DE69415763T2 - Verfahren zur Grössenreduktion eines Dokuments für eine optische Darstellung - Google Patents

Verfahren zur Grössenreduktion eines Dokuments für eine optische Darstellung

Info

Publication number
DE69415763T2
DE69415763T2 DE69415763T DE69415763T DE69415763T2 DE 69415763 T2 DE69415763 T2 DE 69415763T2 DE 69415763 T DE69415763 T DE 69415763T DE 69415763 T DE69415763 T DE 69415763T DE 69415763 T2 DE69415763 T2 DE 69415763T2
Authority
DE
Germany
Prior art keywords
document
reducing
size
optical representation
representation
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
DE69415763T
Other languages
English (en)
Other versions
DE69415763D1 (de
Inventor
Lawrence Patrick O'gorman
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.)
AT&T Corp
Original Assignee
AT&T 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 AT&T Corp filed Critical AT&T Corp
Publication of DE69415763D1 publication Critical patent/DE69415763D1/de
Application granted granted Critical
Publication of DE69415763T2 publication Critical patent/DE69415763T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • H04N1/393—Enlarging or reducing
    • H04N1/3935—Enlarging or reducing with modification of image resolution, i.e. determining the values of picture elements at new relative positions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • 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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement
DE69415763T 1993-10-15 1994-10-05 Verfahren zur Grössenreduktion eines Dokuments für eine optische Darstellung Expired - Lifetime DE69415763T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13756793A 1993-10-15 1993-10-15

Publications (2)

Publication Number Publication Date
DE69415763D1 DE69415763D1 (de) 1999-02-18
DE69415763T2 true DE69415763T2 (de) 1999-08-05

Family

ID=22478029

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69415763T Expired - Lifetime DE69415763T2 (de) 1993-10-15 1994-10-05 Verfahren zur Grössenreduktion eines Dokuments für eine optische Darstellung

Country Status (5)

Country Link
US (1) US5828792A (de)
EP (1) EP0649246B1 (de)
JP (1) JP2981133B2 (de)
CA (1) CA2128389C (de)
DE (1) DE69415763T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10285389A (ja) * 1997-04-11 1998-10-23 Nikon Corp 画像処理方法、画像処理装置、および、記録媒体
US6731790B1 (en) * 1999-10-19 2004-05-04 Agfa-Gevaert Method of enhancing color images
US6757449B1 (en) * 1999-11-17 2004-06-29 Xerox Corporation Methods and systems for processing anti-aliased images
US6832237B1 (en) * 2000-12-01 2004-12-14 Unisys Corporation Method and apparatus for selecting and/or changing the display resolution of HTML home pages in a web application development environment
WO2002080523A2 (en) * 2001-03-30 2002-10-10 Kodak Polychrome Graphics Automated sharpening of images for soft proofing
JP2007503641A (ja) * 2003-08-25 2007-02-22 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 画像強調
US7233708B2 (en) * 2003-11-07 2007-06-19 Microsoft Corporation Systems and methods for indexing and retrieving images
US7248268B2 (en) * 2004-04-09 2007-07-24 Clairvoyante, Inc Subpixel rendering filters for high brightness subpixel layouts

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421129A (en) * 1977-07-18 1979-02-17 Fuji Electric Co Ltd Flaw detection method by square difference system for length of circumference
US4571635A (en) * 1984-02-17 1986-02-18 Minnesota Mining And Manufacturing Company Method of image enhancement by raster scanning
US4783840A (en) * 1987-12-04 1988-11-08 Polaroid Corporation Method for enhancing image data by noise reduction or sharpening
US4941190A (en) * 1988-07-15 1990-07-10 Minnesota Mining And Manufacturing Company Method and system for enhancement of a digitized image
EP0372950B1 (de) * 1988-12-08 1995-07-05 Canon Kabushiki Kaisha Bildreduzierungsvorrichtung
US5038388A (en) * 1989-05-15 1991-08-06 Polaroid Corporation Method for adaptively sharpening electronic images
US5016104A (en) * 1989-06-22 1991-05-14 Massachusetts Institute Of Technology Receiver-compatible noise reduction systems
JP3003799B2 (ja) * 1990-03-28 2000-01-31 富士写真フイルム株式会社 画像の鮮鋭度強調方法及びその装置
US5218649A (en) * 1990-05-04 1993-06-08 U S West Advanced Technologies, Inc. Image enhancement system
US5526446A (en) * 1991-09-24 1996-06-11 Massachusetts Institute Of Technology Noise reduction system
US5331414A (en) * 1991-12-23 1994-07-19 Intel Corporation Method and apparatus for encoding a digital motion video signal using pyramid specific filtering
US5212741A (en) * 1992-01-21 1993-05-18 Eastman Kodak Company Preprocessing of dot-matrix/ink-jet printed text for Optical Character Recognition
US5649031A (en) * 1992-03-31 1997-07-15 Hitachi, Ltd. Image information processor for producing high-quality output image

Also Published As

Publication number Publication date
EP0649246B1 (de) 1999-01-07
EP0649246A1 (de) 1995-04-19
DE69415763D1 (de) 1999-02-18
US5828792A (en) 1998-10-27
JPH07177346A (ja) 1995-07-14
CA2128389C (en) 1999-05-11
JP2981133B2 (ja) 1999-11-22
CA2128389A1 (en) 1995-04-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition