JPS6482286A - Image inclination detector - Google Patents

Image inclination detector

Info

Publication number
JPS6482286A
JPS6482286A JP62241414A JP24141487A JPS6482286A JP S6482286 A JPS6482286 A JP S6482286A JP 62241414 A JP62241414 A JP 62241414A JP 24141487 A JP24141487 A JP 24141487A JP S6482286 A JPS6482286 A JP S6482286A
Authority
JP
Japan
Prior art keywords
inclination
detecting
run
representative value
white
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
JP62241414A
Other languages
English (en)
Inventor
Shuichi Tsujimoto
Haruo Asada
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
Original Assignee
Toshiba 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 filed Critical Toshiba Corp
Priority to JP62241414A priority Critical patent/JPS6482286A/ja
Priority to US07/227,119 priority patent/US4878124A/en
Priority to EP19880113785 priority patent/EP0308673A3/en
Publication of JPS6482286A publication Critical patent/JPS6482286A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/146—Aligning or centring of the image pick-up or image-field
    • G06V30/1475—Inclination or skew detection or correction of characters or of image to be recognised
    • G06V30/1478—Inclination or skew detection or correction of characters or of image to be recognised of characters or characters lines
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Length Measuring Devices By Optical Means (AREA)
JP62241414A 1987-09-25 1987-09-25 Image inclination detector Pending JPS6482286A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP62241414A JPS6482286A (en) 1987-09-25 1987-09-25 Image inclination detector
US07/227,119 US4878124A (en) 1987-09-25 1988-08-02 Image inclination detecting method and apparatus
EP19880113785 EP0308673A3 (en) 1987-09-25 1988-08-24 Image inclination detecting method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62241414A JPS6482286A (en) 1987-09-25 1987-09-25 Image inclination detector

Publications (1)

Publication Number Publication Date
JPS6482286A true JPS6482286A (en) 1989-03-28

Family

ID=17073937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62241414A Pending JPS6482286A (en) 1987-09-25 1987-09-25 Image inclination detector

Country Status (3)

Country Link
US (1) US4878124A (ja)
EP (1) EP0308673A3 (ja)
JP (1) JPS6482286A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111652230A (zh) * 2020-05-25 2020-09-11 浙江大华技术股份有限公司 车牌识别方法、电子设备及存储介质

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US5065437A (en) * 1989-12-08 1991-11-12 Xerox Corporation Identification and segmentation of finely textured and solid regions of binary images
US5131049A (en) * 1989-12-08 1992-07-14 Xerox Corporation Identification, characterization, and segmentation of halftone or stippled regions of binary images by growing a seed to a clipping mask
US5187753A (en) * 1989-12-08 1993-02-16 Xerox Corporation Method and apparatus for identification and correction of document skew
US5272764A (en) * 1989-12-08 1993-12-21 Xerox Corporation Detection of highlighted regions
US5129014A (en) * 1989-12-08 1992-07-07 Xerox Corporation Image registration
US5202933A (en) * 1989-12-08 1993-04-13 Xerox Corporation Segmentation of text and graphics
US5048109A (en) * 1989-12-08 1991-09-10 Xerox Corporation Detection of highlighted regions
JP2523222B2 (ja) * 1989-12-08 1996-08-07 ゼロックス コーポレーション 画像縮小／拡大方法及び装置
US5245676A (en) * 1989-12-21 1993-09-14 Xerox Corporation Determination of image skew angle from data including data in compressed form
US5193122A (en) * 1990-12-03 1993-03-09 Xerox Corporation High speed halftone detection technique
US6373997B1 (en) 1991-07-30 2002-04-16 Xerox Corporation Coarse and fine skew measurement
JP3375158B2 (ja) * 1991-11-28 2003-02-10 株式会社リコー 画像データ処理方法及びその装置
CA2116600C (en) * 1993-04-10 1996-11-05 David Jack Ittner Methods and apparatus for inferring orientation of lines of text
JP4114959B2 (ja) * 1995-06-20 2008-07-09 キヤノン株式会社 画像処理方法及び装置
US5581635A (en) * 1995-07-25 1996-12-03 United Parcel Service Of America, Inc. Method and system for fast rotation of run-length encoded images
JP3006466B2 (ja) * 1995-09-28 2000-02-07 日本電気株式会社 文字入力装置
JP3099771B2 (ja) * 1997-05-07 2000-10-16 日本電気株式会社 文字認識方法、装置及び文字認識プログラムを記録した記録媒体
JP3558493B2 (ja) * 1997-06-10 2004-08-25 富士通株式会社 用紙位置合わせ装置、用紙位置合わせ方法及び用紙位置合わせプログラムを記録したコンピュータ読み取り可能な記録媒体
JPH11252351A (ja) * 1998-03-02 1999-09-17 Konica Corp 画像読取装置
US6490376B1 (en) 1998-09-17 2002-12-03 Metrologic Instruments, Inc. Skew processing of raster scan images
JP3740910B2 (ja) * 1999-09-29 2006-02-01 コニカミノルタホールディングス株式会社 画像処理方法および画像処理装置
US7726765B2 (en) * 2005-04-28 2010-06-01 Seiko Epson Corporation Printing method, storage medium, medium, printing apparatus, method for detecting end of image, method for detecting carrying unevenness of medium, and device for detecting carrying unevenness of medium

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Publication number Priority date Publication date Assignee Title
US3553437A (en) * 1967-05-02 1971-01-05 Sylvania Electric Prod Optical label reading system and apparatus
FR2360133A1 (fr) * 1976-07-30 1978-02-24 Titn Procede et appareil de balayage d'un support avec compensation des defauts de positionnement et des variations de dimensions
US4513390A (en) * 1979-06-08 1985-04-23 Planning Research Corporation System for digital transmission and synthesis of integrated data
JPS5887652A (ja) * 1981-11-19 1983-05-25 Ricoh Co Ltd 画像処理装置
US4545070A (en) * 1982-04-30 1985-10-01 Fuji Electric Company, Ltd. Pattern discriminator
JPS5955574A (ja) * 1982-09-17 1984-03-30 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション マ−ク・シ−ト読取装置
JPS60124173A (ja) * 1983-12-09 1985-07-03 Canon Inc 画像処理装置
US4723297A (en) * 1984-09-27 1988-02-02 Siemens Aktiengesellschaft Method for automatic correction of character skew in the acquisition of a text original in the form of digital scan results
JPH0750483B2 (ja) * 1985-05-22 1995-05-31 株式会社日立製作所 文書画像追加情報の蓄積方法
WO1989005495A1 (en) * 1987-12-02 1989-06-15 Eastman Kodak Company Skew detector for digital image processing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111652230A (zh) * 2020-05-25 2020-09-11 浙江大华技术股份有限公司 车牌识别方法、电子设备及存储介质
CN111652230B (zh) * 2020-05-25 2023-05-12 浙江大华技术股份有限公司 车牌识别方法、电子设备及存储介质

Also Published As

Publication number Publication date
EP0308673A3 (en) 1991-05-29
US4878124A (en) 1989-10-31
EP0308673A2 (en) 1989-03-29

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OVERINGTON A potentially powerful method of simple automatic recognition exhibiting scale and orientation independance(image processing)