CA2019526A1 - Color mapping system and method - Google Patents

Color mapping system and method

Info

Publication number
CA2019526A1
CA2019526A1 CA2019526A CA2019526A CA2019526A1 CA 2019526 A1 CA2019526 A1 CA 2019526A1 CA 2019526 A CA2019526 A CA 2019526A CA 2019526 A CA2019526 A CA 2019526A CA 2019526 A1 CA2019526 A1 CA 2019526A1
Authority
CA
Canada
Prior art keywords
colors
averaged
perceived
color
palette
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2019526A
Other languages
French (fr)
Other versions
CA2019526C (en
Inventor
John J. Deacon
Albert D. Edgar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2019526A1 publication Critical patent/CA2019526A1/en
Application granted granted Critical
Publication of CA2019526C publication Critical patent/CA2019526C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/001—Texturing; Colouring; Generation of texture or colour

Abstract

RGB components of pairs of adjacent pels of a captured digitized image are averaged. A perceived color palette is constructed, each color being com-prised of functionally combined RGB components of two different input palette colors. An array is formed of continuous colors, each indexed to the perceived palette color to which its RGB components are closest and indicating the two input palette colors defining the respective perceived color. RGB components for each averaged pel pair and the array index are then used to locate the perceived color closest thereto and, the two input palette colors corresponding to the perceived color. These two input colors are then substituted in a display for those of the two averaged pels and the process repeated for all averaged pel pairs. In a preferred embodiment, the difference between the perceived and averaged colors is diffused to adjacent averaged pels. An image is thereby readily produced having substantially more perceived colors than those available in the input palette.
CA002019526A 1989-09-28 1990-06-21 Color mapping system and method Expired - Fee Related CA2019526C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US413,918 1989-09-28
US07/413,918 US5119186A (en) 1989-09-28 1989-09-28 Color mapping system and method

Publications (2)

Publication Number Publication Date
CA2019526A1 true CA2019526A1 (en) 1991-03-28
CA2019526C CA2019526C (en) 1994-06-21

Family

ID=23639194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002019526A Expired - Fee Related CA2019526C (en) 1989-09-28 1990-06-21 Color mapping system and method

Country Status (4)

Country Link
US (1) US5119186A (en)
EP (1) EP0420391A3 (en)
JP (1) JP2566670B2 (en)
CA (1) CA2019526C (en)

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JPH04246690A (en) * 1990-08-29 1992-09-02 Xerox Corp Method of displaying image having high quality by normal resolution
US5210602A (en) * 1991-02-25 1993-05-11 International Business Machines Corporation Coupled-color error diffusion
US6034667A (en) * 1992-01-21 2000-03-07 Radius Inc. Method and apparatus for displaying YUV color information on a pseudo-color RGB display
US5463702A (en) * 1992-05-12 1995-10-31 Sony Electronics Inc. Perceptual based color-compression for raster image quantization
US5608851A (en) * 1992-06-17 1997-03-04 Toppan Printing Co., Ltd. Color variation specification method and a device therefor
US5677967A (en) * 1993-03-10 1997-10-14 R. R. Donnelley & Sons Company Method of and apparatus for converting between a color appearance space and a colorant space
JPH06325170A (en) * 1993-05-14 1994-11-25 Canon Inc Image processor
EP0674430A1 (en) 1994-03-24 1995-09-27 Eastman Kodak Company Method and apparatus for interactive color transformation of color values between color spaces
US5638190A (en) * 1994-03-29 1997-06-10 Clemson University Context sensitive color quantization system and method
US5675716A (en) * 1994-10-11 1997-10-07 Seiko Epson Corporation Method and apparatus for vivid color correction in binary printing devices
US5513991A (en) * 1994-12-02 1996-05-07 Vamp, Inc. Method of simulating personal individual art instruction
US7171045B1 (en) * 2001-12-28 2007-01-30 Packeteer, Inc. System and method for determining a natural color depth of a digital image
US7738917B2 (en) * 2003-03-31 2010-06-15 Vtech Telecommunications Limited Intercom/wireless door bell for multi-handset telephone system
JP4305071B2 (en) * 2003-06-30 2009-07-29 株式会社ニコン Signal correction method
EP2164044B1 (en) * 2003-07-04 2012-04-18 Mitsubishi Electric Information Technology Centre Europe B.V. Method and apparatus for representing a group of images
US20060066629A1 (en) * 2004-09-30 2006-03-30 Microsoft Corporation System and method for color selection
TWI284834B (en) * 2005-11-18 2007-08-01 Via Tech Inc Method for controlling colors of on screen display system
US8013869B2 (en) * 2006-09-13 2011-09-06 Adobe Systems Incorporated Color selection interface
US7864193B2 (en) * 2007-07-02 2011-01-04 International Business Machines Corporation RGB color conversion palettes
US7902886B2 (en) * 2007-10-30 2011-03-08 Diablo Technologies Inc. Multiple reference phase locked loop
US8107724B2 (en) 2008-08-02 2012-01-31 Vantrix Corporation Method and system for predictive scaling of colour mapped images
JP2012085029A (en) * 2010-10-08 2012-04-26 Fujitsu Semiconductor Ltd Image processing device
EP3158744A4 (en) * 2014-06-19 2017-07-26 HFI Innovation Inc. Method and apparatus of candidate generation for single sample mode in video coding
CN109073454B (en) * 2016-04-20 2021-12-21 徕卡生物系统成像股份有限公司 Digital pathology color calibration and verification

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232311A (en) * 1979-03-20 1980-11-04 Chyron Corporation Color display apparatus
DE3110222C2 (en) * 1981-03-17 1985-06-20 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Process for partial smoothing retouching in electronic color image reproduction
US4477833A (en) * 1981-08-12 1984-10-16 R. R. Donnelley & Sons Company Method of color conversion with improved interpolation
US4613948A (en) * 1984-06-01 1986-09-23 Bell Communications Research, Inc. Conditional quantization grey level and color image coding apparatus
US4638373A (en) * 1985-03-06 1987-01-20 Metromedia, Inc. Method and apparatus for improving gray scale resolution in an ink jet printing system
US4712141A (en) * 1985-03-30 1987-12-08 Dainippon Screen Mfg. Co., Ltd. Method and apparatus for interpolating image signals
JPS61290884A (en) * 1985-06-19 1986-12-20 Dainippon Printing Co Ltd Image information converting method
US4907075A (en) * 1987-07-28 1990-03-06 International Business Machines Corporation Method for selecting colors

Also Published As

Publication number Publication date
EP0420391A2 (en) 1991-04-03
EP0420391A3 (en) 1993-03-17
US5119186A (en) 1992-06-02
JPH04151779A (en) 1992-05-25
JP2566670B2 (en) 1996-12-25
CA2019526C (en) 1994-06-21

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