JPS561655A - Monitor-use density level display method for picture input/output device - Google Patents

Monitor-use density level display method for picture input/output device

Info

Publication number
JPS561655A
JPS561655A JP7739879A JP7739879A JPS561655A JP S561655 A JPS561655 A JP S561655A JP 7739879 A JP7739879 A JP 7739879A JP 7739879 A JP7739879 A JP 7739879A JP S561655 A JPS561655 A JP S561655A
Authority
JP
Japan
Prior art keywords
output
density level
display
level
density
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
JP7739879A
Other languages
Japanese (ja)
Inventor
Morizumi Kurose
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
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP7739879A priority Critical patent/JPS561655A/en
Publication of JPS561655A publication Critical patent/JPS561655A/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
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4056—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)

Abstract

PURPOSE:To secure the display for the density level state of each picture element with the suited visibility and thus realize the quick and accurate monitoring, by displaying the binary coded input/output data after the decimal coding and in the length proportional to the density level information. CONSTITUTION:In decoder D which gives the decimal coding to the binary coded picture density information, the output of the 0-level line remains as it is, and each output of remaining 1-7 level lines is combined properly to be sent to inverter driver INV via OR circuits OR1-7 each. After this, the light emission is given to the LED of graph display unit DISPLY in accordance with each inverter output, and thus the density level of the input or output data is graphed. In this way, the quick and accurate monitoring is possible even for the data which is easily recognized mistakenly in the binary display and to the display suited for the human visibility.
JP7739879A 1979-06-19 1979-06-19 Monitor-use density level display method for picture input/output device Pending JPS561655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7739879A JPS561655A (en) 1979-06-19 1979-06-19 Monitor-use density level display method for picture input/output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7739879A JPS561655A (en) 1979-06-19 1979-06-19 Monitor-use density level display method for picture input/output device

Publications (1)

Publication Number Publication Date
JPS561655A true JPS561655A (en) 1981-01-09

Family

ID=13632784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7739879A Pending JPS561655A (en) 1979-06-19 1979-06-19 Monitor-use density level display method for picture input/output device

Country Status (1)

Country Link
JP (1) JPS561655A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041869A (en) * 1983-08-17 1985-03-05 Canon Inc Monitoring device
JPH0186363U (en) * 1987-11-28 1989-06-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041869A (en) * 1983-08-17 1985-03-05 Canon Inc Monitoring device
JPH0186363U (en) * 1987-11-28 1989-06-07

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