JP4799482B2 - 画像形成装置とその制御方法 - Google Patents

画像形成装置とその制御方法 Download PDF

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Publication number
JP4799482B2
JP4799482B2 JP2007148617A JP2007148617A JP4799482B2 JP 4799482 B2 JP4799482 B2 JP 4799482B2 JP 2007148617 A JP2007148617 A JP 2007148617A JP 2007148617 A JP2007148617 A JP 2007148617A JP 4799482 B2 JP4799482 B2 JP 4799482B2
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JP
Japan
Prior art keywords
image
magnification
data
screen
image data
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Expired - Fee Related
Application number
JP2007148617A
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English (en)
Japanese (ja)
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JP2008301447A5 (enExample
JP2008301447A (ja
Inventor
肇 本山
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.)
Canon Inc
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Canon 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.)
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2007148617A priority Critical patent/JP4799482B2/ja
Priority to US12/131,337 priority patent/US8213045B2/en
Publication of JP2008301447A publication Critical patent/JP2008301447A/ja
Publication of JP2008301447A5 publication Critical patent/JP2008301447A5/ja
Application granted granted Critical
Publication of JP4799482B2 publication Critical patent/JP4799482B2/ja
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    • 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
    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Record Information Processing For Printing (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP2007148617A 2007-06-04 2007-06-04 画像形成装置とその制御方法 Expired - Fee Related JP4799482B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007148617A JP4799482B2 (ja) 2007-06-04 2007-06-04 画像形成装置とその制御方法
US12/131,337 US8213045B2 (en) 2007-06-04 2008-06-02 Correction of image data scaling in screen area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007148617A JP4799482B2 (ja) 2007-06-04 2007-06-04 画像形成装置とその制御方法

Publications (3)

Publication Number Publication Date
JP2008301447A JP2008301447A (ja) 2008-12-11
JP2008301447A5 JP2008301447A5 (enExample) 2010-07-15
JP4799482B2 true JP4799482B2 (ja) 2011-10-26

Family

ID=40087778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007148617A Expired - Fee Related JP4799482B2 (ja) 2007-06-04 2007-06-04 画像形成装置とその制御方法

Country Status (2)

Country Link
US (1) US8213045B2 (enExample)
JP (1) JP4799482B2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8749838B2 (en) 2012-03-23 2014-06-10 Ricoh Company, Limited Correcting magnification of a scanned original by adjusting a writing clock signal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010210652A (ja) * 2009-03-06 2010-09-24 Seiko Epson Corp 画像形成装置および画像形成方法
US10636120B2 (en) 2018-02-01 2020-04-28 Ricoh Company, Ltd. Image scaling with quality control

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771105A (en) * 1996-03-04 1998-06-23 Hewlett-Packard Company High speed system for grey level image scaling, threshold matrix alignment and tiling, and creation of a binary half-tone image
JP2003274143A (ja) * 2002-03-15 2003-09-26 Fuji Xerox Co Ltd 画像形成装置およびその方法
JP4045822B2 (ja) * 2002-03-19 2008-02-13 富士ゼロックス株式会社 画像形成装置
JP2004351908A (ja) 2002-07-31 2004-12-16 Canon Inc 画像形成装置およびその主走査倍率補正方法
JP2004133217A (ja) * 2002-10-10 2004-04-30 Kyocera Mita Corp 画像形成装置及びその色ずれ補正方法
JP2007076061A (ja) * 2005-09-12 2007-03-29 Ricoh Co Ltd 光書込装置、画像形成装置、光書込方法、および光書込プログラム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8749838B2 (en) 2012-03-23 2014-06-10 Ricoh Company, Limited Correcting magnification of a scanned original by adjusting a writing clock signal

Also Published As

Publication number Publication date
US20080297810A1 (en) 2008-12-04
US8213045B2 (en) 2012-07-03
JP2008301447A (ja) 2008-12-11

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