DE69905827D1 - Bildverarbeitungsverfahren und -gerät - Google Patents

Bildverarbeitungsverfahren und -gerät

Info

Publication number
DE69905827D1
DE69905827D1 DE69905827T DE69905827T DE69905827D1 DE 69905827 D1 DE69905827 D1 DE 69905827D1 DE 69905827 T DE69905827 T DE 69905827T DE 69905827 T DE69905827 T DE 69905827T DE 69905827 D1 DE69905827 D1 DE 69905827D1
Authority
DE
Germany
Prior art keywords
image processing
processing method
image
processing
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 - Fee Related
Application number
DE69905827T
Other languages
English (en)
Other versions
DE69905827T2 (de
Inventor
Keiko Kanamori
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.)
Toshiba Corp
Toshiba TEC Corp
Original Assignee
Toshiba Corp
Toshiba TEC 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 Toshiba Corp, Toshiba TEC Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE69905827D1 publication Critical patent/DE69905827D1/de
Publication of DE69905827T2 publication Critical patent/DE69905827T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
    • H04N1/4074—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Image Input (AREA)
  • Image Processing (AREA)
DE69905827T 1998-09-07 1999-09-07 Bildverarbeitungsverfahren und -gerät Expired - Fee Related DE69905827T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25267798A JP4097800B2 (ja) 1998-09-07 1998-09-07 画像処理方法および画像処理装置

Publications (2)

Publication Number Publication Date
DE69905827D1 true DE69905827D1 (de) 2003-04-17
DE69905827T2 DE69905827T2 (de) 2003-12-18

Family

ID=17240711

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69905827T Expired - Fee Related DE69905827T2 (de) 1998-09-07 1999-09-07 Bildverarbeitungsverfahren und -gerät

Country Status (4)

Country Link
US (1) US6631209B1 (de)
EP (1) EP0986246B1 (de)
JP (1) JP4097800B2 (de)
DE (1) DE69905827T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6920245B1 (en) 2000-11-22 2005-07-19 Kabushiki Kaisha Toshiba Image processing apparatus and image forming apparatus
US6806980B2 (en) * 2000-12-28 2004-10-19 Xerox Corporation Adaptive illumination correction of scanned images
US7057768B2 (en) * 2001-07-02 2006-06-06 Corel Corporation Automatic color balance
JP3918479B2 (ja) * 2001-09-11 2007-05-23 セイコーエプソン株式会社 シェーディング補正の基準データ設定方法及び画像読み取り装置
JP2003248008A (ja) * 2001-12-18 2003-09-05 Inst Of Physical & Chemical Res 反応液の攪拌方法
JP4254204B2 (ja) * 2001-12-19 2009-04-15 富士ゼロックス株式会社 画像照合装置、画像形成装置及び画像照合プログラム
US20030231194A1 (en) * 2002-06-13 2003-12-18 Texas Instruments Inc. Histogram method for image-adaptive bit-sequence selection for modulated displays
US7466445B2 (en) * 2003-07-14 2008-12-16 Toshiba Corporation Color and density calibration of color printers
KR100612494B1 (ko) * 2004-06-07 2006-08-14 삼성전자주식회사 칼러 영상의 채도 조절 장치 및 방법
JP4366318B2 (ja) * 2005-01-11 2009-11-18 キヤノン株式会社 画像処理装置及びその方法、プログラム
US20060203267A1 (en) * 2005-03-10 2006-09-14 Kabushiki Kaisha Toshiba Image forming apparatus and image forming method
US20060274376A1 (en) * 2005-06-06 2006-12-07 Lexmark International, Inc. Method for image background detection and removal
JP4282081B2 (ja) * 2005-10-31 2009-06-17 キヤノン株式会社 画像処理装置およびその方法
JP4232804B2 (ja) * 2006-08-25 2009-03-04 日本電気株式会社 画像濃度変換方法、画像強調処理装置、およびそのプログラム
KR101090059B1 (ko) * 2007-06-12 2011-12-07 삼성전자주식회사 화상처리장치 및 그 쉐이딩 방법
US8401290B2 (en) * 2008-07-24 2013-03-19 Libredigital, Inc. Method and system for processing to enhance digital images
JP5327469B2 (ja) * 2009-08-10 2013-10-30 富士ゼロックス株式会社 画像処理装置、画像処理プログラム
KR102615070B1 (ko) * 2016-10-12 2023-12-19 삼성전자주식회사 디스플레이 장치, 및 그 제어방법

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63184473A (ja) 1987-01-27 1988-07-29 Canon Inc 階調補正装置
US5267053A (en) 1988-10-27 1993-11-30 Eastman Kodak Company Automatic reference control for image scanners
US5055944A (en) * 1988-11-15 1991-10-08 Mita Industrial Co., Ltd. Image signal processing apparatus
US5657395A (en) 1989-03-02 1997-08-12 Minolta Camera Kabushiki Kaisha Image processing device providing improved image data processing by converting original image into a plurality of pixels and analyzing density data of each pixel
DE69325527T2 (de) 1992-02-21 1999-11-25 Canon K.K., Tokio/Tokyo Gerät und Verfahren zur Bildverarbeitung
EP0578875A1 (de) * 1992-07-17 1994-01-19 Recognition International Inc. Normalisierender Korrelator für Videoverarbeitung
JP3164744B2 (ja) 1994-12-21 2001-05-08 株式会社東芝 画像形成装置
JP3207067B2 (ja) 1995-01-31 2001-09-10 株式会社東芝 画像形成装置
JPH08214161A (ja) * 1995-02-03 1996-08-20 Toshiba Corp 画像処理装置
US5581370A (en) 1995-06-05 1996-12-03 Xerox Corporation Image-dependent automatic area of interest enhancement
US5883973A (en) * 1996-02-20 1999-03-16 Seiko Epson Corporation Method and apparatus for processing a document by segmentation into text and image areas
JP3779400B2 (ja) 1996-11-28 2006-05-24 株式会社東芝 画像処理方法

Also Published As

Publication number Publication date
DE69905827T2 (de) 2003-12-18
EP0986246A2 (de) 2000-03-15
JP4097800B2 (ja) 2008-06-11
EP0986246B1 (de) 2003-03-12
JP2000083166A (ja) 2000-03-21
US6631209B1 (en) 2003-10-07
EP0986246A3 (de) 2001-03-14

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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

Representative=s name: KRAMER - BARSKE - SCHMIDTCHEN, 81245 MUENCHEN

8339 Ceased/non-payment of the annual fee