forming an output surface to be displayed in a compressed form using a lossy compression scheme.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: April 16, 2019
    Assignee: Arm Limited
    Inventor: Daren Croxford
  • Patent number: 10248528
    Abstract: A system monitoring method and apparatus comprises: collecting periodically status indicator data of a monitored system to generate a status indicator data sequence; selecting predetermined pieces of status indicator data according to data collecting time in a reverse chronological order; determining a category from predetermined categories, the predetermined pieces of status indicator data belonging to the determined category; selecting, from the historical status indicator data, status indicator data belonging to the determined category and obtained in a collection period as characteristic data of the determined category; calculating a predicted value of a status indicator of the system at a predicting moment using the characteristic data; and determining whether the system is abnormal, based on a difference between the calculated predicted value and a true value of the status indicator of the system collected at the predicting moment.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: April 2, 2019
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Dong Wang, Bo Wang, Beibei Miao, Yun Chen, Xuanyou Guo, Xianping Qu
  • Patent number: 10248894
    Abstract: A printing system is disclosed. The printing system includes an interpreter module to generate Tagged Object Bit-plane data corresponding to drawing objects for each colorant of a device color space during rasterization a print job data and a common buffer to store the Tagged Object Bit-plane data for each colorant.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: April 2, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Edward Chatcavage, Justin James Coulter
  • Patent number: 10244146
    Abstract: A computer-implemented method for color correction includes obtaining a noise evaluation image by adding noise to a noise-free image, color correcting the noise evaluation image using a plurality of color correction parameters, color correcting the noise-free image using the plurality of color correction parameters, determining a noise amplification metric at least by comparing the corrected noise evaluation image with the corrected noise-free image, and adjusting the plurality of color correction parameters based on the noise amplification metric.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: March 26, 2019
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wei Chen, Zisheng Cao
  • Patent number: 10242287
    Abstract: An image processing apparatus includes a detection unit configured to detect at least one identical object or at least one object of an identical type from images captured by a plurality of imaging apparatuses, a selection unit configured to select at least one object from among at least one detected object based on color information of each object, and a determination unit configured to determine color correction information related to a plurality of the imaging apparatuses based on color information of at least one selected object. The image processing apparatus enables restricting the degradation of the color matching accuracy.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: March 26, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hirotaka Shiiyama, Masahiro Matsushita, Hideki Sorakado
  • Patent number: 10218880
    Abstract: A method for image processing acquires a digital image as a collection of image pixel data and identifies the acquired digital image as a faded image. One or more statistical values is calculated to characterize the distribution of digital image values over a range for a first color channel. The range of values for each of the color channels is expanded. At least first and second non-overlapping sub-ranges of the expanded range of values are identified for each of the color channels, wherein a boundary between the sub-ranges is defined according to the calculated statistical value for the first color channel. The first sub-range is expanded and the second sub-range for each of the color channels compressed to form a color balanced image that is displayed.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: February 26, 2019
    Inventor: John R. Fredlund
  • Patent number: 10164458
    Abstract: According to one embodiment, a given tile, made up of pixels or samples, may be of any shape, including a square shape. These pixels may contain colors, depths, stencil values, and other values. Each tile may be further augmented with a single bit, referred to herein as a render bit. In one embodiment, if the render bit is one, then everything is rendered as usual within the tile. However, if the render bit is zero, then nothing is rasterized to this tile and, correspondingly, depth tests, pixel shading, frame buffer accesses, and multi-sampled anti-aliasing (MSAA) resolves are not done for this tile. In other embodiments, some operations may be done nevertheless, but at least one operation is avoided based on the render bit. Of course, the render bits may be switched such that the bit zero indicates that everything should be rendered and the bit one indicates more limited rendering.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: December 25, 2018
    Assignee: Intel Corporation
    Inventors: Tomas G. Akenine-Moller, Carl J. Munkberg, Franz P. Clarberg
  • Patent number: 10110756
    Abstract: An image processing apparatus includes a printing instruction unit which instructs printing a plurality of times in which the same print data is printed on a plurality of media; an obtaining unit which obtains the number of printing failures in the printing of a plurality of times; a display unit which displays the number of defective items (low quality), and the number of defective items (incomplete items) by default, and with which it is possible to select whether or not to perform reprinting; and a CPU which controls the printing instruction unit so as to perform reprinting when reprinting is selected in the display unit.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: October 23, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Takahiro Mano
  • Patent number: 10096128
    Abstract: Provided is a change degree deriving device including a receiving unit that receives an image obtained by capturing a known color body and an object while focusing on the object, the known color body including plural of color samples, each of which has a known color numerical value, and a detection image, and a detecting unit that detects a focus deviation of the color samples in the image, based on the detection image.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: October 9, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shinji Sasahara, Hitoshi Ogatsu, Junichi Matsunoshita, Ken Ogino
  • Patent number: 10078290
    Abstract: An image forming apparatus that enhances measurement accuracy of a pattern image and improves quality of a printed image. Light emitted from a light emission unit based on a first measurement condition is reflected from an image bearing member, and first information is generated based on a measurement result of the image bearing member. Second information is determined based on the first measurement condition, the first information, and a second measurement condition. Light is emitted based on the first measurement condition when a first measurement image is measured, and an image forming condition is generated based on a measurement result of the first measurement image and the first information. Light is emitted based on the second measurement condition when a second measurement image is measured, and the image forming condition is generated based on a measurement result of the second measurement image and the second information.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: September 18, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Tomii
  • Patent number: 10063750
    Abstract: An image forming apparatus includes a table generating unit. The table generating unit determines whether a target-value Voronoi region and a measured-value Voronoi region are identical or not. The table generating unit sets an output color value associated with a print position where the target-value Voronoi region and the measured-value Voronoi region are identical in the second color conversion table as the output color value associated with a specific input color value in the first color conversion table. The table generating unit sets the output color value associated with the print position where the target-value Voronoi region and the measured-value Voronoi region are different in the second color conversion table as a color value that is a color value in the hue plane and is different from the output color value associated with the specific input color value in the first color conversion table.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: August 28, 2018
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Etsuko Manda
  • Patent number: 10061547
    Abstract: A relay device may receive first information and second information from the image processing device. The relay device may select one of a first processing and a second processing based on at least one of the received first information and the received second information. The relay device may send, to an image processing device, first instruction information causing the image processing device to execute the first processing when the first processing is selected. The relay device may send, to the image processing device, second instruction information causing the image processing device to execute the second processing when the second processing is selected. The relay device may receive the first image data according to the first instruction information or the second instruction information. The relay device may generate second image data by executing the selected image processing on the first image data that has been received.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: August 28, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Ken Saito, Tomohiko Hasegawa
  • Patent number: 10063748
    Abstract: An apparatus includes at least one processor configured to function as a dividing unit configured to divide at least part of an image, which is obtained by reading an original using a scanning device, into a plurality of processing blocks, a determination unit configured to determine an attribute value that specifies a processing content of one or more pixels in each processing block, of the plurality of processing blocks, divided by the dividing unit, in accordance with a coordinate in the original to which each processing block, of the plurality of processing blocks, corresponds, and an image processing unit configured to execute an image process to correct an input pixel value of a pixel in image data that represents the image and to output the corrected pixel value of the pixel, based on the attribute value determined by the determination unit.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: August 28, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Rie Kajihara, Akitoshi Yamada, Mitsuhiro Ono, Fumitaka Goto
  • Patent number: 10056055
    Abstract: Apparatus and methods for mapping video signal parameters such as tone and color may be applied at various points in a video generation and delivery pipeline. apparatus may be configured to control mappings based on a range of inputs which may include one or more of: ambient conditions, user inputs, control information, adaptation models. Apparatus and methods may be applied to display video or other images so as to preserve a creative intent embodied in video or other image data.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: August 21, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Helge Seetzen, Robin Atkins, Neil W. Messmer, Gerwin Damberg
  • Patent number: 10051255
