JPS4957716A - - Google Patents

Info

Publication number
JPS4957716A
JPS4957716A JP6247873A JP6247873A JPS4957716A JP S4957716 A JPS4957716 A JP S4957716A JP 6247873 A JP6247873 A JP 6247873A JP 6247873 A JP6247873 A JP 6247873A JP S4957716 A JPS4957716 A JP S4957716A
Authority
JP
Japan
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.)
Granted
Application number
JP6247873A
Other languages
Japanese (ja)
Other versions
JPS5513025B2 (en
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 filed Critical
Publication of JPS4957716A publication Critical patent/JPS4957716A/ja
Publication of JPS5513025B2 publication Critical patent/JPS5513025B2/ja
Expired 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
    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/58—Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Color Image Communication Systems (AREA)
  • Image Processing (AREA)
JP6247873A 1972-06-02 1973-06-01 Expired JPS5513025B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722226990 DE2226990C3 (en) 1972-06-02 1972-06-02 Arrangement to improve the sharpness when recording halftone images

Publications (2)

Publication Number Publication Date
JPS4957716A true JPS4957716A (en) 1974-06-05
JPS5513025B2 JPS5513025B2 (en) 1980-04-05

Family

ID=5846691

Family Applications (3)

Application Number Title Priority Date Filing Date
JP6247873A Expired JPS5513025B2 (en) 1972-06-02 1973-06-01
JP10871279A Granted JPS5540492A (en) 1972-06-02 1979-08-28 Device for controlling resolution of copy from half tone original
JP10871379A Granted JPS5540493A (en) 1972-06-02 1979-08-28 Device for controlling resolution of copy from half tone original

Family Applications After (2)

Application Number Title Priority Date Filing Date
JP10871279A Granted JPS5540492A (en) 1972-06-02 1979-08-28 Device for controlling resolution of copy from half tone original
JP10871379A Granted JPS5540493A (en) 1972-06-02 1979-08-28 Device for controlling resolution of copy from half tone original

Country Status (7)

Country Link
JP (3) JPS5513025B2 (en)
CH (1) CH551645A (en)
DD (1) DD103978A5 (en)
DE (1) DE2226990C3 (en)
FR (1) FR2187139A5 (en)
GB (1) GB1424410A (en)
SU (1) SU503552A3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156815A (en) * 1974-06-07 1975-12-18
JPS5264001U (en) * 1975-11-06 1977-05-12
JPS6054570A (en) * 1983-09-05 1985-03-29 Fuji Photo Film Co Ltd System for emphasizing sharpness of picture
US6181819B1 (en) 1989-08-02 2001-01-30 Canon Kabushiki Kaisha Image processing apparatus including means for judging a chromatic portion of an image

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2708421C2 (en) * 1977-02-26 1982-01-14 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Method for mixing signals in the production of printing formes
JPS55146451A (en) * 1979-05-02 1980-11-14 Dainippon Screen Mfg Co Ltd Sharpness emphasis method in image scanning recorder
FR2467078A1 (en) * 1979-10-11 1981-04-17 Machulka Grigory Laser beam producing printing blocks - synchronously scans and modulates for line and half tone structures using sawtooth pulse generator and comparator
US4538182A (en) * 1981-05-11 1985-08-27 Canon Kabushiki Kaisha Image processing apparatus
JPS5814270A (en) * 1981-07-17 1983-01-27 Fuji Photo Film Co Ltd Picture scanning and recording method
DE3139483C2 (en) * 1981-10-03 1985-06-13 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Method and circuit arrangement for increasing contrast
EP0098319B1 (en) * 1982-07-03 1986-03-26 DR.-ING. RUDOLF HELL GmbH Method and arrangement for contrast enhancement
JP2515737B2 (en) * 1986-04-25 1996-07-10 株式会社日立製作所 Image enhancement method
GB8526817D0 (en) * 1985-10-31 1985-12-04 Crosfield Electronics Ltd Image enhancement
JPS62176370A (en) * 1986-01-30 1987-08-03 Usac Electronics Ind Co Ltd Image reader
JPS62272757A (en) * 1986-05-21 1987-11-26 Matsushita Graphic Commun Syst Inc Partial pseudo halftone picture reader
JPS62297991A (en) * 1986-06-18 1987-12-25 芝浦メカトロニクス株式会社 Empty can recovery machine
JPH0778625B2 (en) * 1988-11-30 1995-08-23 凸版印刷株式会社 Scanner device
JP3029116B2 (en) * 1989-08-02 2000-04-04 キヤノン株式会社 Image processing method
JPH05246009A (en) * 1992-03-06 1993-09-24 Kanazawa Seal:Kk Forming method of braille point
CN103477286A (en) * 2011-09-07 2013-12-25 株式会社尼康 Substrate processing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940088A (en) * 1972-08-16 1974-04-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940088A (en) * 1972-08-16 1974-04-15

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156815A (en) * 1974-06-07 1975-12-18
JPS5264001U (en) * 1975-11-06 1977-05-12
JPS6054570A (en) * 1983-09-05 1985-03-29 Fuji Photo Film Co Ltd System for emphasizing sharpness of picture
US6181819B1 (en) 1989-08-02 2001-01-30 Canon Kabushiki Kaisha Image processing apparatus including means for judging a chromatic portion of an image

Also Published As

Publication number Publication date
DE2226990A1 (en) 1973-12-13
JPS6124708B2 (en) 1986-06-12
JPS6122296B2 (en) 1986-05-31
JPS5540492A (en) 1980-03-21
DE2226990C3 (en) 1976-01-02
DE2226990B2 (en) 1975-04-30
SU503552A3 (en) 1976-02-15
JPS5540493A (en) 1980-03-21
DD103978A5 (en) 1974-02-12
CH551645A (en) 1974-07-15
GB1424410A (en) 1976-02-11
FR2187139A5 (en) 1974-01-11
JPS5513025B2 (en) 1980-04-05

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