DE3241365C2 - - Google Patents

Info

Publication number
DE3241365C2
DE3241365C2 DE3241365A DE3241365A DE3241365C2 DE 3241365 C2 DE3241365 C2 DE 3241365C2 DE 3241365 A DE3241365 A DE 3241365A DE 3241365 A DE3241365 A DE 3241365A DE 3241365 C2 DE3241365 C2 DE 3241365C2
Authority
DE
Germany
Prior art keywords
pixel
binary
circuit
image
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
Application number
DE3241365A
Other languages
German (de)
English (en)
Other versions
DE3241365A1 (de
Inventor
Fusakichi Atsugi Kanagawa Jp Ohkouchi
Kazuhiro Shizuoka Jp Suzuki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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
Priority claimed from JP56179272A external-priority patent/JPS5880968A/ja
Priority claimed from JP56179273A external-priority patent/JPS5880969A/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of DE3241365A1 publication Critical patent/DE3241365A1/de
Application granted granted Critical
Publication of DE3241365C2 publication Critical patent/DE3241365C2/de
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
    • H04N1/4092—Edge or detail enhancement

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
DE19823241365 1981-11-09 1982-11-09 Verfahren und einrichtung zum ausgleichen eines bildes in einem bildwiedergabesystem Granted DE3241365A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56179272A JPS5880968A (ja) 1981-11-09 1981-11-09 アナログフアクシミリ
JP56179273A JPS5880969A (ja) 1981-11-09 1981-11-09 画像処理装置

Publications (2)

Publication Number Publication Date
DE3241365A1 DE3241365A1 (de) 1983-05-26
DE3241365C2 true DE3241365C2 (OSRAM) 1988-12-01

Family

ID=26499185

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823241365 Granted DE3241365A1 (de) 1981-11-09 1982-11-09 Verfahren und einrichtung zum ausgleichen eines bildes in einem bildwiedergabesystem

Country Status (2)

Country Link
US (1) US4517607A (OSRAM)
DE (1) DE3241365A1 (OSRAM)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL70214A (en) * 1983-11-13 1987-10-20 Elscint Ltd Image contrast enhancement arrangement
GB8410860D0 (en) * 1984-04-27 1984-06-06 Crosfield Electronics Ltd Image modification
JPS61230571A (ja) * 1985-04-05 1986-10-14 Dainippon Screen Mfg Co Ltd 画像走査装置
JPS61236274A (ja) * 1985-04-12 1986-10-21 Ricoh Co Ltd 画デ−タ処理方式
US4947323A (en) * 1986-05-22 1990-08-07 University Of Tennessee Research Corporation Method and apparatus for measuring small spatial dimensions of an object
JPH01154669A (ja) * 1987-12-10 1989-06-16 Dainippon Screen Mfg Co Ltd 画像合成装置
US4975786A (en) * 1987-12-28 1990-12-04 Canon Kabushiki Kaisha Image processing method and apparatus with error diffusion capability
DE3844041C2 (de) * 1987-12-28 1994-05-11 Canon Kk Bildverarbeitungsvorrichtung
US4849679A (en) * 1987-12-31 1989-07-18 Westinghouse Electric Corp. Image processing system for an optical seam tracker
US4910608A (en) * 1988-12-09 1990-03-20 Harris Corporation Imagery data compression mechanism employing adaptive vector quantizer
US5038388A (en) * 1989-05-15 1991-08-06 Polaroid Corporation Method for adaptively sharpening electronic images
US7382929B2 (en) * 1989-05-22 2008-06-03 Pixel Instruments Corporation Spatial scan replication circuit
JP2650759B2 (ja) * 1989-07-21 1997-09-03 富士写真フイルム株式会社 画像処理装置
JPH03245675A (ja) * 1990-02-23 1991-11-01 Matsushita Electric Ind Co Ltd 画像処理装置
US5060284A (en) * 1990-03-23 1991-10-22 Eastman Kodak Company Adaptive error diffusion thresholding for document images
US5267325A (en) * 1991-09-06 1993-11-30 Unisys Corporation Locating characters for character recognition
US6728003B1 (en) 2000-04-04 2004-04-27 Eastman Kodak Company Method of compensating for MTF in a digital image channel
EP2206334A2 (en) * 2007-09-28 2010-07-14 OCE-Technologies B.V. Method, apparatus and computer program for adaptive compensation of a mtf
RU2619820C1 (ru) * 2016-04-29 2017-05-18 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" (ФГБОУ ВО "РГРТУ", РГРТУ) Способ компенсации функций передачи модуляции пространственно и спектрально перекрывающихся изображений, одновременно формируемых системой дистанционного зондирования земли

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887762A (en) * 1972-07-28 1975-06-03 Hitachi Ltd Inspection equipment for detecting and extracting small portion included in pattern
DE2734696A1 (de) * 1976-08-10 1978-02-16 Philips Nv Verfahren und anordnung zur fehlerkorrektur bei faksimile-uebertragung
DE2719419A1 (de) * 1977-04-30 1978-11-09 Philips Patentverwaltung Verfahren und anordnung zur fehlerkorrektur bei faksimileuebertragung
JPS54152806A (en) * 1978-05-23 1979-12-01 Ricoh Co Ltd Noise eliminating circuit for picture process
JPS5527787A (en) * 1978-08-19 1980-02-28 Ricoh Co Ltd Picture noise processing method
DE3015637A1 (de) * 1979-04-23 1980-10-30 Recognition Equipment Inc Bildverarbeitungssystem
DE2927710A1 (de) * 1979-07-09 1981-01-29 Philips Nv Verfahren und anordnung zur fehlerkorrektur bei faksimileuebertragung
US4298895A (en) * 1978-08-31 1981-11-03 Fuji Xerox Co., Ltd. Visual image noise eliminating system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55602A (en) * 1978-03-22 1980-01-07 Ricoh Co Ltd Predictive restoration method for high-density picture element
JPS54126415A (en) * 1978-03-24 1979-10-01 Ricoh Co Ltd High-density picture element forecasting-restoring method
JPS55112076A (en) * 1979-02-22 1980-08-29 Ricoh Co Ltd Predictive restoration method for high-density picture element
US4389677A (en) * 1980-12-08 1983-06-21 Ncr Canada Ltd - Ncr Canada Ltee Method and apparatus for removing erroneous elements from digital images

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887762A (en) * 1972-07-28 1975-06-03 Hitachi Ltd Inspection equipment for detecting and extracting small portion included in pattern
DE2734696A1 (de) * 1976-08-10 1978-02-16 Philips Nv Verfahren und anordnung zur fehlerkorrektur bei faksimile-uebertragung
DE2719419A1 (de) * 1977-04-30 1978-11-09 Philips Patentverwaltung Verfahren und anordnung zur fehlerkorrektur bei faksimileuebertragung
JPS54152806A (en) * 1978-05-23 1979-12-01 Ricoh Co Ltd Noise eliminating circuit for picture process
JPS5527787A (en) * 1978-08-19 1980-02-28 Ricoh Co Ltd Picture noise processing method
US4298895A (en) * 1978-08-31 1981-11-03 Fuji Xerox Co., Ltd. Visual image noise eliminating system
DE3015637A1 (de) * 1979-04-23 1980-10-30 Recognition Equipment Inc Bildverarbeitungssystem
DE2927710A1 (de) * 1979-07-09 1981-01-29 Philips Nv Verfahren und anordnung zur fehlerkorrektur bei faksimileuebertragung

Also Published As

Publication number Publication date
DE3241365A1 (de) 1983-05-26
US4517607A (en) 1985-05-14

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8128 New person/name/address of the agent

Representative=s name: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM.

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee