DE3586506T2 - Monochromatische darstellung von farbbildern. - Google Patents

Monochromatische darstellung von farbbildern.

Info

Publication number
DE3586506T2
DE3586506T2 DE8585103814T DE3586506T DE3586506T2 DE 3586506 T2 DE3586506 T2 DE 3586506T2 DE 8585103814 T DE8585103814 T DE 8585103814T DE 3586506 T DE3586506 T DE 3586506T DE 3586506 T2 DE3586506 T2 DE 3586506T2
Authority
DE
Germany
Prior art keywords
color images
monochromatic representation
monochromatic
representation
images
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.)
Expired - Fee Related
Application number
DE8585103814T
Other languages
English (en)
Other versions
DE3586506D1 (de
Inventor
William T Haggerty
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.)
WANG LABORATORIES, INC., BILLERICA, MASS., US
Original Assignee
Wang Laboratories Inc
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 Wang Laboratories Inc filed Critical Wang Laboratories Inc
Application granted granted Critical
Publication of DE3586506D1 publication Critical patent/DE3586506D1/de
Publication of DE3586506T2 publication Critical patent/DE3586506T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/028—Circuits for converting colour display signals into monochrome display signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40012—Conversion of colour to monochrome
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2215/00—Arrangements for producing a permanent visual presentation of the output data
    • G06K2215/0082—Architecture adapted for a particular function
    • G06K2215/0094—Colour printing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2044—Display of intermediate tones using dithering
    • G09G3/2051—Display of intermediate tones using dithering with use of a spatial dither pattern
DE8585103814T 1984-03-30 1985-03-29 Monochromatische darstellung von farbbildern. Expired - Fee Related DE3586506T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/595,027 US4688031A (en) 1984-03-30 1984-03-30 Monochromatic representation of color images

Publications (2)

Publication Number Publication Date
DE3586506D1 DE3586506D1 (de) 1992-09-24
DE3586506T2 true DE3586506T2 (de) 1993-04-01

Family

ID=24381411

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585103814T Expired - Fee Related DE3586506T2 (de) 1984-03-30 1985-03-29 Monochromatische darstellung von farbbildern.

Country Status (6)

Country Link
US (1) US4688031A (de)
EP (1) EP0158902B1 (de)
JP (1) JPS6138985A (de)
AU (1) AU3513684A (de)
CA (1) CA1236940A (de)
DE (1) DE3586506T2 (de)

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Also Published As

Publication number Publication date
EP0158902B1 (de) 1992-08-19
EP0158902A3 (en) 1989-09-06
CA1236940A (en) 1988-05-17
DE3586506D1 (de) 1992-09-24
EP0158902A2 (de) 1985-10-23
AU3513684A (en) 1985-10-03
JPS6138985A (ja) 1986-02-25
US4688031A (en) 1987-08-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: WANG LABORATORIES, INC., BILLERICA, MASS., US

8339 Ceased/non-payment of the annual fee