Using Look Up Table Patents (Class 345/601)
  • Patent number: 8922580
    Abstract: Modifying a color lookup table includes receiving a first image, a first color lookup table (CLUT) indexed in a first image color space, and a second CLUT indexed in a colorimetric space. Tracer pixels from the second CLUT are generated and retained, each tracer pixel including color coordinates of a corresponding unique node in the first CLUT. Tracer pixels are inserted into the first image, and tracer pixels are tracked. Color adjustments are made using image editing software to generate an adjusted combined image having adjusted tracer pixels. The adjusted tracer pixels are extracted. The second CLUT is converted to a third CLUT having a size N1×N2×N3×N4 by replacing each of the output-device color coordinates of the second CLUT nodes by modified device color coordinates computed from the adjusted color coordinates of the adjusted tracer pixels.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 30, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter Morovic, Jan Morovic, Jordi Arnabat Benedicto, Manuel Angel Albarran Moyo
  • Patent number: 8922400
    Abstract: A method is disclosed for compressing a sequence of initial digital values into a compressed sequence of compressed values, intending to restore these values into a decompressed sequence of decompressed values. For a first initial value of the sequence, the compressed value of the first initial value is equal to the first initial value and the decompressed value of the compressed value of the first initial value is equal to the first initial value.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: December 30, 2014
    Assignee: I-CES (Innovative Compression Engineering Solutions)
    Inventor: Than Marc-Eric Gervais
  • Publication number: 20140375675
    Abstract: An image output apparatus includes an image processing component, an OSD production component and an output component. The image processing component is configured to perform an image processing on input image data to generate processed image data. The OSD production component is configured to produce OSD data that specifies color data according to a display characteristic of a display apparatus that is configured to be connected to the image output apparatus. The output component is configured to combine the OSD data with the processed image data to output output image data.
    Type: Application
    Filed: November 13, 2012
    Publication date: December 25, 2014
    Inventors: Hidetoshi Ishihara, Keisuke Tsukamoto, Kentaro Eto, Keita Nishimura, Norihiro Higashi
  • Publication number: 20140362106
    Abstract: An image processing apparatus includes an image information transmitting unit, a color information acquiring unit, a gradation characteristic determination unit, and a change instruction output unit. The image information transmitting unit transmits, to a display device, pieces of information corresponding to color measurement images. The color information acquiring unit acquires pieces of color information of images displayed on the display device on the basis of the transmitted pieces of information. The gradation characteristic determination unit determines, on the basis of the acquired pieces of color information, whether or not a setting of color adjustment that is performed in the display device satisfies a predetermined gradation characteristic.
    Type: Application
    Filed: November 21, 2013
    Publication date: December 11, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Toshihiro IWAFUCHI, Kazuhiko HORIKAWA, Noriko SAKAI
  • Publication number: 20140347384
    Abstract: An image signal modifying method is disclosed. In one aspect, the image signal modifying method includes inputting a gray level interval of a first dynamic capacitance compensation (DCC) lookup table to a current gray level which is a target in a previous image signal when it is overdriven (DTG) and 0 to a gray level of the previous image signal (PIG). The method also includes searching for a data value in an adaptive color correction (ACC) lookup table corresponding to a gray level equal to a numerical value of the DTG (ALT) and performing an algorithm based on the DTG, the ALT, and the gray level interval of the first DCC lookup table. The method further includes generating a second DCC lookup table based on the algorithm, and performing second DCC processing on the input image signal based on the second DCC lookup table.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 27, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Young-Sun Kwak, Kyung Won Kang, Ji Hyun Kim, Hyeon-Do Park, Won Jin Seo, Jun-Ho Hwang
  • Patent number: 8897539
    Abstract: According to various embodiments, a stream of image frames depicting a structure in a scene are obtained. The stream of image frames may comprise first image frames from a first imaging device and second image frames from a second imaging device. Using the first image frames and the second image frames, a wireframe of at least a portion of the structure is generated. From the wireframe, as-built dimensions may be identified, materials estimates may be determined, and/or data for a fabrication device may be generated, for example.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: November 25, 2014
    Assignee: Metalforming, Inc.
