ATE195206T1 - 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
ATE195206T1
ATE195206T1 AT92901101T AT92901101T ATE195206T1 AT E195206 T1 ATE195206 T1 AT E195206T1 AT 92901101 T AT92901101 T AT 92901101T AT 92901101 T AT92901101 T AT 92901101T AT E195206 T1 ATE195206 T1 AT E195206T1
Authority
AT
Austria
Prior art keywords
pixel
blue noise
disclosed
gray scale
image
Prior art date
Application number
AT92901101T
Other languages
English (en)
Inventor
Kevin J Parker
Theophano Mitsa
Original Assignee
Res 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=ATE195206(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Res Corp Technologies Inc filed Critical Res Corp Technologies Inc
Application granted granted Critical
Publication of ATE195206T1 publication Critical patent/ATE195206T1/de

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Holo Graphy (AREA)
  • Color Image Communication Systems (AREA)
AT92901101T 1990-12-04 1991-12-03 Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen ATE195206T1 (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 (1)

Publication Number Publication Date
ATE195206T1 true ATE195206T1 (de) 2000-08-15

Family

ID=24492766

Family Applications (3)

Application Number Title Priority Date Filing Date
AT92901101T ATE195206T1 (de) 1990-12-04 1991-12-03 Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen
AT96201205T ATE203134T1 (de) 1990-12-04 1991-12-03 Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen
AT96201206T ATE191594T1 (de) 1990-12-04 1991-12-03 Dither matrix zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen

Family Applications After (2)

Application Number Title Priority Date Filing Date
AT96201205T ATE203134T1 (de) 1990-12-04 1991-12-03 Verfahren und gerät zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen
AT96201206T ATE191594T1 (de) 1990-12-04 1991-12-03 Dither matrix zur halbtonwiedergabe von grautonbildern unter verwendung einer maskierung mit blauem rauschen

Country Status (10)

Country Link
US (1) US5111310A (de)
EP (4) EP0560872B1 (de)
JP (1) JP2622429B2 (de)
AT (3) ATE195206T1 (de)
AU (1) AU9088491A (de)
CA (1) CA2097508C (de)
DE (4) DE69132658T2 (de)
ES (3) ES2161325T3 (de)
IE (3) IE20000938A1 (de)
WO (1) WO1992010905A1 (de)

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* Cited by examiner, † Cited by third party
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JP7481935B2 (ja) * 2020-07-21 2024-05-13 キヤノン株式会社 画像処理装置、画像処理方法
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JP7564698B2 (ja) 2020-12-08 2024-10-09 キヤノン株式会社 画像処理装置およびその制御方法

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ES2161325T3 (es) 2001-12-01
EP0746142A1 (de) 1996-12-04
EP0749231B1 (de) 2001-07-11
WO1992010905A1 (en) 1992-06-25
DE69132104T2 (de) 2000-08-24
DE69132104D1 (de) 2000-05-11
IE20000938A1 (en) 2001-03-21
ES2081270T3 (es) 2000-12-16
EP0749232B1 (de) 2000-04-05
DE69132658T2 (de) 2001-11-15
ATE191594T1 (de) 2000-04-15
EP0560872B1 (de) 2000-08-02
CA2097508A1 (en) 1992-06-05
JP2622429B2 (ja) 1997-06-18
JPH06508007A (ja) 1994-09-08
ES2146832T3 (es) 2000-08-16
ATE203134T1 (de) 2001-07-15
EP0749231A1 (de) 1996-12-18
AU9088491A (en) 1992-07-08
IE914190A1 (en) 1992-06-17
EP0560872A1 (de) 1993-09-22
DE69132353T2 (de) 2001-01-18
DE69132658D1 (de) 2001-08-16
EP0560872A4 (en) 1993-11-03
US5111310A (en) 1992-05-05
EP0749232A1 (de) 1996-12-18
CA2097508C (en) 2002-02-12
DE69132353D1 (de) 2000-09-07
ES2081270T1 (es) 1996-03-01
IE20000314A1 (en) 2000-11-01
DE560872T1 (de) 1996-02-15

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