DE3853855D1 - Schnelle zwei-ton zu grauwert-bildskalierung. - Google Patents

Schnelle zwei-ton zu grauwert-bildskalierung.

Info

Publication number
DE3853855D1
DE3853855D1 DE3853855T DE3853855T DE3853855D1 DE 3853855 D1 DE3853855 D1 DE 3853855D1 DE 3853855 T DE3853855 T DE 3853855T DE 3853855 T DE3853855 T DE 3853855T DE 3853855 D1 DE3853855 D1 DE 3853855D1
Authority
DE
Germany
Prior art keywords
tone
fast
gray value
value scaling
scaling
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
DE3853855T
Other languages
English (en)
Other versions
DE3853855T2 (de
Inventor
Frank Glazer
John Trimper
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.)
Digital Equipment Corp
Original Assignee
Digital Equipment 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 Digital Equipment Corp filed Critical Digital Equipment Corp
Application granted granted Critical
Publication of DE3853855D1 publication Critical patent/DE3853855D1/de
Publication of DE3853855T2 publication Critical patent/DE3853855T2/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
    • G06T3/4023—Scaling of whole images or parts thereof, e.g. expanding or contracting based on decimating pixels or lines of pixels; based on inserting pixels or lines of pixels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Nuclear Medicine (AREA)
DE3853855T 1987-03-02 1988-03-02 Schnelle zwei-ton zu grauwert-bildskalierung. Expired - Lifetime DE3853855T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/020,267 US4829587A (en) 1987-03-02 1987-03-02 Fast bitonal to gray scale image scaling
PCT/US1988/000546 WO1988006769A1 (en) 1987-03-02 1988-03-02 Fast bitonal to gray scale image scaling

Publications (2)

Publication Number Publication Date
DE3853855D1 true DE3853855D1 (de) 1995-06-29
DE3853855T2 DE3853855T2 (de) 1996-02-29

Family

ID=21797659

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3853855T Expired - Lifetime DE3853855T2 (de) 1987-03-02 1988-03-02 Schnelle zwei-ton zu grauwert-bildskalierung.

Country Status (5)

Country Link
US (1) US4829587A (de)
EP (1) EP0302930B1 (de)
JP (1) JPH01502942A (de)
DE (1) DE3853855T2 (de)
WO (1) WO1988006769A1 (de)

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US5109481A (en) * 1987-07-24 1992-04-28 Hewlet-Packard Company Quadratic interpolation for shaded image generation
JPS6453274A (en) * 1987-08-25 1989-03-01 Hitachi Ltd Interpolation device having line segment processing part running parallel with coordinate axis
US5170442A (en) * 1987-09-08 1992-12-08 Seiko Epson Corporation Character pattern transforming system
US5125045A (en) * 1987-11-20 1992-06-23 Hitachi, Ltd. Image processing system
JPH0683356B2 (ja) * 1988-01-19 1994-10-19 株式会社日立製作所 画像情報記録装置
US4952921A (en) * 1988-06-09 1990-08-28 Rockwell International Corporation Graphic dot flare apparatus
US7382929B2 (en) 1989-05-22 2008-06-03 Pixel Instruments Corporation Spatial scan replication circuit
US5097518A (en) * 1990-02-27 1992-03-17 Eastman Kodak Company Technique for performing digital image scaling by logically combining or replicating pixels in blocks of differing groupsizes
US5113455A (en) * 1990-02-27 1992-05-12 Eastman Kodak Company Digital image scaling by stepwise pixel movement
US5282057A (en) * 1990-04-23 1994-01-25 Xerox Corporation Bit-map image resolution converter
US5410615A (en) * 1990-09-25 1995-04-25 Xerox Corporation Bitmap image resolution converter compensating for write-white xerographic laser printing
US5081690A (en) * 1990-05-08 1992-01-14 Eastman Kodak Company Row-by-row segmentation and thresholding for optical character recognition
US5309525A (en) * 1990-06-14 1994-05-03 Canon Kabushiki Kaisha Image processing apparatus using neural network
JPH077256B2 (ja) * 1990-07-25 1995-01-30 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン グレイ・スケール・パターンの発生方法
US5239597A (en) * 1991-02-25 1993-08-24 Samsung Electronics Co., Ltd. Nearest neighbor dither image processing circuit
US5283557A (en) * 1991-07-05 1994-02-01 Ncr Corporation Method for converting high resolution data into lower resolution data
US5572234A (en) * 1991-09-20 1996-11-05 Intel Corporation Display element density conversion
US5872636A (en) * 1991-11-01 1999-02-16 Canon Kabushiki Kaisha Flexible resolution control and matching in image processing
US5748195A (en) * 1992-10-29 1998-05-05 International Business Machines Corporation Method and means for evaluating a tetrahedral linear interpolation function
US5301037A (en) * 1992-11-25 1994-04-05 Xerox Corporation Resolution conversion with simulated multi-bit gray
US5432892A (en) * 1992-11-25 1995-07-11 International Business Machines Corporation Volummetric linear interpolation
US5751926A (en) * 1992-12-23 1998-05-12 International Business Machines Corporation Function approximation using a centered cubic packing with tetragonal disphenoid extraction
US5390035A (en) * 1992-12-23 1995-02-14 International Business Machines Corporation Method and means for tetrahedron/octahedron packing and tetrahedron extraction for function approximation
EP0644684B1 (de) * 1993-09-17 2000-02-02 Eastman Kodak Company Digitaler integrierter Abtastratenumwandlungsschaltkreis und Anwendung bei einer schnellen Grössenänderung eines Bildes
CA2132248C (en) * 1993-11-01 1999-09-21 Ying-Wei Lin Apparatus and method for arbitrary binary resolution conversion
US5528704A (en) * 1993-11-15 1996-06-18 Xerox Corporation Image resolution conversion using a plurality of image registrations
GB9323529D0 (en) * 1993-11-15 1994-01-05 Videologic Ltd Improvements in digital image signal processing
US6427030B1 (en) * 1994-08-03 2002-07-30 Xerox Corporation Method and system for image conversion utilizing dynamic error diffusion
US6347159B1 (en) * 1994-08-03 2002-02-12 Xerox Corporation Method and system for processing image information using screening and error diffusion
US5608821A (en) * 1994-08-03 1997-03-04 Xerox Corporation Method of high addressability error diffusion
US6137494A (en) * 1995-08-18 2000-10-24 International Business Machines Corporation Method and means for evaluating a tetrahedral linear interpolation function
US6249357B1 (en) 1996-05-30 2001-06-19 Xerox Corporation System and apparatus for tonal reproduction curve adjustment in a hybrid error diffusion process
US5933539A (en) * 1996-05-30 1999-08-03 Xerox Corporation Method and system for hybrid error diffusion processing of image information using programmable screen modulation
US5787206A (en) * 1996-05-30 1998-07-28 Xerox Corporation Method and system for processing image information using expanded dynamic screening and error diffusion
JPH1093820A (ja) * 1996-05-30 1998-04-10 Xerox Corp 誤差拡散方法及び誤差拡散システム
US5822464A (en) * 1996-05-30 1998-10-13 Xerox Corporation Method and system for processing image information using video dependent dampened screening and error diffusion
US5809177A (en) * 1996-06-06 1998-09-15 Xerox Corporation Hybrid error diffusion pattern shifting reduction using programmable threshold perturbation
US5903361A (en) * 1996-06-06 1999-05-11 Xerox Corporation Method and system for processing image information using background error diffusion
US5754706A (en) * 1996-06-19 1998-05-19 Xerox Corporation System and apparatus for single subpixel elimination in an high addressable error diffusion process
JP3013808B2 (ja) * 1997-05-19 2000-02-28 日本電気株式会社 解像度変換方法およびこれを用いた表示制御装置
US6091860A (en) * 1997-11-12 2000-07-18 Pagemasters, Inc. System and method for processing pixels for displaying and storing
AUPP779798A0 (en) * 1998-12-18 1999-01-21 Canon Kabushiki Kaisha A modified kernel for image interpolation
JP4546174B2 (ja) * 2004-07-15 2010-09-15 キヤノン株式会社 撮影装置及びその制御方法、プログラム
EP2120207A1 (de) * 2008-05-15 2009-11-18 Telefonaktiebolaget LM Ericsson (PUBL) Verfahren und Vorrichtung zur Skalierung digitaler Bilder
JP6316330B2 (ja) * 2015-04-03 2018-04-25 コグネックス・コーポレーション ホモグラフィの修正
US10275863B2 (en) * 2015-04-03 2019-04-30 Cognex Corporation Homography rectification
US9542732B2 (en) 2015-04-03 2017-01-10 Cognex Corporation Efficient image transformation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185078A (en) * 1981-05-09 1982-11-15 Tokyo Shibaura Electric Co Picture display unit
JPS58128078A (ja) * 1982-01-27 1983-07-30 Dainippon Screen Mfg Co Ltd メモリ装置の構成方法
US4532602A (en) * 1982-03-08 1985-07-30 The Mead Corporation Device for electrical variable magnification of document image
US4528693A (en) * 1982-09-30 1985-07-09 International Business Machines Corporation Apparatus and method for scaling facsimile image data
JPS59100972A (ja) * 1982-12-01 1984-06-11 Nec Corp カラ−画像処理装置
DE3418624A1 (de) * 1983-05-19 1984-11-22 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Verfahren und einrichtung zur bilddatenverarbeitung unter anwendung von additions- und subtraktionsvorgaengen
US4653013A (en) * 1984-11-19 1987-03-24 General Electric Company Altering spatial characteristics of a digital image
GB2174861A (en) * 1985-05-08 1986-11-12 Sony Corp Video signal special effects generator
JPS623372A (ja) * 1985-06-27 1987-01-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 画像変換装置

Also Published As

Publication number Publication date
US4829587A (en) 1989-05-09
EP0302930B1 (de) 1995-05-24
WO1988006769A1 (en) 1988-09-07
DE3853855T2 (de) 1996-02-29
EP0302930A1 (de) 1989-02-15
JPH01502942A (ja) 1989-10-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: GRUENECKER, KINKELDEY, STOCKMAIR & SCHWANHAEUSSER, 80538 MUENCHEN