DE69215400T2 - Verfahren und Apparat um ein binäres Bild zu erhalten - Google Patents

Verfahren und Apparat um ein binäres Bild zu erhalten

Info

Publication number
DE69215400T2
DE69215400T2 DE69215400T DE69215400T DE69215400T2 DE 69215400 T2 DE69215400 T2 DE 69215400T2 DE 69215400 T DE69215400 T DE 69215400T DE 69215400 T DE69215400 T DE 69215400T DE 69215400 T2 DE69215400 T2 DE 69215400T2
Authority
DE
Germany
Prior art keywords
obtaining
binary picture
binary
picture
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
DE69215400T
Other languages
English (en)
Other versions
DE69215400D1 (de
Inventor
Akira Matsumura
Ryuji Kitakado
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.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing Co Ltd
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 Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Application granted granted Critical
Publication of DE69215400D1 publication Critical patent/DE69215400D1/de
Publication of DE69215400T2 publication Critical patent/DE69215400T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G06T5/92—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/136—Segmentation; Edge detection involving thresholding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30108—Industrial image inspection
    • G06T2207/30141—Printed circuit board [PCB]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Input (AREA)
DE69215400T 1991-02-19 1992-02-04 Verfahren und Apparat um ein binäres Bild zu erhalten Expired - Fee Related DE69215400T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3047522A JP2750226B2 (ja) 1991-02-19 1991-02-19 二値化閾値の設定方法

Publications (2)

Publication Number Publication Date
DE69215400D1 DE69215400D1 (de) 1997-01-09
DE69215400T2 true DE69215400T2 (de) 1997-03-27

Family

ID=12777452

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69215400T Expired - Fee Related DE69215400T2 (de) 1991-02-19 1992-02-04 Verfahren und Apparat um ein binäres Bild zu erhalten

Country Status (5)

Country Link
US (1) US5315409A (de)
EP (1) EP0499875B1 (de)
JP (1) JP2750226B2 (de)
KR (1) KR960010425B1 (de)
DE (1) DE69215400T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5689623A (en) * 1995-03-27 1997-11-18 Optronics International Corporation Spread spectrum digital screening
US6707503B1 (en) * 1995-07-27 2004-03-16 Hitachi, Ltd. Video signal processing device for automatically adjusting phase of sampling clocks
US5887079A (en) * 1996-01-31 1999-03-23 Sumitomo Metal Industries Limited Image processing apparatus
US6587585B1 (en) * 2000-05-23 2003-07-01 Ncr Corporation Method of parameterizing a threshold curve for a binarization program and an apparatus therefor
US7088857B2 (en) 2002-01-31 2006-08-08 Hewlett-Packard Development Company, L.P. Dynamic bilevel thresholding of digital images
JP2004240583A (ja) * 2003-02-04 2004-08-26 Brother Ind Ltd 画像処理装置およびそれを備えた画像読み取り装置
US7349575B2 (en) * 2003-06-27 2008-03-25 Nippon Avionics Co., Ltd. Pattern inspection method and apparatus, and pattern alignment method
US8571798B2 (en) * 2009-03-03 2013-10-29 Baker Hughes Incorporated System and method for monitoring fluid flow through an electrical submersible pump
JP2016178037A (ja) * 2015-03-20 2016-10-06 株式会社日立ハイテクノロジーズ 荷電粒子ビーム装置及び荷電粒子ビーム装置を用いた画像の生成方法並びに画像処理装置
US10551181B2 (en) * 2015-06-24 2020-02-04 Fuji Corporation Board inspection machine
JP6631360B2 (ja) * 2016-03-29 2020-01-15 ブラザー工業株式会社 画像処理装置および画像処理方法
US10033918B2 (en) 2016-03-29 2018-07-24 Sony Corporation Method and system for image processing to detect salient objects in image
CN106529543B (zh) * 2016-11-02 2018-09-11 徐庆 一种动态计算多色级二值化自适应阈值的方法及其系统
JP6783739B2 (ja) 2017-10-31 2020-11-11 株式会社東芝 検査システムおよび検査方法
WO2021014590A1 (ja) * 2019-07-23 2021-01-28 株式会社Ｆｕｊｉ データ管理装置
US11545100B2 (en) * 2021-03-09 2023-01-03 Sharp Kabushiki Kaisha Liquid crystal display apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157378A (en) * 1981-03-25 1982-09-28 Hitachi Ltd Setting method of binary-coded threshold level
JPS57188177A (en) * 1981-05-15 1982-11-19 Fuji Xerox Co Ltd Picture signal processing device
FR2604582B1 (fr) * 1986-09-30 1989-01-06 Bertin & Cie Procede pour transformer une image initiale de type video a multiples niveaux de gris en une image binaire
DE3838032A1 (de) * 1987-11-09 1989-05-24 Hitachi Ltd Verfahren und einrichtung zur strukturpruefung
JP2520443B2 (ja) 1988-03-19 1996-07-31 富士通株式会社 ２値化のいき値決定方式
JPH0668763B2 (ja) * 1988-04-11 1994-08-31 株式会社イーゼル 画像処理方法

Also Published As

Publication number Publication date
JP2750226B2 (ja) 1998-05-13
JPH04264681A (ja) 1992-09-21
US5315409A (en) 1994-05-24
EP0499875B1 (de) 1996-11-27
KR920017532A (ko) 1992-09-26
KR960010425B1 (ko) 1996-07-31
DE69215400D1 (de) 1997-01-09
EP0499875A1 (de) 1992-08-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee