JPS568960A - Artificial reproduction processing system for half tone - Google Patents

Artificial reproduction processing system for half tone

Info

Publication number
JPS568960A
JPS568960A JP8411379A JP8411379A JPS568960A JP S568960 A JPS568960 A JP S568960A JP 8411379 A JP8411379 A JP 8411379A JP 8411379 A JP8411379 A JP 8411379A JP S568960 A JPS568960 A JP S568960A
Authority
JP
Japan
Prior art keywords
dimensions
picture
halftone
processing system
reproduction processing
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
JP8411379A
Other languages
Japanese (ja)
Inventor
Takashi Saito
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8411379A priority Critical patent/JPS568960A/en
Publication of JPS568960A publication Critical patent/JPS568960A/en
Pending 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To make it possible to reproduce the artificial halftone by processing black-and-white binary signals of facsimile communication in two dimensions. CONSTITUTION:A picture signal consisting of a black-and-white binary signal is integrated in two dimensions to scatter recording dots evenly as much as possible. Namely, groups of picture elements distributed in two dimensions are formed while the total sum of picture-element levels approximates to constant value VT and for one group, one recording pulse in generated to distribute recording dots in two dimensions, thereby producing the halftone. Consequently, the generation of moire easy to appear in processing only in the scanning-line direction can be reduced.
JP8411379A 1979-07-03 1979-07-03 Artificial reproduction processing system for half tone Pending JPS568960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8411379A JPS568960A (en) 1979-07-03 1979-07-03 Artificial reproduction processing system for half tone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8411379A JPS568960A (en) 1979-07-03 1979-07-03 Artificial reproduction processing system for half tone

Publications (1)

Publication Number Publication Date
JPS568960A true JPS568960A (en) 1981-01-29

Family

ID=13821462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8411379A Pending JPS568960A (en) 1979-07-03 1979-07-03 Artificial reproduction processing system for half tone

Country Status (1)

Country Link
JP (1) JPS568960A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006046651A (en) * 2004-07-30 2006-02-16 Xerox Corp Gear enabling off-center direct engagement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006046651A (en) * 2004-07-30 2006-02-16 Xerox Corp Gear enabling off-center direct engagement

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