FR2354010A1 - Procede et dispositif d'interpolation d'echelle des gris - Google Patents

Procede et dispositif d'interpolation d'echelle des gris

Info

Publication number
FR2354010A1
FR2354010A1 FR7716876A FR7716876A FR2354010A1 FR 2354010 A1 FR2354010 A1 FR 2354010A1 FR 7716876 A FR7716876 A FR 7716876A FR 7716876 A FR7716876 A FR 7716876A FR 2354010 A1 FR2354010 A1 FR 2354010A1
Authority
FR
France
Prior art keywords
gray scale
interpolation method
scale interpolation
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.)
Granted
Application number
FR7716876A
Other languages
English (en)
Other versions
FR2354010B1 (fr
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of FR2354010A1 publication Critical patent/FR2354010A1/fr
Application granted granted Critical
Publication of FR2354010B1 publication Critical patent/FR2354010B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Facsimile Image Signal Circuits (AREA)
FR7716876A 1976-06-03 1977-06-02 Procede et dispositif d'interpolation d'echelle des gris Granted FR2354010A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/692,604 US4032977A (en) 1976-06-03 1976-06-03 Gray scale interpolation technique

Publications (2)

Publication Number Publication Date
FR2354010A1 true FR2354010A1 (fr) 1977-12-30
FR2354010B1 FR2354010B1 (fr) 1984-05-04

Family

ID=24781270

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716876A Granted FR2354010A1 (fr) 1976-06-03 1977-06-02 Procede et dispositif d'interpolation d'echelle des gris

Country Status (7)

Country Link
US (1) US4032977A (fr)
JP (1) JPS5322309A (fr)
CA (1) CA1097792A (fr)
DE (1) DE2724967A1 (fr)
FR (1) FR2354010A1 (fr)
GB (1) GB1530114A (fr)
NL (1) NL7706138A (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2009568B (en) * 1977-11-28 1982-03-24 Nippon Telegraph & Telephone Picture signal coding apparatus
US4215414A (en) * 1978-03-07 1980-07-29 Hughes Aircraft Company Pseudogaussian video output processing for digital display
US4193092A (en) * 1978-06-21 1980-03-11 Xerox Corporation Image interpolation system
DE2963153D1 (en) * 1978-06-26 1982-08-12 Environmental Res Inst Apparatus and method for generating a transformation of a first data matrix to form a second data matrix
GB2038142B (en) * 1978-12-15 1982-11-24 Ibm Image data compression
US4194221A (en) * 1978-12-26 1980-03-18 Xerox Corporation Automatic multimode continuous halftone line copy reproduction
US4259694A (en) * 1979-08-24 1981-03-31 Xerox Corporation Electronic rescreen technique for halftone pictures
US4280144A (en) * 1979-12-03 1981-07-21 International Business Machines Corporation Coarse scan/fine print algorithm
US4387395A (en) * 1981-04-08 1983-06-07 Satellite Business Systems Facsimile to video converter
US4437122A (en) 1981-09-12 1984-03-13 Xerox Corporation Low resolution raster images
US4630307A (en) * 1984-09-10 1986-12-16 Eastman Kodak Company Signal processing method and apparatus for sampled image signals
EP0717551B1 (fr) * 1986-02-14 2000-05-17 Canon Kabushiki Kaisha Dispositif de traitement d'image
USH996H (en) 1987-01-20 1991-11-05 Recognition Equipment Incorporated High resolution page image display system
US5025480A (en) * 1987-03-23 1991-06-18 Eastman Kodak Company Background referencing
JPS63245569A (ja) * 1987-03-31 1988-10-12 Yokogawa Medical Syst Ltd 画像表示処理装置
US4924521A (en) * 1987-12-18 1990-05-08 International Business Machines Corporation Image processing system and method employing combined black and white and gray scale image data
US7382929B2 (en) 1989-05-22 2008-06-03 Pixel Instruments Corporation Spatial scan replication circuit
JPH0767821B2 (ja) * 1990-02-26 1995-07-26 株式会社リコー 画像形成方法
US6009193A (en) * 1990-05-16 1999-12-28 Canon Kabushiki Kaisha Method and apparatus for converting N-value image to M-value image, for < NM
US6016154A (en) * 1991-07-10 2000-01-18 Fujitsu Limited Image forming apparatus
US5351084A (en) * 1992-07-02 1994-09-27 Global Telecommunications Industries, Inc. Compressed video bit rate reduction system
US6181826B1 (en) 1992-07-22 2001-01-30 Eastman Kodak Company Method and associated apparatus for achieving additional signal level resolution from a quantized digital representation of an image
JP2978672B2 (ja) * 1993-01-28 1999-11-15 株式会社東芝 記録装置
JP3119150B2 (ja) * 1995-02-02 2000-12-18 富士ゼロックス株式会社 画像処理装置および画像処理方法
US5657430A (en) * 1996-03-07 1997-08-12 Hewlett-Packard Company Software-based procedure for conversion of a scalable font character bitmap to a gray level bitmap
US5754751A (en) * 1996-03-07 1998-05-19 Hewlett-Packard Company Software-based procedure and apparatus for enhancement of a gray level image
US5809217A (en) * 1997-01-10 1998-09-15 Hewlett-Packard Company Method and apparatus for deriving additional gray levels in a multi-gray level halftone image
JP5344918B2 (ja) * 2006-07-25 2013-11-20 株式会社Ｒｏｓｅｃｃ ３次元自動切断方法及び装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921124A (en) * 1956-12-10 1960-01-12 Bell Telephone Labor Inc Method and apparatus for reducing television bandwidth
DE2224066A1 (de) * 1972-05-17 1973-12-06 Siemens Ag Verfahren und einrichtung zur uebertragung der in schwarzweissen graphischen vorlagen enthaltenen bildinformationen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344312A (en) * 1971-08-27 1974-01-23 Post Office Digital encoding system
DE2358921B2 (de) * 1973-11-27 1976-12-09 Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg Semiparallele bildverarbeitung mittels bewegter rezeptorspalte und zweidimensionalem elektronischen speicherfeld

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921124A (en) * 1956-12-10 1960-01-12 Bell Telephone Labor Inc Method and apparatus for reducing television bandwidth
DE2224066A1 (de) * 1972-05-17 1973-12-06 Siemens Ag Verfahren und einrichtung zur uebertragung der in schwarzweissen graphischen vorlagen enthaltenen bildinformationen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/76 *

Also Published As

Publication number Publication date
FR2354010B1 (fr) 1984-05-04
JPS5322309A (en) 1978-03-01
NL7706138A (nl) 1977-12-06
CA1097792A (fr) 1981-03-17
GB1530114A (en) 1978-10-25
US4032977A (en) 1977-06-28
DE2724967A1 (de) 1977-12-15

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Legal Events

Date Code Title Description
ST Notification of lapse