    Abstract: An image processing method to obtain a high sense of depth or high stereoscopic effect for an image and a display device utilizing the method are provided. Image data of an image is separated into image data of a plurality of objects and a background. A feature amount is obtained from the image data of each object, so that the objects are identified. The relative distance between viewer's eye and any of the objects is determined by the data of the sizes of the objects in the image and the sizes of the objects stored in the database. The image data of each object is processed so that an object with a shorter relative distance is enlarged. The image data of each object after image processing is combined with the image data of the background, so that a sense of depth or stereoscopic effect of an image is increased.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: August 14, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Jun Koyama, Mai Akiba
  • Patent number: 10033908
    Abstract: Under-color removal of show-through background from a scanned original, so as to retain chromatic highlights of the scanned image of the original. An under-color level defines a value at which signals having a higher luminance than a luminance of the under-color level are converted into white. Before under-color removal, and based on the scanned image of the original, an achromatic color is converted into a color closer to white than the under-color level for an achromatic color closer whose luminance falls in a specified range lower than the luminance of the under-color level; and a chromatic color is converted into a chromatic color having a lower luminance than the luminance of the under-color level for a chromatic color in the specified range. Under-color removal of the converted achromatic and chromatic colors is thereafter applied using the under-color level, by which signal values having a higher luminance than a luminance of the under-color level are converted into white.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: July 24, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Asako Sugahara
  • Patent number: 10032261
    Abstract: An aspect of present principles is directed to methods, apparatus, systems and computer readable media for image processing. The image processing may include receiving a standard dynamic range (SDR) image or a receiver for receiving a standard dynamic range (SDR) image. It may further include determining an over-exposed region of the SDR image and determining a corrected luminance value for at least a pixel of the over-exposed region, or a processor configured to determine an over-exposed region of the SDR image and a corrected luminance value for at least a pixel of the over-exposed region. The corrected luminance value is determined based on at least one of a shape of the over-exposed region, luminance information of pixels surrounding the over-exposed region, and edge information of the pixels surrounding the over-exposed region. The over-exposed region may be an irregularly shaped region.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: July 24, 2018
    Assignee: THOMSON LICENSING
    Inventors: Erik Reinhard, Fatma Hawary, Mehmet Turkan
  • Patent number: 10021252
    Abstract: An image reading device includes: a scanner configured to read an image formed on a sheet of paper; a first background member configured to reflect light emitted from the scanner; a colorimeter configured to take a color measurement of the image; a second background member configured to reflect light emitted from the colorimeter; a guide member configured to guide the sheet of paper passing between the colorimeter and the second background member; and a regulating member configured to regulate movement of the sheet of paper, wherein the regulating member includes: a first member including a rolling member; a second member including a rolling member; and a pressing member configured to press the first member and the second member against the guide member, and the pressing member is disposed in a position offset from axes of the first member and the second member.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 10, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Akihiko Ooishi
  • Patent number: 9984445
    Abstract: A tone mapping unit applies tone mapping to a block of pixel values. In each of a plurality of iterations, one or more lines of pixel values are processed based on information relating to pixel values of at least one previous line of the block which have been processed in at least one previous iteration. The information is used to determine one or more tone mapping relationships which is/are used to map the pixel values of the current line to tone-mapped pixel values. Furthermore, the information is updated based on the pixel values of the current line and stored for use in processing pixel values of a subsequent line of pixel values of the block in a subsequent iteration.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: May 29, 2018
    Assignee: Imagination Technologies Limited
    Inventors: Victor Valdes Lopez, Michael Bishop
  • Patent number: 9955044
    Abstract: An input unit receives first image data to be printed with a first ink. A luminance value calculator calculates the luminance value of each pixel included in the first image data. A luminance value converter converts the luminance value to a value which is equal to or greater than a previously-set luminance setting lower limit, and is equal to or less than a previously-set luminance setting upper limit. A printing unit prints a first image based on the first image data with the luminance values converted by the luminance value converter on a print body with a first ink, and prints a second image based on second image data on the print body with a glossy second ink to form a glossy image including the first and second images superimposed on the print body.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 24, 2018
    Assignee: G-PRINTEC INC.
    Inventor: Keiji Ihara
  • Patent number: 9942449
    Abstract: Novel methods and systems for image processing and gamut mapping are disclosed, where image parameters in a first color space are transformed into parameters in a second color space. In one example, the gamut mapping system processes the image parameters in a parametrized space using substantially rectangular spectral functions. In another example, the gamut mapping system processes the image parameters in a parametrized space using smooth spectral functions. The smooth spectral functions may include a linear combination of functions, including at least a cosine square function. Image parameters may include an intensity parameter, a center wavelength parameter, and a saturation parameter.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 10, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Walter Gish
  • Patent number: 9916811
    Abstract: A color conversion data generation device includes: an acquisition unit that acquires end point correction values for correcting a color of at least one end point of a RGB color space; an end point color correction value generation unit that corrects the color of the at least one end point using the acquired end point correction values, to generate end point color correction values; a normalization unit that normalizes an intermediate color in the RGB color space using a normalization coefficient; an interpolation unit that interpolates the normalized intermediate color using the generated end point color correction values by means of same interpolation characteristic as that of a 3D LUT circuit, to generate temporary correction values; and an inverse normalization unit that inverse-normalizes the generated temporary correction values using an inverse normalization coefficient defined according to the normalization coefficient, to generate correction values of the intermediate color.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 13, 2018
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Katsuyuki Matsui
  • Patent number: 9911175
    Abstract: In one example, a method for processing video data includes receiving, by a sink device and from a source device, one or more graphical command tokens that are executable to render original video data; modifying, by the sink device, the graphical command tokens to generate modified graphical command tokens that are executable to render modified video data different from the original video data; and outputting, for presentation at a display operatively connected to the sink device, the modified video data.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: March 6, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Mina Ayman Saleh Yanni Makar, Vijayalakshmi Rajasundaram Raveendran, Xiaodong Wang, Hongyu Jiang
  • Patent number: 9892487
    Abstract: A signal processing circuit, a method of processing an image, and an imaging device are disclosed. In one example of the present disclosure, the signal processing circuit includes image processing circuitry configured to receive a first set of signals corresponding to linear pixels in an array of pixels, receive a second set of signals corresponding to logarithmic pixels in the array of pixels, perform a linear pixel interpolation using the first set of signals to determine a linear rgb value associated with a given pixel in the array of pixels, perform a logarithmic pixel interpolation using the second set of signals to determine a logarithmic RGB value associated with the given pixel in the array of pixels, and combine the linear rgb value and the logarithmic RGB value to generate a combined pixel value associated with the given pixel in the array of pixels.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: February 13, 2018
    Assignee: Sony Corporation
    Inventor: Ping Wah Wong
  • Patent number: 9858243
    Abstract: Measurement data relating to an image of a sample acquired by a measurement device is received (202). A problem is solved that seeks a solution for a spectrum (204) of the sample, based on a non-linear model for estimating a spectral response and on a profile of the measurement device.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: January 2, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hadas Kogan, Michal Aharon, Doron Shaked
  • Patent number: 9858509
    Abstract: A color processing device includes a color data acquisition section and a first-relationship generation section. The color data acquisition section acquires color data of a first image output by a first image forming device on a basis of image data. The first-relationship generation section generates a first relationship that is a relationship between the image data and the acquired color data, the first relationship being generated by applying the image data and the acquired color data to at least one first relationship candidate prepared in advance in a color gamut wider than a color gamut of the color data and by performing matching on the image data and the acquired color data with the first relationship candidate.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: January 2, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yoshitaka Kuwada, Ryosuke Higashikata, Jungo Harigai
  • Patent number: 9854134
    Abstract: When performing color conversion using a color conversion table which has signal values of an output color space corresponding to grid points dividing an input color space into a plurality of unit cubes, a quadrant to which an input signal belongs is determined, in a chromaticity plane perpendicular to a lightness axis of the input color space. A unit cube to which the input signal belongs is detected in the plurality of unit cubes. The detected unit cube is divided into a plurality of polyhedrons for interpolation operation by a segmentation method corresponding to the determined quadrant. The divide of the detected unit cube is performed along a direction of a diagonal line, which passes through an origin of the chromaticity plane, in a part of the plurality of unit cubes in accordance with the segmentation method.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: December 26, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Susumu Shimbaru
  • Patent number: 9835968
    Abstract: A method of converting a CMYK color toner printer to a CMYX color toner printer for under print printing in a single pass, comprising the steps: providing a color toner printer with four toner printing cartridges: a cyan toner printing cartridge, a magenta toner printing cartridge, a yellow toner printing cartridge, and a black toner printing cartridge; wherein the black toner printing cartridge is in a first toner cartridge position; removing the back toner printing cartridge from the first toner cartridge position; providing a non-standard toner printing cartridge; installing the non-standard toner printing cartridge into the first toner cartridge position; providing a raster image processor software; wherein the raster image processor software is configured to remap the four toner printing cartridges of the color toner printer and allows the color toner printer to print a layer of non-standard toner under an image in a single pass; and wherein the image is printed from at least one of a cyan toner, a yello
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: December 5, 2017
    Assignee: UI Technologies, Inc.
    Inventors: Michael Raymond Josiah, Joseph Dovi
  • Patent number: 9826120
    Abstract: An image process device includes an image acquisition part that acquires color image data as a first image data, a color space conversion part that converts the first image data to second image data of a color space, an information acquisition part that extracts a color feature quantity from the color component value for all pixels of the second image data and acquires information of the color feature quantity and the brightness component value about two adjacent pixels different in the color feature quantity among all pixels of the second image data, a derivation part that derives a brightness component value conversion parameter that differs for the color feature quantity based on the information of the acquired color feature quantity and the brightness component value, a conversion part that converts the brightness component value based on the color feature quantity of each pixel of the second image data using the brightness component value conversion parameter for the derived color feature quantity, and a
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: November 21, 2017
    Assignee: Oki Data Corporation
    Inventor: Takara Iwamoto
  • Patent number: 9824639
    Abstract: An image display apparatus includes: a plurality of light emitting units; a display panel; a first acquisition unit configured to acquire brightness information, a first control unit configured to determine light emission quantity for each of the light emitting units; a second acquisition unit configured to acquire a detected value of light from a predetermined region; a first determination unit configured to determine whether a change due to a difference of the light emission quantity between the light emitting units is generated in the light from the predetermined region; a calibration unit configured to perform calibration of display characteristics; and a second control unit configured to control the calibration on the basis of a determination result of the first determination unit.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: November 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshiyuki Nagashima
  • Patent number: 9811263
    Abstract: Integrated circuits that include memory interface and controller circuitry for communicating with external memory are provided. The memory interface and controller circuitry may include a user logic interface, a memory controller, and a physical layer input-output interface. The user logic interface may be operated in a first clock domain. The memory controller may be operated in a second clock domain. The physical layer interface may be operated in a third clock domain that is an integer multiple of the second clock domain. The user logic interface may include only user-dependent blocks. The physical layer interface may include memory protocol agnostic blocks and/or memory protocol specific blocks. The memory controller may include both memory protocol agnostic blocks and memory protocol dependent blocks. The memory controller may include one or more color pipelines for scheduling memory requests in a parallel arbitration scheme.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: November 7, 2017
    Assignee: Altera Corporation
    Inventor: Chee Hak Teh
  • Patent number: 9794540
    Abstract: A computing device may obtain an input image. The input image may have a white point represented by chrominance values that define white color in the input image. Possibly based on colors of the input image, the computing device may generate a two-dimensional chrominance histogram of the input image. The computing device may convolve the two-dimensional chrominance histogram with a filter to create a two-dimensional heat map. Entries in the two-dimensional heat map may represent respective estimates of how close respective tints corresponding to the respective entries are to the white point of the input image. The computing device may select an entry in the two-dimensional heat map that represents a particular value that is within a threshold of a maximum value in the heat map, and based on the selected entry, tint the input image to form an output image.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: October 17, 2017
    Assignee: Google Inc.
    Inventors: Jonathan T. Barron, Yun-Ta Tsai
  • Patent number: 9782986
    Abstract: Print head for black material is arranged such that the black material is to be ejected later than cyan, magenta, and yellow materials on both of forward and backward strokes, and the print heads for the cyan, magenta, and yellow materials are arranged in tandem in a main-scanning direction. The first processing unit converts input image data into CMY image data and then performs black generation and undercolor removal on the CMY image data, to obtain CMYK image data. The second processing unit converts CMY image data excluding K image data from the CMYK image data into image data for use in printing in the backward direction. The on/off switching unit switches between causing and not causing the second processing unit to covert the CMY image data depending on which one of printing in the forward stroke and printing in the backward stroke is to be performed.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: October 10, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventor: Shigetaka Sakakibara
  • Patent number: 9769447
    Abstract: A color signal processing device can correct color phase distortion for each luminance value by using a small-capacity memory and in a circuit configuration having a small chip area and low power consumption.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 19, 2017
    Assignee: MegaChips Corporation
    Inventor: Kazunori Ochiai
  • Patent number: 9767377
    Abstract: A pattern extracting device, an image projecting device, a pattern extracting method, and a program capable of extracting all the feature points by interpolating defective feature points even when there are defective feature points of an image pattern. The pattern extracting device extracts feature points to be interpolated based on a captured image of a projected image pattern, and interpolates the feature point to be interpolated by using near-by feature points that are located near the feature point, divides the near-by feature points into groups, calculates extrapolation coordinates of the groups, and calculates coordinates of the feature point to be interpolated in view of significance of the extrapolation.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: September 19, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yukinaka Uchiyama, Fumihiro Hasegawa
  • Patent number: 9742960
    Abstract: A system and method for calibrating a digital imaging device for color correction is disclosed. The method comprises obtaining an input color value and a reference color value for each of a plurality of color references, as well as a noise evaluation image having a color noise for evaluating noise reduction, the input color values and reference color values being in a non-linear color space. A plurality of color correction parameters are determined as optimized based on evaluating a fitness function in the non-linear color space. The non-linear color space can be a CIE L*a*b* color space. The fitness function can include a color correction error and a noise amplification metric so as to reduce noise amplification during color correction.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: August 22, 2017
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wei Chen, Zisheng Cao
  • Patent number: 9704075
    Abstract: An image processing system for sequentially executing processes includes a process execution control apparatus to control an execution of the processes, and an image generation-output control apparatus to control an execution of image generation-output operation. The process execution control apparatus includes a control-side drawing information generator to generate drawing information to be referred when an image forming apparatus performs the image generation-output operation. The image generation-output control apparatus includes an output-side drawing information generator corresponding to the control-side drawing information generator. The control-side drawing information generator excludes an execution result of a designated process item from execution results of a plurality of process items, to be executed for generating the drawing information, to generate designated-information-excluded image information.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: July 11, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takuya Yamakawa
  • Patent number: 9692943
    Abstract: A method of preparing the rendering with a color output device of at least one object, the method comprising —computing a first output color profile of a first color model, said profile mimicking, for the human eye, a second output color profile of a second color model, said first output color profile being used in a description of said at least one object in a page description language, and the second output color profile being the output device profile, —and converting colors of pixels of the representation of the at least one object obtained by application of a rendering engine to said description, from the first output color profile to the second output color profile.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: June 27, 2017
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jordi Arnabat Benedicto, Marti Maria Saguer, Laura Alicia Clemente Gomez
  • Patent number: 9674404
    Abstract: Certain embodiments provide an image forming apparatus, including: an image forming part to form an image made of plural pixels by using plural printing colors and a special color different from the plural printing colors; an input part of image data of the image; an image processing part to output component data of the plural printing colors from the image data for each of the pixels; a user interface to specify a condition for converting the component data of the plural printing colors into component data of a multi color in which the special color is added to the plural printing colors; and a conversion part to convert the component data of the plural printing colors from the image processing part into the component data of the multi color to the image forming part based on the condition of the user interface.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 6, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Takehisa Ishida
  • Patent number: 9661187
    Abstract: A color gamut mapping method based on a color gamut of a source image is disclosed. The method comprises: (a) inputting a source image, measuring a grayscale value of each of color sub-pixels corresponding to each pixel point; (b) determining multiple preset target pixel points on the source image based on the grayscale value of each of the color sub-pixels; (c) calculating multiple coordinate values in an uniform chromaticity space corresponding to each of the multiple preset target pixel points; (d) determining a color gamut of the source image based on the multiple coordinate values; (e) extracting a color gamut boundary of a target device to obtain a color gamut; and (f) performing a color gamut mapping between the source image and the target device. In a transfer and reproduce process of image colors, the loss is reduced, gamut mapping effect is better, and effectively reduce the amount of calculation.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: May 23, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Lixuan Chen
  • Patent number: 9654803
    Abstract: A pixel pre-processing comprises obtaining an original linear luminance component value of a pixel in a picture in a third color space determined based on a linear color of the pixel in a first color space. A non-linear luma component value in a second color space is derived for the pixel based on a first non-linear chroma component value in the second color space, a second non-linear chroma component value in the second color space and the original linear luminance component value in the third color space. The pre-processing reduces luminance artifacts that otherwise may occur when chroma subsampling is used in combination with a non-linear transfer function.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: May 16, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jacob Ström, Jonatan Samuelsson
  • Patent number: 9652822
    Abstract: According to an embodiment of the present invention, an imaging apparatus includes an image acquiring unit, a correction region setting unit, and an image correcting unit. The image acquiring unit acquires an image. The correction region setting unit sets a region of correction of a face of a person in the image acquired by the image acquiring unit based on a position of the face of the person in the image. The image correcting unit corrects an image in the region of correction set by the correction region setting unit. Thus, according to the imaging apparatus of the embodiment, it is possible to obtain a face image of a desired shape more simply and easily.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: May 16, 2017
    Assignee: CASIO COMPUTER CO., LTD
    Inventor: Takeshi Sato
  • Patent number: 9648293
    Abstract: The conversion of RAW data captured by a camera can have artifacts in smoothness of various hues for varying chroma. To optimize smoothness and color accuracy, transform coefficients defining conversion of a standard color model to a target color model are determined. The RAW data is converted to data in a standard color model and the data in the standard color model is converted to data in the target color model using the transform coefficients. The process is repeated for various lightness levels and combined into a look up table to efficiently convert RAW data to data in the target color model for various lightness levels.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: May 9, 2017
    Assignee: GOPRO, INC.
    Inventors: Sumit Chawla, Elizabeth Torres Edwards, Ying Chen
  • Patent number: 9631977
    Abstract: A method, non-transitory computer readable medium, and apparatus for calibrating a device using augmented data are disclosed. For example, the method measures k spectral values of each patch for a first plurality of patches generated by the device and a second plurality of patches generated by the reference device, creates a first augmented data set by selecting a delta (?), wherein the first augmented data set comprises the ? applied k times to each one of the k spectral values of each one of the first plurality of patches, initializes initializing a function to create a second augmented data set for the reference device, solves the function to obtain a matrix of calibration values of the device that is based upon the first augmented data set and the second augmented data set and calibrates the device using the matrix of calibration values.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 25, 2017
    Assignee: Xerox Corporation
    Inventor: Stuart A. Schweid
  • Patent number: 9635218
    Abstract: An image processing apparatus comprising: a generation unit configured to determine characteristic information associated with image data which expresses an image, to generate an attribute value based on the determination result, and to set the attribute value in an attribute value field included in the image data; and an image processing device configured to apply an image process to a pixel value set in a pixel value field included in the image data, based on the attribute value set in the attribute value field.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: April 25, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Rie Kajihara, Akitoshi Yamada, Mitsuhiro Ono, Fumitaka Goto
  • Patent number: 9613399
    Abstract: A method and a system for enhancing colors of an image are disclosed. The method comprises: converting the color components in an RGB color space of each pixel in an image into a hue component, a saturation component, and a value component in an HSV color space of the pixel; stretching the saturation component when it is greater than 0 and smaller than 1; converting the hue component, the stretched saturation component, and the value component into an enhanced red component, an enhanced green component, and an enhanced blue component in the RGB color space. Through the method, the phenomenon of color shift can be prevented, thus enabling the image to be brighter and vivider. Hence, the viewers' visual experience can be improved. The method can relieve the problems of color shift and picture washout.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: April 4, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jinjun Wu, Chao Ning