JPH0420224B2 - - Google Patents

Info

Publication number
JPH0420224B2
JPH0420224B2 JP57071237A JP7123782A JPH0420224B2 JP H0420224 B2 JPH0420224 B2 JP H0420224B2 JP 57071237 A JP57071237 A JP 57071237A JP 7123782 A JP7123782 A JP 7123782A JP H0420224 B2 JPH0420224 B2 JP H0420224B2
Authority
JP
Japan
Prior art keywords
image
original image
interpolation
pixels
grid point
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
JP57071237A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58189762A (ja
Inventor
Haruo Takeda
Tetsuo Machida
Naoki Takada
Kuniaki Tabata
Yasuyuki Okada
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57071237A priority Critical patent/JPS58189762A/ja
Priority to US06/489,350 priority patent/US4610026A/en
Priority to DE8383104227T priority patent/DE3382016D1/de
Priority to EP83104227A priority patent/EP0093429B1/en
Publication of JPS58189762A publication Critical patent/JPS58189762A/ja
Priority to US06/901,574 priority patent/US4809345A/en
Publication of JPH0420224B2 publication Critical patent/JPH0420224B2/ja
Granted legal-status Critical Current

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
    • G06T3/4007—Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
JP57071237A 1982-04-30 1982-04-30 画像拡大縮小方式 Granted JPS58189762A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP57071237A JPS58189762A (ja) 1982-04-30 1982-04-30 画像拡大縮小方式
US06/489,350 US4610026A (en) 1982-04-30 1983-04-28 Method of and apparatus for enlarging/reducing two-dimensional images
DE8383104227T DE3382016D1 (de) 1982-04-30 1983-04-29 Verfahren und vorrichtung zur vergroesserung/verkleinerung von zweidimensionalen bildern.
EP83104227A EP0093429B1 (en) 1982-04-30 1983-04-29 Method of and apparatus for enlarging/reducing two-dimensional images
US06/901,574 US4809345A (en) 1982-04-30 1986-08-29 Method of and apparatus for enlarging/reducing two-dimensional images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57071237A JPS58189762A (ja) 1982-04-30 1982-04-30 画像拡大縮小方式

Publications (2)

Publication Number Publication Date
JPS58189762A JPS58189762A (ja) 1983-11-05
JPH0420224B2 true JPH0420224B2 (enrdf_load_stackoverflow) 1992-04-02

Family

ID=13454883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57071237A Granted JPS58189762A (ja) 1982-04-30 1982-04-30 画像拡大縮小方式

Country Status (1)

Country Link
JP (1) JPS58189762A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS6231482A (ja) * 1985-08-02 1987-02-10 Canon Inc 画像処理装置
US4988984A (en) * 1988-10-31 1991-01-29 International Business Machines Corporation Image interpolator for an image display system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5672576A (en) * 1979-11-19 1981-06-16 Ricoh Co Ltd Picture contracting method
JPS5676683A (en) * 1979-11-28 1981-06-24 Ricoh Co Ltd Processing method for picture deformation
JPS5679570A (en) * 1979-12-03 1981-06-30 Ricoh Co Ltd Picture size reducing and magnifying method and its device
JPS579166A (en) * 1980-06-19 1982-01-18 Ricoh Co Ltd Picture shrinking device
JPS5748153A (en) * 1980-09-04 1982-03-19 Ricoh Co Ltd Picture element density converting system
JPS5785161A (en) * 1980-11-14 1982-05-27 Fujitsu Ltd Image magnifying and reducing system
JPS57179890A (en) * 1981-04-28 1982-11-05 Ricoh Kk Picture variable power unit
JPS5884358A (ja) * 1981-11-13 1983-05-20 Toshiba Corp 画像拡大処理装置
JPS58184871A (ja) * 1982-04-15 1983-10-28 Konishiroku Photo Ind Co Ltd 画素密度変換方法及びその装置

Also Published As

Publication number Publication date
JPS58189762A (ja) 1983-11-05

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