JPH0527295B2 - - Google Patents

Info

Publication number
JPH0527295B2
JPH0527295B2 JP58097168A JP9716883A JPH0527295B2 JP H0527295 B2 JPH0527295 B2 JP H0527295B2 JP 58097168 A JP58097168 A JP 58097168A JP 9716883 A JP9716883 A JP 9716883A JP H0527295 B2 JPH0527295 B2 JP H0527295B2
Authority
JP
Japan
Prior art keywords
value
data
reading
light
signal
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
JP58097168A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59223062A (ja
Inventor
Sunao Nagashima
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
Original Assignee
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.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP58097168A priority Critical patent/JPS59223062A/ja
Priority to US06/614,239 priority patent/US4691365A/en
Priority to DE19843420359 priority patent/DE3420359A1/de
Publication of JPS59223062A publication Critical patent/JPS59223062A/ja
Publication of JPH0527295B2 publication Critical patent/JPH0527295B2/ja
Granted 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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • 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
    • H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means
    • 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
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Input (AREA)
JP58097168A 1983-06-01 1983-06-01 画像読取装置 Granted JPS59223062A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP58097168A JPS59223062A (ja) 1983-06-01 1983-06-01 画像読取装置
US06/614,239 US4691365A (en) 1983-06-01 1984-05-25 Image reading apparatus
DE19843420359 DE3420359A1 (de) 1983-06-01 1984-05-30 Bildlesegeraet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58097168A JPS59223062A (ja) 1983-06-01 1983-06-01 画像読取装置

Related Child Applications (3)

Application Number Title Priority Date Filing Date
JP2143707A Division JPH0321161A (ja) 1990-06-01 1990-06-01 画像読取装置
JP2143708A Division JPH0321160A (ja) 1990-06-01 1990-06-01 画像読取装置
JP2143706A Division JPH0316365A (ja) 1990-06-01 1990-06-01 画像読取装置

Publications (2)

Publication Number Publication Date
JPS59223062A JPS59223062A (ja) 1984-12-14
JPH0527295B2 true JPH0527295B2 (enExample) 1993-04-20

Family

ID=14185043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58097168A Granted JPS59223062A (ja) 1983-06-01 1983-06-01 画像読取装置

Country Status (3)

Country Link
US (1) US4691365A (enExample)
JP (1) JPS59223062A (enExample)
DE (1) DE3420359A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3032438U (ja) * 1996-06-14 1996-12-24 ミネベア株式会社 軸流送風機