    Inventors: Geoffrey Stone, William Gaither Wilkins, Habib Fathi, Ioannis Brilakis
  • Patent number: 8890901
    Abstract: A color management circuit and a related color management method are provided. The color management circuit is disposed in a display device which has a panel provided with a panel conversion characteristic. The color management circuit includes: a first nonlinear conversion circuit, a color matrix conversion circuit and a second nonlinear conversion circuit. The first nonlinear conversion circuit is utilized for performing a first nonlinear conversion upon a color data to generate a first conversion data. The color matrix conversion circuit is utilized for performing a liner matrix calculation upon the first conversion data to generate a matrix calculation data. The second nonlinear conversion circuit is utilized for performing a second nonlinear conversion upon the matrix calculation data to generate a second conversion data to the panel, wherein a combined conversion characteristic of the second conversion characteristic with the panel conversion characteristic is substantially linear.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: November 18, 2014
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yu-Chung Lee, Pei-Chen Huang
  • Publication number: 20140327695
    Abstract: An image processing apparatus according to the present invention comprises a generation unit configured to generate a lookup table having a specific number of lattice points for converting input image data into display image data having a different gradation characteristic by using a predetermined expression and a conversion unit configured to convert the input image data into the display image data by using the lookup table generated by the generation unit. The generation unit determines positions of the specific number of lattice points in accordance with a dynamic range of the input image data.
    Type: Application
    Filed: April 24, 2014
    Publication date: November 6, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yasuo Suzuki
  • Publication number: 20140320521
    Abstract: A display device includes a first pixel connected to a first gate line and a data line, a second pixel connected to a second gate line, different from the first gate line, and the data line, the second pixel being pre-charged when the first pixel is charged, a compensation LUT which stores LUT values for compensating a charging rate during a main charging of the second pixel; and an image signal processor which generates a compensated image signal for the main charging of the second pixel. The image signal processor may include a correction value calculating unit which calculates a correction value from the compensation LUT based on first and second input image signal of respective first and second pixels, and a compensated value generating unit which generates a compensated image signal for the second pixel based on the correction value and the second input image signal.
    Type: Application
    Filed: January 24, 2014
    Publication date: October 30, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwan-Young OH, Youn Jin JUNG, Po-Yun PARK, Jae-Won JEONG
  • Publication number: 20140320522
    Abstract: An image processing apparatus is provided which offers higher versatility than conventional image processing apparatuses. When an input signal to a spatial filtering block is a monochrome signal that contains Y component only, a selector selects its input terminal and a selector selects its input terminal. Then, a low-pass filter output signal of a programmable spatial filter is inputted to a spatial filter, and a low-pass filter output signal of the spatial filer is inputted to a spatial filter. That is, the programmable spatial filter and the spatial filters are connected in series (in cascade), and the cascade-connected three spatial filters perform filtering operation. In this example, low-pass filters with 5H5 taps are connected in cascade in three stages, which enables low-pass filtering with 13H13 taps.
    Type: Application
    Filed: July 10, 2014
    Publication date: October 30, 2014
    Applicant: MegaChips Corporation
    Inventor: Gen SASAKI
  • Patent number: 8867065
    Abstract: Disclosed are methods and apparatus for operating a page parallel RIP printing system including a plurality of image marking engines (IMEs). According to an exemplary method, a print job is split into a plurality of job chunks, each job chunk grouped by its destination IME; and the job chunks are processed into a printer ready format by a plurality of RIP nodes associated with the job chunk group's respective destination IME.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: October 21, 2014
    Assignee: Xerox Corporation
    Inventor: R. Victor Klassen
  • Publication number: 20140306985
    Abstract: Provided are a flexible display device and a method of controlling the same. The flexible display device includes: a display unit including a first display area and a second display area bendable with respect to the first display area; and a control unit correcting at least one of a brightness and color coordinate of an image to be displayed in at least one of the first display area and the second display area according to a degree of bending between the first display area and the second display area.
    Type: Application
    Filed: September 14, 2013
    Publication date: October 16, 2014
    Inventors: Chul-Woo Jeong, Soon-Ryong Park, Woo-Suk Jung, Jung-Ho So, Tae-Eun Kim
  • Patent number: 8860751
    Abstract: A method of producing a color image using a display comprised of pixels comprising red, green and blue primary color subpixels. The method comprises reducing the color gamut and increasing the brightness of the image relative to a base level, decreasing power to the display to reduce the brightness of the image, restoring color to the image to approximately the base level by modifying image pixel data using a three-dimensional lookup table to produce output image pixel data, and communicating the output image pixel data to the display. The display may be an LCD display, an LED display, an OLED display, a plasma display, and a DMD projector. Reducing the color gamut and increasing the brightness of the image may be accomplished by adding white to the image. The white may be added adaptively according to an algorithm by which the amount of white added decreases with increasing color saturation.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: October 14, 2014
    Assignee: Entertainment Experience LLC
    Inventors: James R. Sullivan, Rodney L. Heckman
  • Patent number: 8860747
    Abstract: System and methods for gamut bounded saturation adaptive color enhancement are provided. Color enhancement incorporating gamut bounded saturation enhances colors of an pixel from a source color gamut such that the resulting color is within a target color gamut. This resulting color may, for example, take advantage of an expanded target color gamut of a display. Gamut bounded saturation may be implemented independently or in combination with RGB bounded saturation.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: October 14, 2014
    Assignee: Marvell World Trade Ltd.
    Inventors: Vasudev Bhaskaran, Sujith Srinivasan, Nikhil Balram
  • Patent number: 8861850
    Abstract: Systems, methods, and computer readable media for performing color correction operations to address memory color artifacts in a manner suited for real-time operations. In general, techniques are disclosed for correcting memory color rendering artifacts in an image without performing color space conversions. In one implementations, hue-saturation-value (HSV) image correction values may be expressed solely in terms of an image's base red-green-blue (RGB) color space values. Once expressed in this manner, color correction may be applied to the image directly—without the need to convert the image's color space into and out of a working color space (e.g., an HSV color space). As no color space conversions are necessary, the disclosed techniques are well-suited to real-time operations.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: October 14, 2014
    Assignee: Apple Inc.
    Inventors: Serhan Uslubas, David Hayward
  • Patent number: 8847976
    Abstract: A method, apparatus and system for transforming a calorimetric adjustment of a sequence of images from an input color space into an output color space includes a color adjustment device for determining a transformation table for converting the input color space of the sequence of images to an output color space, for applying a first order approximation to at least one subset of the sequence of images, the subsets of the sequence of images defined by the transformation table, and if the sequence of images has not reached convergence, for applying a second order approximation to at least one subset of the sequence of images. In one embodiment, the color components of the output color space are defined by a combination of intermediate terms, where the number of the intermediate terms corresponds to the number of input color space components. The transform is configured to survive a video distribution workflow.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: September 30, 2014
    Assignee: Thomson Licensing
    Inventor: Pierre Jean Ollivier
  • Patent number: 8830252
    Abstract: A color-temperature-compensation (CTC) method and applications thereof are provided, and which includes determining intensities of weights of three colors in an inputted three-dimension color signal; if yes, performing a lookup table mechanism to find-out a first set of multi-primary-color (MPC) signal corresponding to the three colors with the same weights, and performing a digital-gamma-correction (DGC) to the first set of MPC signal for providing a first set of CTC signal accordingly; if no, performing the lookup table mechanism to find-out a second set of MPC signal corresponding to the three colors with different weights, and performing the DGC to the second set of MPC signal for providing a second set of CTC signal accordingly; and making at least one same color with the same intensity in the three colors with the same weights and in the three colors with different weights displaying on an MPC display have different brightness.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: September 9, 2014
    Assignee: Au Optronics Corporation
    Inventors: Yen-Tao Liao, Sheng-Wen Cheng
  • Patent number: 8818090
    Abstract: A color processing apparatus includes an obtaining unit that obtains a first color signal from outside, a converting unit that converts the first color signal obtained by the obtaining unit into a second color signal based on a viewing condition, and a generating unit that generates a third color signal on the basis of the first color signal obtained by the obtaining unit and the second color signal obtained through conversion performed by the converting unit, the third color signal being an input signal that is used for a color gamut mapping process of performing mapping to a color gamut of an output device.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: August 26, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yasunari Kishimoto
  • Patent number: 8817040
    Abstract: A magnified image is improved by integrating the wavelength specific component into that image. A magnified images obtained, and at least one wavelength specific component images also obtained. The different images are converted in color space, and different channels, indicative of the different parts of the image shows, are also obtained. For example, the image may be converted to an L*a*b* color space, and the luminance channel of the wavelength specific component may be used to enhance or replace the luminance channel of the magnified image.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: August 26, 2014
    Assignee: Carl Zeiss Microscopy GmbH
    Inventor: Roscoe Atkinson
  • Patent number: 8803903
    Abstract: A color space determination device may include a sampling configuration unit and determination unit. The sampling configuration unit may be configured to determine a sampling ratio and a sampling number based on a resolution of input video data, the sampling ratio being a ratio of a number of the input video data to be sampled to a total number of the input video data included in a frame, the sampling number being a number of frames to be sampled. The determination unit may be configured to receive the input video data in units of frames, to sample the input video data with the sampling ratio for each of the sampling number of frames, and to generate a color space signal representing a color space of the input video data based on the sampled input video data that are sampled from the sampling number of frames of the input video data.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Hyun Lee, Hong-Mi Choi, Taek-Kyun Shin
  • Publication number: 20140210851
    Abstract: An image processing apparatus includes an image information transmission unit, a color information acquisition unit, and a conversion relationship creation unit. The image information transmission unit transmits, to a display device, pieces of color-conversion image information representing images used for performing color conversion for the display device, in ascending order of lightness of the images in a predetermined color space. The color information acquisition unit acquires color information of each image that is displayed on the display device in accordance with a corresponding piece of color-conversion image information among the pieces of color-conversion image information that have been transmitted by the image information transmission unit. The conversion relationship creation unit creates, on the basis of the color information that has been acquired by the color information acquisition unit, a conversion relationship for a color of an image to be displayed on the display device.
    Type: Application
    Filed: October 18, 2013
    Publication date: July 31, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Daigo HAMA, Noriko SAKAI, Toshihiro IWAFUCHI, Kazuhiko HORIKAWA, Makoto FUJIO, Chizuru YAMAZAKI
  • Patent number: 8791953
    Abstract: A method of adjusting value includes calculating a value of saturation from an input image signal, and adjusting a value of value of the input image signal according to a calculated saturation value. In the method, the value of value of the input image signal is adjusted by using a value adjustment algorithm for determining a value adjustment rate that decreases the value according to the saturation value.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: July 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung-dal Kwon, Dong-yul Lee, See-wook Park, Yoon-kyung Choi, Hwa-hyun Cho
  • Patent number: 8791954
    Abstract: Image data systems and methods combine a plurality of images into a single multiple-palette image data file, or generate a selected image from the multiple-palette image data file. An exemplary embodiment receives first pixel information for a first pixel of a first image, the first pixel having a first color; receives second pixel information for a like-located second pixel of a second image, the second pixel having a second color; and specifies a color palette location value that identifies a first color palette array element in a first color palette of the first image and identifies a second like-located color palette array element in a second color palette of the second image. First color information stored in the first color palette array element defines the first pixel color. Second color information stored in the second image data color palette array element defines the second pixel color.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 29, 2014
    Assignee: EchoStar Technologies L.L.C.
    Inventors: Joshua Engelbert, Bill Ivanich
  • Publication number: 20140192080
    Abstract: A control of gobos defend by records in the gobo. The gobos are formed by menued shapes.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 10, 2014
    Applicant: PRODUCTION RESOURCE GROUP L.L.C
    Inventor: Mark A. Hunt
  • Patent number: 8773469
    Abstract: A video multiviewer system may include a plurality of video scalers operating in parallel for generating initially scaled video streams by performing video scaling in at least one dimension on a plurality of video input streams. The video multiviewer system may also include at least one video cross-point switcher coupled downstream from the video scalers, and a processing unit coupled downstream from the video cross-point switcher for generating additionally scaled video streams by performing additional video scaling on the initially scaled video stream. The video scalers and the processing unit may communicate through the video cross-point switcher using a serial digital interface.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: July 8, 2014
    Assignee: Imagine Communications Corp.
    Inventors: Marcin Andrzej Komorowski, Cristian Camer, Anthony Singh
  • Patent number: 8767006
    Abstract: A method of producing a color image comprising providing input image data from an image source such as a camera; generating an at least three-dimensional look-up table of values of input colors and output colors, wherein the values in the lookup table convert the input image color data to output image color data in an image rendering unit; loading the at least three-dimensional look-up table into an image color rendering controller; loading the input image data into the imaging color rendering controller; processing the input image data through the at least three-dimensional look-up table to produce output color values stored at the addresses in the at least three-dimensional look-up table; and outputting the output color values to the image rendering unit to produce an output image that is perceived to have at least one of enhanced brightness, enhanced contrast, or enhanced colorfulness compared to the input image.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: July 1, 2014
    Assignee: Entertainment Experience LLC
    Inventors: James R. Sullivan, Rodney L. Heckaman
  • Patent number: 8767002
    Abstract: System and methods are provided for performing saturation adjustment of one or more pixels. In one embodiment, an input color value of a pixel is received. The input color value includes an input saturation component. An adjusted color value is extracted from a predetermined look-up table that maps the input color value to the adjusted color value, the adjusted color value having an adjusted saturation component that is different from the input saturation component. The adjusted color value is output.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: July 1, 2014
    Assignee: Marvell World Trade Ltd.
    Inventors: Samson Huang, Alice Hsia
  • Patent number: 8743141
    Abstract: Color lookup table smoothing employs propagation of a portion of an adjustment of a modified node to an unmodified node of a color lookup table (CLUT).
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: June 3, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter Morovic, Jan Morovic, Manuel Ángel Albarrán Moyo
  • Patent number: 8743142
    Abstract: A present invention pixel processing system and method permit complicated three dimensional images to be rendered with shallow graphics pipelines including reduced gate counts and facilitates power conservation by utilizing a single unified data fetch stage (e.g., unified data fetch module) that retrieves a variety of different pixel surface attribute values (e.g., depth, color, and/or texture values) in a single stage. Different types of pixel surface attribute data (e.g., depth, color, texture) associated with multiple graphics processing functions (e.g., color blending, texture mapping, etc.) are retrieved in the single unified data fetch graphics pipeline stage. The pixel surface attribute values may be placed in corresponding variable fields of a pixel packet row. The pixel packet rows including the pixel surface attribute values are forwarded to downstream graphics pipeline stages (e.g., an arithmetic logic pipestage).
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: June 3, 2014
    Assignee: Nvidia Corporation
    Inventors: Edward A. Hutchins, Brian K. Angell
  • Patent number: 8736631
    Abstract: The display color of, for example, a button image responsive to a command input into a facility operation display device is controlled by a palette value having a smaller number of bits than an RGB value. When the display color of the button image is changed, the palette value of a drawing object associated with the button image is changed to an RGB value. This eliminates the necessity of incorporating, for example, a high-performance CPU as a central arithmetic unit. In addition, it is not necessary to pre-store images corresponding to several kinds of display colors specified by RGB values, to thereby eliminates the necessity of incorporating, for example, a high-capacity storage medium in the facility operation display device. Accordingly, the device cost can be reduced.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: May 27, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takuya Mukai, Masanori Nakata, Yoshiaki Koizumi, Makoto Katsukura, Noriyuki Kushiro
  • Patent number: 8725801
    Abstract: Certain embodiments of the present invention provide a method for image sharing and display. The method includes selecting an image, establishing a context with a peer workstation, and displaying an image on the peer workstation based on the established context. The context may include an image sharing coordinate system, the displayed data types, the coordinates of displayed data types, and lookup tables for image data types. Certain embodiments of the present invention provide a system for image sharing and display. The system includes a master workstation and a peer workstation. The peer workstation includes a display device adapted to display an image based at least in part on information received from the master workstation. The information received from the master workstation may include an image sharing coordinate system, the displayed data types, the coordinates of displayed data types, and lookup tables for image data types.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: May 13, 2014
