DE69132353D1 - Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen - Google Patents

Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen

Info

Publication number
DE69132353D1
DE69132353D1 DE69132353T DE69132353T DE69132353D1 DE 69132353 D1 DE69132353 D1 DE 69132353D1 DE 69132353 T DE69132353 T DE 69132353T DE 69132353 T DE69132353 T DE 69132353T DE 69132353 D1 DE69132353 D1 DE 69132353D1
Authority
DE
Germany
Prior art keywords
pixel
blue noise
disclosed
mask
gray scale
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 - Lifetime
Application number
DE69132353T
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English (en)
Other versions
DE69132353T2 (de
Inventor
Kevin J Parker
Theophano Mitsa
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.)
Research Corp Technologies Inc
Original Assignee
Research Corp Technologies 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24492766&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69132353(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Research Corp Technologies Inc filed Critical Research Corp Technologies Inc
Publication of DE69132353D1 publication Critical patent/DE69132353D1/de
Application granted granted Critical
Publication of DE69132353T2 publication Critical patent/DE69132353T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4084—Scaling of whole images or parts thereof, e.g. expanding or contracting in the transform domain, e.g. fast Fourier transform [FFT] domain scaling
    • 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
    • H04N1/40075—Descreening, i.e. converting a halftone signal into a corresponding continuous-tone signal; Rescreening, i.e. combined descreening and halftoning
    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
    • 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
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/4105—Bandwidth or redundancy reduction for halftone screened pictures

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Holo Graphy (AREA)
DE69132353T 1990-12-04 1991-12-03 Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen Expired - Lifetime DE69132353T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/622,056 US5111310A (en) 1990-12-04 1990-12-04 Method and apparatus for halftone rendering of a gray scale image using a blue noise mask
PCT/US1991/008820 WO1992010905A1 (en) 1990-12-04 1991-12-03 Method and apparatus for halftone rendering of a gray scale image using a blue noise mask

Publications (2)

Publication Number Publication Date
DE69132353D1 true DE69132353D1 (de) 2000-09-07
DE69132353T2 DE69132353T2 (de) 2001-01-18

Family

ID=24492766

Family Applications (4)

Application Number Title Priority Date Filing Date
DE0560872T Pending DE560872T1 (de) 1990-12-04 1991-12-03 Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen.
DE69132104T Expired - Lifetime DE69132104T2 (de) 1990-12-04 1991-12-03 Dither matrix zur Halbtonwiedergabe von Grautonbildern unter Verwendung einer Maskierung mit blauem Rauschen
DE69132658T Expired - Lifetime DE69132658T2 (de) 1990-12-04 1991-12-03 Verfahren und Gerät zur Halbtonwiedergabe von Grautonbildern unter Verwendung einer Maskierung mit blauem Rauschen
DE69132353T Expired - Lifetime DE69132353T2 (de) 1990-12-04 1991-12-03 Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen

Family Applications Before (3)

Application Number Title Priority Date Filing Date
DE0560872T Pending DE560872T1 (de) 1990-12-04 1991-12-03 Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen.
DE69132104T Expired - Lifetime DE69132104T2 (de) 1990-12-04 1991-12-03 Dither matrix zur Halbtonwiedergabe von Grautonbildern unter Verwendung einer Maskierung mit blauem Rauschen
DE69132658T Expired - Lifetime DE69132658T2 (de) 1990-12-04 1991-12-03 Verfahren und Gerät zur Halbtonwiedergabe von Grautonbildern unter Verwendung einer Maskierung mit blauem Rauschen

Country Status (10)

Country Link
US (1) US5111310A (de)
EP (4) EP0749231B1 (de)
JP (1) JP2622429B2 (de)
AT (3) ATE203134T1 (de)
AU (1) AU9088491A (de)
CA (1) CA2097508C (de)
DE (4) DE560872T1 (de)
ES (3) ES2081270T3 (de)
IE (3) IE914190A1 (de)
WO (1) WO1992010905A1 (de)

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* Cited by examiner, † Cited by third party
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DE560872T1 (de) 1996-02-15
EP0749232A1 (de) 1996-12-18
ATE203134T1 (de) 2001-07-15
EP0749231A1 (de) 1996-12-18
DE69132658D1 (de) 2001-08-16
EP0560872A1 (de) 1993-09-22
EP0749231B1 (de) 2001-07-11
EP0749232B1 (de) 2000-04-05
JPH06508007A (ja) 1994-09-08
DE69132353T2 (de) 2001-01-18
ES2161325T3 (es) 2001-12-01
DE69132104D1 (de) 2000-05-11
DE69132658T2 (de) 2001-11-15
ATE191594T1 (de) 2000-04-15
ATE195206T1 (de) 2000-08-15
ES2081270T1 (es) 1996-03-01
IE20000938A1 (en) 2001-03-21
ES2146832T3 (es) 2000-08-16
ES2081270T3 (es) 2000-12-16
CA2097508C (en) 2002-02-12
US5111310A (en) 1992-05-05
EP0560872B1 (de) 2000-08-02
EP0746142A1 (de) 1996-12-04
WO1992010905A1 (en) 1992-06-25
IE20000314A1 (en) 2000-11-01
AU9088491A (en) 1992-07-08
EP0560872A4 (en) 1993-11-03
DE69132104T2 (de) 2000-08-24
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CA2097508A1 (en) 1992-06-05

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