DE69818593D1 - Bildbereichsbeurteilungsvorrichtung - Google Patents

Bildbereichsbeurteilungsvorrichtung

Info

Publication number
DE69818593D1
DE69818593D1 DE69818593T DE69818593T DE69818593D1 DE 69818593 D1 DE69818593 D1 DE 69818593D1 DE 69818593 T DE69818593 T DE 69818593T DE 69818593 T DE69818593 T DE 69818593T DE 69818593 D1 DE69818593 D1 DE 69818593D1
Authority
DE
Germany
Prior art keywords
image area
judging means
area judging
image
judging
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
DE69818593T
Other languages
English (en)
Other versions
DE69818593T2 (de
Inventor
Mihoko Tanimura
Mitsuru Tokuyama
Masatsugu Nakamura
Masaaki Ohtsuki
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE69818593D1 publication Critical patent/DE69818593D1/de
Publication of DE69818593T2 publication Critical patent/DE69818593T2/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
    • H04N1/40—Picture signal circuits
    • H04N1/40062—Discrimination between different image types, e.g. two-tone, continuous tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Analysis (AREA)
  • Facsimile Image Signal Circuits (AREA)
DE69818593T 1997-08-21 1998-07-20 Bildbereichsbeurteilungsvorrichtung Expired - Lifetime DE69818593T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22540597A JP3472094B2 (ja) 1997-08-21 1997-08-21 領域判定装置
JP22540597 1997-08-21

Publications (2)

Publication Number Publication Date
DE69818593D1 true DE69818593D1 (de) 2003-11-06
DE69818593T2 DE69818593T2 (de) 2004-08-05

Family

ID=16828857

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69818593T Expired - Lifetime DE69818593T2 (de) 1997-08-21 1998-07-20 Bildbereichsbeurteilungsvorrichtung

Country Status (4)

Country Link
US (1) US6266156B1 (de)
EP (1) EP0898414B1 (de)
JP (1) JP3472094B2 (de)
DE (1) DE69818593T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987221A (en) * 1997-01-24 1999-11-16 Hewlett-Packard Company Encoded orphan pixels for discriminating halftone data from text and line art data
JP3558893B2 (ja) * 1998-10-08 2004-08-25 シャープ株式会社 画像処理装置および画像処理方法
JP2000353247A (ja) * 1999-06-14 2000-12-19 Riso Kagaku Corp 白黒画像情報の領域判別方法および装置
JP3807891B2 (ja) * 2000-02-23 2006-08-09 理想科学工業株式会社 画像情報の領域判別方法および装置
TWI284288B (en) * 2004-06-04 2007-07-21 Benq Corp Text region recognition method, storage medium and system
US20060165287A1 (en) * 2005-01-27 2006-07-27 Destiny Technology Corporation Photo and text discriminating method
CN100476618C (zh) * 2005-03-11 2009-04-08 佳能株式会社 成像装置及其控制方法
JP4498291B2 (ja) * 2005-03-11 2010-07-07 キヤノン株式会社 画像形成装置
JP4768451B2 (ja) * 2006-01-18 2011-09-07 株式会社リコー 画像処理装置、画像形成装置、プログラムおよび画像処理方法
JP4196996B2 (ja) * 2006-02-15 2008-12-17 村田機械株式会社 画像形成装置及び画像形成装置の濃度制御方法
JP4890974B2 (ja) 2006-06-29 2012-03-07 キヤノン株式会社 画像処理装置、及び画像処理方法
JP4890973B2 (ja) * 2006-06-29 2012-03-07 キヤノン株式会社 画像処理装置、画像処理方法、画像処理プログラム及び記憶媒体
JP4926568B2 (ja) 2006-06-29 2012-05-09 キヤノン株式会社 画像処理装置、画像処理方法、及び画像処理プログラム
JP4684959B2 (ja) 2006-07-04 2011-05-18 キヤノン株式会社 画像処理装置、画像処理方法およびプログラム
JP4632452B2 (ja) 2006-07-07 2011-02-16 キヤノン株式会社 画像補正処理装置、画像補正処理方法、プログラム及び記憶媒体
JP4662066B2 (ja) * 2006-07-12 2011-03-30 株式会社リコー 画像処理装置、画像形成装置、画像配信装置、画像処理方法、プログラム及び記録媒体
US8121414B2 (en) * 2007-06-13 2012-02-21 Sharp Kabushiki Kaisha Image processing method, image processing apparatus, and image forming apparatus
AU2009201252B2 (en) * 2009-03-31 2011-06-02 Canon Kabushiki Kaisha Colour correcting foreground colours for visual quality improvement
US20110081051A1 (en) * 2009-10-06 2011-04-07 Newgen Software Technologies Ltd. Automated quality and usability assessment of scanned documents
US8731296B2 (en) * 2011-04-21 2014-05-20 Seiko Epson Corporation Contact text detection in scanned images
JP6599672B2 (ja) * 2015-07-17 2019-10-30 日本電産サンキョー株式会社 文字切り出し装置、文字認識装置、および文字切り出し方法
JP6681033B2 (ja) * 2017-06-07 2020-04-15 京セラドキュメントソリューションズ株式会社 画像処理装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8105256A (nl) * 1981-11-20 1983-06-16 Philips Nv Inrichting voor het dynamisch instellen van een discriminatiedrempel zwart/wit bij het bewerken van beelden met grijsheidswaarden.
US5014124A (en) * 1988-02-25 1991-05-07 Ricoh Company, Ltd. Digital image processing apparatus
JP2744619B2 (ja) * 1988-06-28 1998-04-28 富士通株式会社 画像処理装置
JPH0286369A (ja) * 1988-09-22 1990-03-27 Toshiba Corp 画像処理装置
JP2824991B2 (ja) 1988-12-16 1998-11-18 キヤノン株式会社 画像識別方法
EP0415648B1 (de) * 1989-08-31 1998-05-20 Canon Kabushiki Kaisha Vorrichtung zur Bildverarbeitung
EP0472313B1 (de) * 1990-08-03 1998-11-11 Canon Kabushiki Kaisha Gerät und Verfahren zur Bildverarbeitung
US5459587A (en) * 1991-05-02 1995-10-17 Minolta Camera Kabushiki Kaisha Processing apparatus capable of discriminating between pseudo half-tone/non-half-tone image data based upon the number of adjacencies of similar type of pixels within a block
US5317419A (en) * 1991-08-07 1994-05-31 Konica Corporation Image recognition apparatus
JP3215768B2 (ja) * 1994-03-24 2001-10-09 株式会社東芝 画像処理装置
US5920655A (en) * 1995-02-10 1999-07-06 Canon Kabushiki Kaisha Binarization image processing for multi-level image data

Also Published As

Publication number Publication date
EP0898414B1 (de) 2003-10-01
DE69818593T2 (de) 2004-08-05
JP3472094B2 (ja) 2003-12-02
EP0898414A2 (de) 1999-02-24
EP0898414A3 (de) 2000-07-05
JPH1169151A (ja) 1999-03-09
US6266156B1 (en) 2001-07-24

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Legal Events

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