Halftoning (e.g., A Pattern Of Print Elements Used To Represent A Gray Level) Patents (Class 358/3.06)
  • Patent number: 10343440
    Abstract: A method prints on a printing material using inks and dampening fluids. An ink printing machine uses ink print heads to apply an image to a front side of the printing material and a dampening fluid print head to apply a dampening fluid image, thus reducing or avoiding water-related cockling of the printing material. The method includes: providing the image to be printed, calculating n different color separation matrices, calculating n ink amount matrices An from the color separation matrices, and calculating a total ink amount matrix A. For every element of the total ink amount matrix: calculating a matrix B as B=G*A, with a weighting matrix G and determining the maximum of the matrix B, calculating a dampening fluid matrix C, calculating the dampening fluid image from the dampening fluid image matrix C, and printing the ink image and the dampening fluid image.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: July 9, 2019
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Peter Hachmann, Klaus Olawsky
  • Patent number: 10326911
    Abstract: A system, method, and non-transitory computer readable medium are disclosed for mitigating dot placement errors for a given print job. The method includes processing tone values on a per pixel basis to determine whether to implement plane dependence. Plane independence is implemented if the tone value exceeds a predetermined threshold. The method may be performed on a pixel by pixel basis and/or a print object or region basis. Determining whether to implement plane dependence may involve de-asserting or partially de-asserting a plane dependence component of an executed half-toning instruction between sequentially processed color planes of a printing system.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: June 18, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jason Quintana, Tsuyoshi Yamashita, Matthew A Shepherd
  • Patent number: 10209658
    Abstract: An image forming system includes: a density detecting section that detects the density of a toner image formed on an image bearing member by an image forming section, the density being detected as an output image density; a hardware processor which performs; tone correction in accordance with input-output characteristics data indicating the relationship between an input image density and an output image density, the input image density being the image density of a tone component included in the input image data, the output image density being detected by the density detecting section in accordance with the tone component; determining whether there is a missing tone component in the input image data; and complementing the input-output characteristics data corresponding to a missing tone component, when it is determined that there is the missing tone component.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: February 19, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Katsuya Toyofuku, Daiki Yamanaka, Toru Yamaguchi
  • Patent number: 10192151
    Abstract: A print control apparatus includes: a job reception unit that receives a print job in which a plurality of different print conditions are capable of being set; a setting reception unit that receives setting of a single print condition among the plurality of print conditions; a print execution unit that prints an image based on the print job as a result of executing the print job in accordance with a single print condition. The print execution unit, when the print condition set in the setting reception unit is changed during execution of the print job, prints an image based on the print job executed under the print condition subsequent to the change immediately after an image based on the print job executed under the print condition prior to the change.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: January 29, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Satoru Nishio
  • Patent number: 10122891
    Abstract: There is provided a recording data generating apparatus that generates recording data used for reproducing a gloss of an image by recording inclined structures on a recording medium, the recording data generating apparatus including: a conversion unit that converts gloss data with a first resolution having an inclined structure as one pixel into inclined structure data representing a combination ratio of a predetermined number of kinds of inclined structures; a halftone processing unit that generates N-value quantization data representing one of the predetermined number of kinds of inclined structures by performing a halftone process of the inclined structure data of each pixel with the first resolution, N being equal to the predetermined number of kinds; and a recording data generating unit that generates recording data used for recording one of the predetermined number of kinds of inclined structures for each pixel with the first resolution based on the quantization data.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: November 6, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takuya Shimada
  • Patent number: 10027852
    Abstract: An image processing device includes a first control circuit to transfer image data of a plurality of color components on a line basis in a main scanning direction, and a second control circuit connected to the first control circuit to process the image data of each one of the plurality of color components transferred from the first control circuit and output the processed image data on a line basis on an object. The first control circuit includes a plurality of registers provided for each one of the plurality of color components, a calculation circuit connected to the plurality of registers, a plurality of addition circuits provided for each one of the plurality of color components and connected to a corresponding one of the plurality of registers and the calculation circuit, and a transfer control circuit connected to the calculation circuit and the plurality of addition circuits.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: July 17, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventor: Yoshitaka Saga