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60162377A (ja) * 1984-02-01 1985-08-24 Sharp Corp フアクシミリ，ｏｃｒ等における調光装置
JPS61187467A (ja) * 1985-02-14 1986-08-21 Matsushita Electric Ind Co Ltd イメ−ジセンサ
JPH0618414B2 (ja) * 1985-03-30 1994-03-09 株式会社東芝 カラ−画像読み取り装置
US4821099A (en) * 1985-08-14 1989-04-11 Canon Kabushiki Kaisha Image reading means with controllable shading correction
US4827351A (en) * 1985-08-14 1989-05-02 Canon Kabushiki Kaisha Image reading apparatus with controlled correction for unevenness in illumination
JP2632307B2 (ja) * 1986-02-07 1997-07-23 富士通株式会社 画像信号の量子化装置
US4933983A (en) * 1986-02-14 1990-06-12 Canon Kabushiki Kaisha Image data reading apparatus
JPH0828793B2 (ja) * 1986-02-28 1996-03-21 キヤノン株式会社 画像入力装置
JPS62230263A (ja) * 1986-03-31 1987-10-08 Toshiba Corp 画像信号処理回路
US5038225A (en) * 1986-04-04 1991-08-06 Canon Kabushiki Kaisha Image reading apparatus with black-level and/or white level correction
US5073959A (en) * 1986-10-24 1991-12-17 Canon Kabushiki Kaisha Image processing apparatus with contour extraction
US5036405A (en) * 1986-11-19 1991-07-30 Canon Kabushiki Kaisha Image amending method
US5121230A (en) * 1987-01-19 1992-06-09 Canon Kabushiki Kaisha Image reading apparatus having adjusting circuits for matching the level of and compensating for fluctuation among a plurality of sensing elements
JPS63193665A (ja) * 1987-02-04 1988-08-10 Fuji Xerox Co Ltd 画像読取装置
US4888492A (en) * 1987-03-03 1989-12-19 Canon Kabushiki Kaisha Image reading apparatus
US5042078A (en) * 1987-06-19 1991-08-20 Fuji Photo Film Co., Ltd. Method of effecting gradation and color correction of a composite image
JPS6442243A (en) * 1987-08-07 1989-02-14 Fuji Photo Film Co Ltd Density correction in optical scan recording
DE3931373A1 (de) * 1989-09-20 1991-03-28 Licentia Gmbh Auto-faksimilegeraet mit temperaturschutz
JP2945423B2 (ja) * 1989-12-01 1999-09-06 株式会社アドバンテスト カラー画像信号評価方法
JPH04138770A (ja) * 1990-09-28 1992-05-13 Minolta Camera Co Ltd シェーディング補正方法
US5347370A (en) * 1992-12-28 1994-09-13 Nisca Corporation Shading correction method and apparatus
JPH07336501A (ja) * 1994-06-08 1995-12-22 Minolta Co Ltd 光源を含んだ撮像システム
US6100919A (en) * 1994-09-07 2000-08-08 Minolta Co., Ltd. Film image reproduction apparatus utilizing apparatus illumination characteristics for film image reproduction
DE69834324T2 (de) 1998-09-22 2007-05-03 Fujifilm Electronic Imaging Ltd. Verbesserungen an Bildprojektionssystemen
JP4001711B2 (ja) * 2000-11-15 2007-10-31 株式会社リコー 画像読取装置
DE10215135A1 (de) * 2001-04-18 2002-10-24 Zeiss Carl Verfahren zur automatischen Regelung von Fokus und Beleuchtung, sowie zur objektivierten Antastung des Kantenortes in der optischen Präzisionsmesstechnik
JP3824927B2 (ja) * 2001-06-22 2006-09-20 株式会社リコー 読取装置、画像形成装置、通信装置および異常画素データ取得方法
JP2003348336A (ja) 2002-05-24 2003-12-05 Canon Inc 画像処理方法及び装置
EP1430938B1 (en) * 2002-11-20 2013-01-23 Universal Entertainment Corporation Gaming machine and display device therefor
US7359093B2 (en) * 2004-05-14 2008-04-15 Xerox Corporation Systems and methods for streak detection in image array scanning using overdetermined scanners and column filtering
EP2158356A4 (en) * 2007-05-04 2013-07-31 Quebec Centre Rech Ind SYSTEM AND METHOD FOR OPTIMIZING THE REFINING OF A GRANULAR LIGNOCELLULOSIC MATERIAL
US8502180B2 (en) 2009-01-26 2013-08-06 Centre De Recherche Industrielle Du Quebec Apparatus and method having dual sensor unit with first and second sensing fields crossed one another for scanning the surface of a moving article
CA2714235C (en) 2010-04-27 2014-01-07 Centre De Recherche Industrielle Du Quebec Method and system for stabilizing dry-based density of wood chips to be fed to a chip refining process
JP6809501B2 (ja) * 2018-04-09 2021-01-06 京セラドキュメントソリューションズ株式会社 画像読取装置、画像形成装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800078A (en) * 1972-12-18 1974-03-26 Ibm Digitally compensated scanning system
US4314281A (en) * 1979-10-12 1982-02-02 Xerox Corporation Shading compensation for scanning apparatus
JPS56161763A (en) * 1980-05-15 1981-12-12 Fuji Xerox Co Ltd Open lamp detecting method for facsimile
US4464789A (en) * 1980-05-19 1984-08-07 Environmental Research Institute Of Michigan Image analyzer for processing multiple frames of image data
JPS5778191A (en) * 1980-11-04 1982-05-15 Canon Inc Adjusting method and device for quantity of light in array type light source
JPS5781775A (en) * 1980-11-11 1982-05-21 Iwatsu Electric Co Ltd Image pickup equipment
US4408231A (en) * 1981-07-31 1983-10-04 International Business Machines Corporation Method and apparatus for calibrating a linear array scanning system
US4430748A (en) * 1981-09-21 1984-02-07 Xerox Corporation Image thresholding system
US4541116A (en) * 1984-02-27 1985-09-10 Environmental Research Institute Of Mi Neighborhood image processing stage for implementing filtering operations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3032438U (ja) * 1996-06-14 1996-12-24 ミネベア株式会社 軸流送風機

Also Published As

Publication number Publication date
DE3420359A1 (de) 1984-12-06
US4691365A (en) 1987-09-01
DE3420359C2 (enExample) 1991-08-29
JPS59223062A (ja) 1984-12-14

Similar Documents

Publication Publication Date Title
JPH0527295B2 (enExample)
US5181118A (en) Method of correcting image signal
JPH0530103B2 (enExample)
JPH0530104B2 (enExample)
JPH0530102B2 (enExample)
JPS60124176A (ja) シエ−デイング補正方式
JPS62172861A (ja) 原稿読取装置
JP4194210B2 (ja) 画像読取装置、及び画像読取装置の制御方法
JP3168020B2 (ja) 画像読取装置および方法
JP2000228726A (ja) 選択的に決定されるシステム応答ゲイン較正を用いた写真フィルム画像の走査方法
JP3788744B2 (ja) 画像読取装置
JP4895391B2 (ja) 画像読み取り装置
JP2644487B2 (ja) 画像読取装置
JPH02183667A (ja) シェーデイング補正方法
JPS6085673A (ja) 画像読取装置
JPH0481171A (ja) 原稿続取装置
JPH0324827B2 (enExample)
JP2627220B2 (ja) 画像読取装置
JPS63245176A (ja) 画像読み取り装置
JPS60156176A (ja) デ−タ処理における補正方式
JPS63245175A (ja) 画像読み取り装置
JPS62235874A (ja) 画像読取装置
JPH02265378A (ja) 画像読取装置
JPH03126373A (ja) 黒レベル補正手段
JPH01204568A (ja) スライスレベル自動調整読取信号処理装置