    Assignee: General Electric Company
    Inventors: Murali Kumaran Kariathungal, Prakash Mahesh
  • Patent number: 8717379
    Abstract: A color conversion table creating device for creating a color conversion table for converting first color data defined in a first color space to second color data defined in a second color space different from the first color space, includes a first data acquiring unit, a reference value determining unit, a lightness judging unit, a third data determining unit, and a creating unit. The first data acquiring unit is configured to acquire a plurality of sets of first data defined in the first color space. The first data sets are determined by measuring test patches each corresponding to a set of second data defined in the second color space. The first data sets include a set of black color data corresponding to data representing black in the second color space. Each first data set has a lightness value. The reference value determining unit is configured to determine a reference value based on a lightness value of the black color data set.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: May 6, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Masashi Kuno
  • Publication number: 20140104305
    Abstract: A display apparatus includes a display unit which includes a plurality of pixels having an organic light emitting diode (OLED), a power supply which supplies power to the display unit, an image processor which processes an input image to display an image on the display unit, and a controller which determines whether an average picture level (APL) of the input image is a predetermined value or more. Based on the APL value, the controller controls the image processor to compensate for a gray scale of the input image to thereby increase a brightness of the input image, and controls the power supply to reduce the power supply corresponding to the brightness increased as a result of the compensated gray scale.
    Type: Application
    Filed: August 12, 2013
    Publication date: April 17, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun-jeong Ryu, Hong-ju Na
  • Publication number: 20140092122
    Abstract: There is provided an image display apparatus including: a setting unit, a correcting unit and a displaying unit. The setting unit sets an amount of correction value for at least one of lightness and chroma for each hues, wherein the amount of correction values are determined so that a relative relationship of evaluation values among the hues is kept from varying before and after correction, the evaluation values being values defined depending on lightness and chroma for the hues. The correcting unit obtains a corrected image by correcting at least one of the lightness and the chroma of the input image according to the amount of correction. The displaying unit displays the corrected image.
    Type: Application
    Filed: September 26, 2013
    Publication date: April 3, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuma SANO, Ryosuke NONAKA, Masahiro BABA
  • Patent number: 8687014
    Abstract: A process and circuit for blending a foreground image (B) with a background image (A), said foreground and background images being arranged in pixels and having color representations (R, G, B). The foreground foreground image (A) has a transparency parameter (T(x,y)) in accordance with a so-called alpha plane representative of the transparency profile to apply to the foreground image. The process involves the steps of: -applying a dithering method on said alpha plane in order to convert said transparency parameter (T) into a one-bit transparency parameter (T?); -use said one-bit transparency parameter (T?) for controlling a multiplexing unit having two inputs respectively receiving the foreground image (A) and the background image (B). In one embodiment, the one-bit transparency parameter T? into the two extreme values of a range of continuous values, for instance coded on 8 bits.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: April 1, 2014
    Assignee: ST-Ericsson SA
    Inventors: David Coupe, Gilles Spinelli
  • Patent number: 8648868
    Abstract: The described embodiments provide a system that facilitates a switch from using a first graphics-processing unit (GPU) to using a second GPU to drive a display. During operation, upon generation of a request to switch from using the first GPU to using the second GPU as a signal source for driving the display, the system obtains a transform (such as a lookup table) that enables the displayed color output from the second GPU to substantially match the displayed color output from the first GPU. The system then makes the transform available for use by the second GPU in driving the display.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: February 11, 2014
    Assignee: Apple Inc.
    Inventors: Gabriel G. Marcu, Steve Swen
  • Patent number: 8643664
    Abstract: A gamut converting device that applies gamut conversion to image data includes a signal converting unit that performs, when a negative value is included in an image signal value forming the image data, processing for converting the image signal value forming the image data to eliminate the negative value from the image signal value and a gamut converting unit that applies the gamut conversion to the image data, the image signal value of which is converted by the signal converting unit.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: February 4, 2014
    Assignee: Sony Corporation
    Inventors: Yuki Matsuoka, Norihiko Kawada
  • Patent number: 8643662
    Abstract: A system and method for dynamically changing the display parameters of a display device. The system includes a server that obtains information about display content, environmental factors and user preferences affecting the display device. This information is used to generate initial display parameters which can be downloaded to the display device. The display device can use the initial display parameters to select final display parameters based upon sensed real-time information about the display device, the user preferences and environmental factors affecting the display device.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: February 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dang Van Tran, Esther Zheng
  • Patent number: 8638339
    Abstract: A method is for correcting pixel data provided to a display apparatus. The display apparatus includes a display panel having a plurality of pixels and a light source module having a plurality of light-emitting blocks. The method includes determining a pixel luminance that is a luminance of light provided to one of the pixels; and generating correction data to correct the pixel data, the correction data being generated based on the pixel luminance and a maximum emission luminance that is a maximum luminance of the light emitted from one of the light-emitting blocks.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: January 28, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Weon-Jun Choe, Yun-Jae Park, Dae-Gwang Jang, Kyoung-Phil Kim, Sang-Su Han
  • Patent number: 8638474
    Abstract: An image processing apparatus includes a plurality of color conversion tables for color-separation-limited printing. Using a color conversion table for color-separation-limited printing, a piece of input color information corresponding to chromatic color within a specified applying hue range for a specified specific color is converted into a piece of output color information corresponding to color having hue of the specific color, and a piece of the input color information corresponding to color outside of the applying hue range is converted into a piece of the output color information corresponding to gray color. Each of the color conversion tables for color-separation-limited printing is configured such that color values corresponding to saturation and lightness of the output color information are reduced at least in gradation from a maximum saturation part to a low-lightness part.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: January 28, 2014
    Assignee: Ricoh Company-Limited
    Inventor: Takehiro Nakajima
  • Patent number: 8625160
    Abstract: A color adjustment method includes a color adjustment step to obtain an adjusted CMYK value from an output CMYK value using a color adjustment table. The color adjustment table is to convert the output CMYK value into the adjusted CMYK value and created based on first and third tables. The third table is created based on: a CMYK value determined by C, M and Y values and a K value found from the C, M and Y values, the CMYK value having a proportion of the K value to the CMYK value larger than the proportion used when a second table is created; and a relationship between the CMYK value and the output color value for the CMYK value. This relationship is obtained based on a relationship between an input CMYK value and the output color value of the first table.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 7, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Toru Hoshino
  • Patent number: 8610654
    Abstract: A display that includes at least one gray level being provided to a plurality of pixels that illuminates each of the pixels with the gray level. The display applies interpolated corrective data for the pixels so as to reduce the mura effects of said display and modifies the backlight of the display.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: December 17, 2013
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Louis Joseph Kerofsky, Yasuo Ozawa
  • Patent number: 8605111
    Abstract: Disclosed is a method for correcting color in a portable image projector in consideration of an effect of a background color when the portable image projector projects images. The method corrects the effect of the background color to be projected, using color constancy technique, and thereby represents high-quality image which can be projected on a white screen. The method includes the steps of determining if a background color exists on a projection screen using a portable camera, converting the size of a mask image in order to connect a spatial position of an original image and an image photographed by a camera, correcting brightness of the mask image in order to correct non-homogeneity of the brightness of the projected image due to the distribution of different brightness values of the background color, and correcting the background color in order to correct color distortion of the image projected in different colors on the background color.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: December 10, 2013
    Assignees: Samsung Electronics Co., Ltd., Kyungpook National University Industry-Aademic Cooperation Foundation
    Inventors: Jae-Won Moon, Sung-Dae Cho, Young-Min Jeong, Jong-Man Kim, Yun-Je Oh, Young-Ho Ha, Chul-Hee Lee, Chang-Hwan Son, In-Su Jang
  • Patent number: 8605327