  • Patent number: 10027847
    Abstract: An example embodiment may involve causing a page of a document to be printed on a printing device, wherein the printing device is in an AM halftoning mode and prints the page using an AM halftone; displaying, on the display unit, a graphical user interface, wherein the graphical user interface includes a selectable option to switch the printing device from the AM halftoning mode to an FM halftoning mode; receiving an indication that the selectable option has been selected; possibly in response to receiving the indication that the selectable option has been selected, causing the printing device to switch from the AM halftoning mode to the FM halftoning mode; and causing the page of the document to be printed again on the printing device, wherein the printing device is in the FM halftoning mode and prints the page using an FM halftone.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 17, 2018
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Edwin P. Lockwood, Michael M. Chang, Dongpei Su, Kenneth A. Schmidt
  • Patent number: 9964908
    Abstract: An image forming apparatus includes a printer engine having an exposure unit configured to form an electrostatic latent image based on data of an input image and a development unit configured to develop the formed electrostatic latent image, a specification unit configured to specify a pixel in an edge portion in which an edge-effect and a sweeping-effect are expected to occur, from among a plurality of pixels constituting the input image, and a correction unit configured to correct a toner amount with respect to the pixel in the edge portion in which the edge-effect and the sweeping-effect are expected to occur, which is specified by the specification unit, in order to suppress excessive consumption of toner caused by an effect expected to occur.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: May 8, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshihisa Nomura
  • Patent number: 9883078
    Abstract: A graphics processing method receives a plurality of contiguous pixels, as a single input, including at least a first pixel span associated with a first content type and a second pixel span associated with a second content type. At least one dithering matrix is associated with each of the pixel spans based on the corresponding content type, so that the first and the second pixel spans are associated with different dithering matrices. The single input of the received plurality of pixels is then concurrently processed using an SIMD (Single Instruction Multiple Data) type processor by referring to different dithering matrices depending on the content type of the corresponding pixel spans.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: January 30, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Sheng Wu
  • Patent number: 9871952
    Abstract: An image formation apparatus includes: a storage which stores a test pattern; and image formation sections which form an image of the test pattern on a medium. The image of the test pattern includes divided images formed by being divided into regions in a main scanning direction and a sub-scanning direction. Each of the divided images is formed by at least one preset image formation section out of the image formation sections. A total width, in each of the main scanning direction and the sub-scanning direction, of the divided images formed by each of the image formation sections is larger than the entirety of a corresponding width of the image of the test pattern.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 16, 2018
    Assignee: Oki Data Corporation
    Inventors: Takuya Goto, Fumitaka Ozeki
  • Patent number: 9661186
    Abstract: Gloss effect image patterns are created by creating a solid color background and overprinting the solid color background with the glossmark. In creating the glossmark, a background base of an electronic image region is painted with a solid color corresponding to a color of a marking material; using a first electronic pattern ink, a background of the electronic image region is painted without knocking out the solid color of the background base of the electronic image region; and using a second electronic pattern ink, a foreground in the electronic image region is painted without knocking out the solid color of the background base of the electronic image region such that a pattern in the rendered image area is only visible when a predetermined angle between an observer's viewing angle and an angle of illuminating the rendered recording medium by an illumination source is realized.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 23, 2017
    Assignee: Xerox Corporation
    Inventor: Edward N. Chapman
  • Patent number: 9661154
    Abstract: A printing system is disclosed. The printing system includes a printer controller to receive optical density (OD) measurement data corresponding to application of a halftone pattern using ink on a medium in a printing system and calculate a predicted OD versus normalized ink coverage relationship for the printing system based on the received OD measurement data.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 23, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Mikel John Stanich, Nikita Gurudath, Larry M. Ernst
  • Patent number: 9639790
    Abstract: An image processing apparatus includes a dither processing unit configured to perform dither processing on image data having a first resolution M by using a dither threshold value matrix and a resolution conversion unit configured to perform resolution conversion to convert the image data that is generated by the dither processing unit and which has the first resolution M into image data having a second resolution N lower than the first resolution M by using a filter, and the pixel of a growth center of the dither threshold value matrix and the center pixel of the processing using the filter coincide with each other.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: May 2, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Noboru Abe
  • Patent number: 9635217
    Abstract: A color converter includes a printing color value determining unit and a determination color value calculating unit. The determination color value calculating unit calculates a determination color value in such a way that a positional relationship of a input color value relative to a input peak value, a white color value showing a color value of white, and a black color value showing a color value of black is equal to a positional relationship of the determination color value relative to the determination peak value, the white color value, and the black color value. The printing color value determining unit determines, as a printing color value, the representative color value closest to the determination color value calculated by the determination color value calculating unit in the Voronoi diagram.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: April 25, 2017
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Etsuko Manda
  • Patent number: 9457561
    Abstract: An image forming apparatus includes an image forming device, a threshold comparator, a first image compensator, and a second image compensator. The first compensator executes a processing of, for at least a pixel value less than a threshold, setting a value of stopping discharge of a droplet from a defective nozzle in converting multi-valued data of an input image into n-value data, and spreading a quantization error due to setting the value, to neighboring pixels of a pixel corresponding to a defective nozzle. The second compensator executes a processing of replacing a smaller dot among dots around the defective nozzle with a larger dot by pattern matching using a mask pattern in accordance with a dot size and placement around the defective nozzle, on condition that as a result of comparison of the comparator, the pixel value corresponding to the defective nozzle is equal to or more than the threshold.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: October 4, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Patent number: 9451181
    Abstract: A method includes reading a composite video descriptor data structure and a plurality of window descriptor data structures. The composite video descriptor data structure defines a width and height of a composite video frame and each window descriptor data structure defines the starting X and Y coordinate, width and height of each constituent video window to be rendered in the composite video frame. The method further includes determining top and bottom Y coordinates for each constituent video window, as well as determining left and right X coordinates for each constituent video window. The method also includes dividing each constituent video window using the top and bottom Y coordinates to obtain Y-divided sub-windows, dividing each Y-divided sub-window using left and right X coordinates to obtain X and Y divided sub-windows, and storing X, Y coordinates of opposing corners of each X and Y divided sub-window in the storage device.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: September 20, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sujith Shivalingappa, Sivaraj Rajamonickam
  • Patent number: 9417828
    Abstract: An image forming apparatus capable of scanning document includes a scanner to generate document image by scanning document, and a display to display an alarm screen to alert a size change of a recording medium to a user when print magnification ratio of document image is changed and then a print operation is instructed without changing a size of recording medium to be printed with document image.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: August 16, 2016
    Assignee: Ricoh Company, Ltd.
    Inventor: Kaori Sakata
  • Patent number: 9417554
    Abstract: Provided is an image forming apparatus that performs smoothing in conversion of pseudo high resolution without using a large translation table. A smoothing process part performs smoothing based on a density of a peripheral pixel that adjoins a target pixel on edge. When a density change between both sides of the target pixel in a sub scanning direction is larger than a density change between both sides of the target pixel in a main scanning direction, a density of a plurality of pixels after conversion of pseudo high resolution of a sub scanning direction corresponding to the target pixel is mutually changed. Also, when a density change between both sides of target pixel in the sub scanning direction is not larger than a density change between both sides of the target pixel in the main scanning direction, the density set to the same.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: August 16, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Okito Ogasahara
  • Patent number: 9360791
    Abstract: An image forming apparatus outputs a clock signal used for outputting image data, outputs first image data in accordance with the outputted clock signal, outputs second image data in accordance with a clock signal for which the output clock signal is caused to change by a spread spectrum clock oscillator circuit, calculates a logical OR of the two outputs, and outputs image data, which is the calculation result, to an image forming unit. A laser device provided in the image forming unit is controlled in accordance with the outputted image data.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 7, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Naoki Oyama
  • Patent number: 9338324
    Abstract: Embodiments of a computer-implemented method for thin-line enhancement in electronic images are disclosed. The methods include receiving a halftone image comprising multiple pixels, and associating a predefined kernel with at least a portion of the halftone image. The kernel includes multiple check cells and a processing cell, each capable of being toggled between an active state and an inactive state; detecting a state of each of the pixels in the neighborhood of an inactive pixel associated with the processing cell based on one or more predetermined rules being applied to the kernel, wherein the inactive pixel is in communication with a contiguous set of active pixels; and selectively activating the inactive pixel by activating the processing cell based on the predetermined rules, provided the inactive pixel upon being activated is separated from a neighboring active pixel.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: May 10, 2016
    Assignee: XEROX CORPORATION
    Inventor: Sudhagar Subbaian
  • Patent number: 9286554
    Abstract: A method of forming halftone printed images in a three-dimensional printer includes generating halftone coverage data for a region of an image receiving surface including at least one color marking agent and a color neutral marking agent. The method further includes generating halftone image data with reference to the halftone coverage data and operating a plurality of ejectors to form a printed halftone image having a uniform thickness. A first pixel location receives a first color marking agent and at least a second pixel location receives the color neutral marking agent.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: March 15, 2016
    Assignee: Xerox Corporation
    Inventors: Martin S. Maltz, Roger L. Triplett
  • Patent number: 9227395
    Abstract: An image processing apparatus includes an acquiring unit, a first calculating unit, a setting unit, a second calculating unit, a first generating unit, and a second generating unit. The acquiring unit acquires image data of an image to be formed by a recording unit using an inkjet system. The first calculating unit calculates a thickness of ejected ink for each pixel based on the image data. The setting unit sets a target thickness of the image. The second calculating unit calculates a difference between the target thickness and the thickness of ink for each pixel. The first generating unit generates complementary data, in which an ejection amount of an additional droplet to realize a thickness corresponding to the difference is defined for each pixel. The second generating unit generates print data containing the image data and the complementary data.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: January 5, 2016
    Assignee: Ricoh Company, Limited
    Inventor: Shinichi Hatanaka
  • Patent number: 9113104
    Abstract: Disclosed is an image processing apparatus to perform screen processing for image data, and to form an image based thereon, comprising a screen processing unit to perform the screen processing by using a subcell corresponding to a plurality of pixels, and in which a first and a second threshold values are determined according to each position of the pixels, wherein the screen processing unit obtains threshold values, to output either an invariable value Dmin, an invariable value DMax, or an interpolated value of the two invariable values, and wherein the subcell is determined so that the first threshold value of a given pixel is larger than the first threshold value of a prior pixel and is smaller than the second threshold value thereof, the threshold values of the prior pixel being determined so that a dot is formed in the prior pixel earlier than in the given pixel.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: August 18, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventor: Masanori Yoshizawa
  • Patent number: 9092719
    Abstract: A color image processing apparatus includes an image forming unit configured to form a color image using recording materials of plural colors, an image processing unit configured to implement plural image processing methods that achieve plural types of pseudo-halftone representations, a color measurement unit configured to perform color measurement of the color image formed by the image forming unit, and a control unit configured to control execution of multi-color calibration in which the color measurement unit performs color measurement of a pattern image including plural multi-color patch images formed using recording materials of plural colors by using a smaller number of image processing methods than plural image processing methods used in single-color calibration for correcting reproduction characteristics of single-color images formed by the image forming unit and in which reproduction characteristics of a multi-color image formed by the image forming unit are corrected using a result of the color meas
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: July 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Asako Hashizume
  • Patent number: 9087291
    Abstract: An image processing apparatus includes a generation unit; wherein a first dither pattern and a second dither pattern have same threshold values that are set for same pixels in a first gradation range, and have different threshold values that are set for same pixels in a second gradation range that exceeds the first gradation range; and the generation unit sets a first threshold value for forming dots of the first dither pattern, and generates a first binary data according to whether or not a threshold value corresponding to a target pixel of the first dither pattern is included in the first threshold value, and sets a second threshold value for forming dots of the second dither pattern, and generates a second binary data according to whether or not a threshold value corresponding to a target pixel of the second dither pattern is included in the second threshold value.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 21, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinjiro Hori, Nobutaka Miyake, Akitoshi Yamada, Fumitaka Goto, Ryosuke Iguchi, Hidetsugu Kagawa, Tomokazu Ishikawa, Kouta Murasawa, Hiromitsu Akiba, Junichi Nakagawa, Senichi Saito
  • Patent number: 9074032
    Abstract: The invention relates to the use of silane-modified polyvinyl alcohols for producing membranes, characterized in that the silane-modified polyvinyl alcohols can be obtained by a) radically initiated copolymerization of one or more vinyl esters from unbranched or branched carboxylic acids having 1 to 15 C-atoms and one or more ethylenically unsaturated silane compounds selected from the group comprising compounds of the general formulae CR2=CR—B—Si(OR?)3-n(R?)n (1), or CR2=CRC(?O)-D-B—Si(OR?)3-n(R?)n (2), wherein B is an aryl, heteroaryl or (CR2) m residue, wherein one or more non-neighboring CR2 groups can be replaced by heteroatoms as applicable, D is a heteroatom, R is a hydrogen atom, an alkyl or aryl residue or a heteroatom that is substituted as applicable by a hydrogen atom or an alkyl, aryl residue, OR is an alkoxy, alkylcarboxy or arylcarboxy residue, R? is an alkyl or aryl residue and n 0, 1 or 2 and in 0 to 15, and b) subsequent saponification of the silane-modified vinyl ester copolymerizate obtain
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: July 7, 2015
    Assignee: Wacker Chemie AG
    Inventors: Manfred Hölzl, Martin Bortenschlager, Susanne Hecher, Felicitas Schauer
  • Patent number: 9052624
    Abstract: A fluorescing dry toner particle comprises a polymeric binder phase comprising a non-fluorescing binder polymer and a polymeric fluorescing colorant dispersed within the non-fluorescing binder polymer. The polymeric fluorescing colorant comprises a fluorescing moiety that is covalently attached to a colorant polymer that is the same or different than the non-fluorescing binder polymer, but the polymeric fluorescing colorant is blendable with the non-fluorescing binder polymer to form a homogeneous polymeric binder matrix, and is present in an amount of at least 1 weight % and up to and including 40 weight %, based on the total fluorescing dry toner particle weight. These fluorescing dry toner particles can be used in various dry developers to provide fluorescing toner images with or without non-fluorescing color toner images.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 9, 2015
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Dinesh Tyagi, Louise Granica
  • Publication number: 20150146261
    Abstract: Methods and systems receive an input image into a computerized device, create different binary images by applying different threshold measures to the input image using the computerized device, and identify components of a first binary image of the binary images using the computerized device. Such methods and systems also compare pixels of each of the components of the first binary image with corresponding pixels of a second binary image of the binary images to identify pixel differences using the computerized device. This allows these methods and systems to identify halftone areas within the input image based on the pixel differences exceeding a limit using the computerized device.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 28, 2015
    Applicant: XEROX CORPORATION
    Inventors: Sudhagar Subbaian, Sainarayanan Gopalakrishnan, Vignesh Doss, Xing Li, Clara Cuciurean-Zapan
  • Patent number: 9036214
    Abstract: Disclosed is a dither matrix generating method in which halftone dots are formed by growing corresponding dots. The dither matrix generating method includes a first generating step of generating first threshold values of a dither matrix, so that the dots are grown until a predetermined halftone dot area ratio is achieved, wherein, when the predetermined halftone dot area ratio is achieved, the halftone dots contact each other; and a second generating step of generating second threshold values of the dither matrix, so that the dots grow beyond the predetermined halftone dot area ratio.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: May 19, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventor: Yuuki Sagimori
  • Patent number: 9036212
    Abstract: A method is disclosed. The method includes generating a Continuous Tone Image (CTI) with all pixel values same as the first gray level and an initial Half Tone Image (HTI) with all pixel values equal to minimum absorptance level, computing a change in pixel error by toggling with all the possible output states and swapping with all neighbor pixels only if the stacking constraint is satisfied, updating the HTI with the maximum error decrease operation and continue to next pixel location till the end criteria is met. Once the end criteria is met, the updated HTI is saved as a final halftone screen for that gray level and copied as the initial HTI for the next gray level along with CTI pixel values updated to the next gray level till the final gray value is reached.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: May 19, 2015
    Assignee: Ricoh Production Print Solutions LLC
    Inventors: Kartheek Chandu, Mikel Stanich, Chai Wah Wu, Barry M. Trager
  • Publication number: 20150131128
    Abstract: An image processing device includes a first and a second image processing module including an image processing unit, and a connection module that is connected to the first and second image processing modules, and moves an image data from one image processing module to the other image processing module. At least one of the image processing modules includes a weighted average processing unit that calculates, based on a weighting coefficient included in an attribute value, a weighted average of a pixel value of the input image data and a image processed pixel value, and an output unit which outputs at least one of the image processed pixel value and the weighted-averaged pixel value.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 14, 2015
    Inventors: Akitoshi Yamada, Mitsuhiro Ono, Fumitaka Goto, Rie Kajihara
  • Patent number: 9030713
    Abstract: Provided is a data processing method that is capable of high-speed processing without using a large cache memory, while correlating 2-dimensional parameters with a plurality of data without damaging the arrangement rule. Therefore, when there is a continuing M-line parameter after a previously read M-line parameter in a 2-dimensional table that is stored in an external memory 406, the contents of the cache memory 404 are updated with this continuing M-line parameter as the new parameter. When there is no continuing M-line parameter after the previously read M-line parameter in the 2-dimensional table, the contents of the cache memory 404 are updated with the continuing M-line parameter after returning to the starting line of the 2-dimensional table as the new parameter. Such an update rule is maintained even when the band, which is the processing unit, is changed, or even in the progress of band processing.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hironori Nakamura
  • Patent number: 9025210
    Abstract: A document management apparatus in an embodiment is configured to manage a printer unit which erase image information obtained by printing both characteristic identification information and document information or only the document information with an erasable color material on a printing medium, and a reading unit configured to read the characteristic identification information on the printing medium to be erased by a erasing unit, comprising: an processor unit configured to manage an erasability condition of the document information on the basis of the characteristic identification information and instruct the printer unit to output new document information according to the erasability condition of the document information, the erasability condition being contained in the characteristic identification information read by the reading unit; and an interface unit performs respectively of the transmitting and receiving of information to the reading unit and the printer unit to the processor unit.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: May 5, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Hajime Tomizawa, Akihiko Fujiwara, Shunichi Megawa, Masaaki Yasunaga
  • Publication number: 20150116780
    Abstract: A halftone dot addition device for adding halftone dots to halftone dot images includes an empty circle information acquiring unit and a halftone dot addition unit. The empty circle information acquiring unit obtains, in a Voronoi diagram having a generatrix corresponding to a halftone dot in a halftone dot image. The radius of an empty circle is a circle centering on a Voronoi vertex. The empty circle passes through the generatrix but not internally includes the generatrix. The halftone dot addition unit, if the radius of a target circle being the empty circle obtained, as a target, by the empty circle information acquiring unit is larger than a specific value, adds to the halftone dot image a halftone dot corresponding to a new generatrix, by adding the new generatrix to the inside of the target circle.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Inventor: Etsuko Manda
  • Patent number: 9019563
    Abstract: A halftone image generation device is provided that, by partially selecting and blending a first halftone image obtained by halftone processing a specific image using a first method and a second halftone image obtained by halftone processing the specific image using a second method different from the first method, generates a third halftone image of the specific image. The device includes a detector detecting, from the first halftone image, a dot pixel in which a dot is disposed, and a blender blending the first halftone image and the second halftone image by, when a dot is not disposed in any of neighboring pixels in the first halftone image that neighbor the dot pixel, employing, as binary values of isolated-point related pixels in the third halftone image that are in a same position as the dot pixel and the neighboring pixels, binary values of the dot pixel and the neighboring pixels.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: April 28, 2015
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Tomohiro Yamaguchi
  • Patent number: 9013756
    Abstract: A method, non-transitory computer readable medium, and apparatus for printing is disclosed. For example, the method selects a first frequency and a first angle for a low frequency halftone, selects a second frequency and a second angle for a high frequency halftone, wherein the high frequency halftone comprises a large dot cluster and a small dot cluster, tags each one of one or more objects in an image to be printed, selects a low frequency halftone or a high frequency halftone for the each one of the one or more objects that are tagged and prints the image in accordance with the low frequency halftone or the high frequency halftone that is selected for the each one of the one or more objects that are tagged.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: April 21, 2015
    Assignee: Xerox Corporation
    Inventor: Michael Dale Stevens
  • Patent number: 9007656
    Abstract: The present invention provides a method, an apparatus and a printing equipment for printing documents, comprising: obtaining the name of the color document; retrieving the printing step information for the color document, according to the name of the color document, and determining if the printing step information for the color document is complete; printing the color document, according to the printing step information, in the case that the printing step information for the color document is complete. Thus, it is possible to avoid the problem of consuming a large amount of time caused by processing the color document at each time of printing it, so as to greatly increase the speed and efficiency of cyclic printing documents.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: April 14, 2015
    Assignees: Peking University Founder Group Co., Ltd., Beijing Founder Electronics Co., Ltd.
    Inventors: Jinghua Shen, Haifeng Li, Yanman Ma
  • Patent number: 9001379
    Abstract: An image forming apparatus includes an input part for receiving image data; an image processor for image-processing the input image data; an output part for outputting data processed at the image processor; and a controller for controlling the image processor to process the image using one of a plurality of image processing modes having a toner consumption lower than a toner density to use when the toner density to use for outputting the input image data exceeds a preset reference density. The plurality of the image processing modes includes a boundary image processing mode which outputs only boundaries of objects in the image data. Thus, the toner used for the image forming can be saved.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ho-Keun Lee
  • Patent number: 9001181
    Abstract: An image processing apparatus includes an image acquiring unit that acquires an image of a subject imaged by an image capturing lens; a face detecting unit that detects face information corresponding to a person's face from the image acquired by the image acquiring unit; an image angle-of-view calculating unit that calculates an angle of view of a portion including the face in the image based on the face information detected by the face detecting unit; and a correction necessity determining unit that determines whether distortion correction of the image is need to be performed, based on the angle of view calculated by the image angle-of-view calculating unit and distortion characteristics of the image capturing lens.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: April 7, 2015
    Assignee: Ricoh Company, Limited
    Inventor: Tetsuo Yamashita
  • Patent number: 9001386
    Abstract: An image forming apparatus performs a trapping process. The image forming apparatus includes an image processing unit that includes a determination unit, a color correction unit, a processing unit, an adding unit, and a generating unit. The processing unit performs the trapping process on the pieces of image data, on which the color correction has been performed by the color correction unit. The generating unit generates intermediate data in accordance with the print data including the pieces of image data, on which the trapping process has been performed. The image forming apparatus also includes a rendering unit that performs a rendering process on one or more of the pieces of image data on which the color correction has been performed by the rendering unit and on the pieces of image data for which tag information indicates that the color correction has been performed.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: April 7, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Masafumi Sugawara
  • Patent number: 9001388
    Abstract: An image forming apparatus includes a storage unit configured to store a rendering image having a plurality of tones, a communication interface unit configured to receive print data, a rendering unit configured to render the received print data to a bitmap image, a mergence unit configured to merge the bitmap image and the rendering image into a single mergence image, a binary coding unit configured to perform halftoning for the generated mergence image to generate binary data, and a print engine unit configured to form an image on a paper by using the generated binary data.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Haeng-nan Kim
  • Patent number: 8995022
    Abstract: An ink jet process is used to deposit a material layer to a desired thickness. Layout data is converted to per-cell grayscale values, each representing ink volume to be locally delivered. The grayscale values are used to generate a halftone pattern to deliver variable ink volume (and thickness) to the substrate. The halftoning provides for a relatively continuous layer (e.g., without unintended gaps or holes) while providing for variable volume and, thus, contributes to variable ink/material buildup to achieve desired thickness. The ink is jetted as liquid or aerosol that suspends material used to form the material layer, for example, an organic material used to form an encapsulation layer for a flat panel device. The deposited layer is then cured or otherwise finished to complete the process.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: March 31, 2015
    Assignee: Kateeva, Inc.
    Inventors: Eliyahu Vronsky, Nahid Harjee
  • Patent number: 8995020
    Abstract: When a skewness of brightness of a print target image is a first skewness, print data is generated such that an ink amount of a metallic ink is a first amount. When the skewness of brightness is a second skewness that is larger than the first skewness, a print data is generated such that the ink amount is a second amount that is larger than the first amount.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: March 31, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Yoshio Okumura, Takashi Kobayashi
  • Patent number: 8995021
    Abstract: Provided are black trapping methods, apparatus and systems for binary images. According to one exemplary method, black trapping color image data is performed by incorporating a set of trapping condition logical operations. Specifically, edge checking is based on estimated contone color values and density checking based on a binary bitmap.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: March 31, 2015
    Assignee: Xerox Corporation
    Inventors: Xing Li, Zhenhuan Wen
  • Patent number: 8988734
    Abstract: An image processing apparatus for forming an image by performing a plurality of times of recording on a same region of a recording medium by using a recording head including a plurality of recording elements for each of a first color material and a second color material, and a generation unit configured to generate recording data corresponding to each scan of the first color material and the second color material, wherein the generation unit generates, in a case where a defective recording element occurs among the plurality of recording elements for recording the first color material, recording data corresponding to each scan of the first color material by complementing a recording amount assigned to the defective recording element so that impact order between the first color material and the second color material is not changed.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: March 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shoei Moribe
  • Publication number: 20150077808
    Abstract: A method and system for estimating continuous tone values associated with input pixels in a color image are provided. The method includes receiving binarized halftone image data representing a color image, wherein the color image has a plurality of input pixels; and estimating the continuous tone values associated with each of the input pixels by: establishing a window comprising a pixel of interest and neighboring pixels in the binarized halftone image data, wherein the window comprises a plurality of sub-windows and wherein each sub-window has a plurality of predetermined number of rows and columns of pixels; and processing the binarized halftone image data in both a process direction and a cross-process direction using the window such that the processing is performed for one of the pixels in each of the rows within the sub-window and the processing is skipped for the remaining pixels in that row of that sub-window.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: XEROX CORPORATION
    Inventors: Xing Li, David Jon Metcalfe, Robert Robideau
  • Patent number: 8982422
    Abstract: An image forming apparatus for forming an image in accordance with light to be emitted from a light source includes: a digital half-toning unit configured to convert a uniform-pixel-value region of image data to a parallel-line pattern formed with a plurality of parallel lines extending obliquely with respect to a direction, in which pixels are arrayed, thereby expressing each gray level of the image data as an area percentage; a modulated-signal generating unit configured to generate a modulated signal by modulating the converted image data with a clock signal; a light-source driving unit configured to drive the light source according to the modulated signal; and an edge control unit configured to narrow a to-be-illuminated region, which is to be illuminated by the light from the light source, in each of edge neighborhoods of the lines constituting the parallel-line pattern, while increasing intensity of the light.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: March 17, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Muneaki Iwata, Masaaki Ishida, Atsufumi Omori, Hayato Fujita
  • Patent number: 8982419
    Abstract: Some of the embodiments provide a method for processing a continuous tone image, wherein each pixel of a plurality of pixels of the continuous tone image is associated with a corresponding value that represents a tone of the pixel, the method comprising for each pixel of the plurality of pixels of the continuous tone image, determining the corresponding value of the pixel that represents the tone of the pixel, wherein each pixel of a first subset of the plurality of pixels of the continuous tone image has a corresponding value that is within a first range; and generating a halftone image from the continuous tone image such that for each pixel of the first subset of the plurality of pixels of the continuous tone image, a corresponding pixel of the halftone image is generated to have a value that represents a zero optical density or a first optical density.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: March 17, 2015
    Assignee: Marvell International Ltd.
    Inventor: Richard I. Klaus
  • Patent number: 8983182
    Abstract: A method and system for estimating continuous tone values associated with input pixels in a color image are provided. The method includes receiving binarized halftone image data representing a color image, wherein the color image has a plurality of input pixels; and estimating the continuous tone values associated with each of the input pixels by: establishing a window comprising a pixel of interest and neighboring pixels in the binarized halftone image data, wherein the window comprises a plurality of sub-window's and wherein each sub-window has a plurality of predetermined number of rows and columns of pixels; and processing the binarized halftone image data in both a process direction and a cross-process direction using the window such that the processing is performed for one of the pixels in each of the rows within the sub-window and the processing is skipped for the remaining pixels in that row of that sub-window.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: March 17, 2015
    Assignee: XEROX Corporation
    Inventors: Xing Li, David Jon Metcalfe, Robert Robideau
  • Publication number: 20150070731
    Abstract: A method, non-transitory computer readable medium, and apparatus for printing is disclosed. For example, the method selects a first frequency and a first angle for a low frequency halftone, selects a second frequency and a second angle for a high frequency halftone, wherein the high frequency halftone comprises a large dot cluster and a small dot cluster, tags each one of one or more objects in an image to be printed, selects a low frequency halftone or a high frequency halftone for the each one of the one or more objects that are tagged and prints the image in accordance with the low frequency halftone or the high frequency halftone that is selected for the each one of the one or more objects that are tagged.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: Xerox Corporation
    Inventor: Michael Dale STEVENS