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JPS56152369A - Forming method for variable magnification picture - Google Patents

Forming method for variable magnification picture

Info

Publication number
JPS56152369A
JPS56152369A JP5437280A JP5437280A JPS56152369A JP S56152369 A JPS56152369 A JP S56152369A JP 5437280 A JP5437280 A JP 5437280A JP 5437280 A JP5437280 A JP 5437280A JP S56152369 A JPS56152369 A JP S56152369A
Authority
JP
Japan
Prior art keywords
picture
signal
respect
subscanning
contraction
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.)
Pending
Application number
JP5437280A
Other languages
Japanese (ja)
Inventor
Noriyoshi Tarumi
Masahiko Matsunawa
Hiroshi Tokunaga
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP5437280A priority Critical patent/JPS56152369A/en
Priority to DE19813116223 priority patent/DE3116223A1/en
Publication of JPS56152369A publication Critical patent/JPS56152369A/en
Pending 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
    • H04N1/23—Reproducing arrangements
    • H04N1/29—Reproducing arrangements involving production of an electrostatic intermediate picture
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Image Processing (AREA)

Abstract

PURPOSE: To make expansion or contraction of the picture possible in case that picture information is processed in the form of the electric signal, by sampling the picture signal by the clock signal or selecting plural image forming means in respect to the main scanning direction of the picture, and by sampling the picture signal by clocks or changing the interval of subscanning in respect to the subscanning direction.
CONSTITUTION: The picture of original M is transduced to an electric signal by CCD5 and is supplied to signal processing circuit 7. In signal processing circuit 7, sampling pulses of frequency (mf) are used to sample the picture signal of frequency (f), or plural ion modulation electrodes corresponding to expansion rates and contraction rates are prepared and the described ion modulation electrodes are selected in accordance with the magnification selecting signal in respect to the main scanning direction, and the interval of subscanning is changed in respect to the subscanning direction, and thus, the signal processing for expansion or contraction is performed. The processed electric signal is supplied to ion modulation electrode driving circuit 8, and an electrostatic latent image is formed on the dielectric of rotary drum 12 and is transferred to recording paper P.
COPYRIGHT: (C)1981,JPO&Japio
JP5437280A 1980-04-25 1980-04-25 Forming method for variable magnification picture Pending JPS56152369A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5437280A JPS56152369A (en) 1980-04-25 1980-04-25 Forming method for variable magnification picture
DE19813116223 DE3116223A1 (en) 1980-04-25 1981-04-23 Method for image reproduction with variable magnification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5437280A JPS56152369A (en) 1980-04-25 1980-04-25 Forming method for variable magnification picture

Publications (1)

Publication Number Publication Date
JPS56152369A true JPS56152369A (en) 1981-11-25

Family

ID=12968833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5437280A Pending JPS56152369A (en) 1980-04-25 1980-04-25 Forming method for variable magnification picture

Country Status (2)

Country Link
JP (1) JPS56152369A (en)
DE (1) DE3116223A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136859A (en) * 1981-02-18 1982-08-24 Nec Corp Picture expanding and contracting circuit
JPS62201299A (en) * 1986-12-05 1987-09-04 シルバー精工株式会社 Printer

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671306B2 (en) * 1983-03-30 1994-09-07 キヤノン株式会社 Image reader
JPS6022867A (en) * 1983-07-19 1985-02-05 Dainippon Screen Mfg Co Ltd Method and apparatus for scanning and copying image
US4701808A (en) * 1983-11-01 1987-10-20 Canon Kabushiki Kaisha Image processing apparatus with variable magnification and gray level processing
JPS60183883A (en) * 1984-03-02 1985-09-19 Canon Inc Picture processor
US5214519A (en) * 1991-04-29 1993-05-25 E. I. Du Pont De Nemours And Company Method and apparatus for producing a specified format output image from an arbitrary format source image

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS554015A (en) * 1978-06-24 1980-01-12 Osaka Yamatoya Shokai:Kk Image reproducing system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS554015A (en) * 1978-06-24 1980-01-12 Osaka Yamatoya Shokai:Kk Image reproducing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136859A (en) * 1981-02-18 1982-08-24 Nec Corp Picture expanding and contracting circuit
JPS62201299A (en) * 1986-12-05 1987-09-04 シルバー精工株式会社 Printer

Also Published As

Publication number Publication date
DE3116223A1 (en) 1982-02-25

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