    Abstract: An image forming apparatus and a color correction method, and a host apparatus to correct the color of an output image using the color correction method. The image forming apparatus can include a table correction unit to correct the color conversion table based on monitor information, and a color conversion unit to convert the input image into the output image using the corrected color conversion table. Accordingly, the color of a displayed image can match that of a print output regardless of the status of the display apparatus.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 10, 2013
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Chang-hwan Son, Kyeong-man Kim, Jung-ho Bang, Yeong-ho Ha, In-su Jang
  • Patent number: 8599214
    Abstract: A method for communicating an image section between a first computer and a second computer, the first computer adapted for remotely coupling to the second computer via a network. The method comprises determining, by the first computer, a color table comparison result for an input pixel value, the color table comparison result identifying one of (i) an indexed color value of a color table, the indexed color value approximating the input pixel value, or (ii) an absence in the color table of any color value approximating the input pixel value; generating, based on the color table comparison result, encoded data comprising one of a derivative of the input pixel value or an index for the indexed color value; communicating, to the second computer, the encoded data; and updating the color table according to the color table comparison result.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: December 3, 2013
    Assignee: Teradici Corporation
    Inventors: William John Dall, David Victor Hobbs
  • Publication number: 20130314436
    Abstract: An image display device includes a microcomputer and LUTs which are tables of correction data used to correct color balance of images. The microcomputer sets LUT extensions and calculates the LUTs based on: (1) the normalized values GainLn of the L conforming adjustment values GainL and the normalized values GainHn of the H conforming adjustment values GainH; (2) the normalized values Lin of the input values Liref of the image data of the L adjustment image and the normalized values Hin of the input values Hiref of the image data of the H adjustment image; (3) the correction data of the LUTs; and (4) the correction data of the LUT extension units.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 28, 2013
    Applicant: Funai Electric Co., Ltd.
    Inventor: Yuya NAKAMURA
  • Patent number: 8593482
    Abstract: A projector including: an adjustment image generation section which generates an adjustment image which allows adjustments of brightness and color difference; an input section to which operation information is input; an adjustment information generation section which generates brightness adjustment information indicating an adjustment value of the brightness and color difference adjustment information indicating an adjustment value of the color difference based on the operation information; and an adjustment section which adjusts the brightness and color of an image based on the brightness adjustment information and the color difference adjustment information.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: November 26, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Shiki Furui
  • Patent number: 8581925
    Abstract: A data correcting method is disclosed to implement an optimum picture quality according to surrounding conditions. The data correcting method includes: converting the input data into XYZ color space data; converting the XYZ color space data into JCh color space data by applying a reference illuminance parameter to a CIECAM02 forward algorithm; inversely converting the JCh color space data into the XYZ color space data by the illuminance by sequentially applying a plurality of illuminance parameters different from the reference illuminance, to a CIECAM02 backward algorithm; inversely converting the inversely converted XYZ color space data into an RGB color space to produce correction data of each illuminance; and making a look-up table by mapping the produced correction data of each illuminance to the input data.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: November 12, 2013
    Assignee: LG Display Co. Ltd.
    Inventors: Dongyou Lee, Sunah Park, Hoyoung Jung
  • Patent number: 8581906
    Abstract: According to one embodiment, an image processing apparatus includes a level storage module, an instruction receiving module, a switching module, and a resolution increasing module. The level storage module stores a super-resolution level in association with a video mode that indicates definition to display a video signal. The super-resolution level indicates intensity of super-resolution conversion, in which from a video signal having first resolution, a video signal is obtained that has second resolution higher than the first resolution. The instruction receiving module receives an instruction specifying a video mode. The switching module switches a video mode to the specified video mode. The resolution increasing module performs the super-resolution conversion at a super-resolution level corresponding to the specified video mode.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: November 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Munehiro Terada, Kenichi Nagai
  • Publication number: 20130286040
    Abstract: A semiconductor device includes an adjustment data generation unit receiving at least a part of adjustment values of color attributes of each of n-axis vertices (n is an integer not less than 3), the n axes serving as an adjustment axis in a RGB color space. The adjustment data generation unit calculates the degree of influence which indicates the following index of each of the n-axis vertices based on the distance between each of the n-axis vertices and a target point which is an arbitrary lattice point in the RGB color space. The adjustment data generation unit calculates adjusted coordinates of the target point in the RGB color space based on shifting of each of the n-axis vertices in the RGB color space according to the adjustment value and the degree of influence. The image adjustment unit performs color adjustment of inputted image data.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 31, 2013
    Applicant: Renesas Electronics Corporation
    Inventor: Hirofumi Kawaguchi