JPS56144666A - Processing method of color picture information - Google Patents

Processing method of color picture information

Info

Publication number
JPS56144666A
JPS56144666A JP4888380A JP4888380A JPS56144666A JP S56144666 A JPS56144666 A JP S56144666A JP 4888380 A JP4888380 A JP 4888380A JP 4888380 A JP4888380 A JP 4888380A JP S56144666 A JPS56144666 A JP S56144666A
Authority
JP
Japan
Prior art keywords
color
signals
shift
picture
binary
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.)
Granted
Application number
JP4888380A
Other languages
Japanese (ja)
Other versions
JPS6226635B2 (en
Inventor
Toshitaka Hirata
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 JP4888380A priority Critical patent/JPS56144666A/en
Publication of JPS56144666A publication Critical patent/JPS56144666A/en
Publication of JPS6226635B2 publication Critical patent/JPS6226635B2/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
    • H04N1/46—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 Transmission Control (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Fax Reproducing Arrangements (AREA)

Abstract

PURPOSE:To eliminate a color shift and ghost by encoding pieces of color-separated picture information into binary signals and by determined color information via shift resistors, on the basis of the outputs, by using the relative information distribution of time domain of color signals. CONSTITUTION:For example, picture signals read via both filters 2R and 2C for red and cyan are compared with reference voltages VrR and VrC by using binary- coding circuits 8R and 8C and they are used as threshold levels to generate binary- coded signals Rin and Cin, then these are applied to discriminating circuit 9. The both are applied to shift registers SHR and SHC in series and, on the basis of their parallel outputs, the readout address of color data memory 9RB stored with data previously is determined to relative information distribution of time series of picture signals Rin and Cin, thereby determining two pieces of color picture information Rout and Bout. Thus, a color shift and ghost are reduced.
JP4888380A 1980-04-14 1980-04-14 Processing method of color picture information Granted JPS56144666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4888380A JPS56144666A (en) 1980-04-14 1980-04-14 Processing method of color picture information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4888380A JPS56144666A (en) 1980-04-14 1980-04-14 Processing method of color picture information

Publications (2)

Publication Number Publication Date
JPS56144666A true JPS56144666A (en) 1981-11-11
JPS6226635B2 JPS6226635B2 (en) 1987-06-10

Family

ID=12815675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4888380A Granted JPS56144666A (en) 1980-04-14 1980-04-14 Processing method of color picture information

Country Status (1)

Country Link
JP (1) JPS56144666A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142675A (en) * 1982-02-18 1983-08-24 Sanyo Electric Co Ltd Color picture processing system
JPS59128872A (en) * 1983-01-14 1984-07-25 Fuji Xerox Co Ltd Color picture information processor
JPS59147572A (en) * 1983-02-10 1984-08-23 Fuji Xerox Co Ltd Color picture information processing device
JPS6113261A (en) * 1984-06-29 1986-01-21 Canon Inc Color image processor
JPS6310884A (en) * 1986-06-30 1988-01-18 Konica Corp Picture processor
JPS63114373A (en) * 1986-06-30 1988-05-19 Konica Corp Picture processing device
JPH03126396A (en) * 1989-10-12 1991-05-29 Hitachi Ltd Method and apparatus for recording color picture

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142675A (en) * 1982-02-18 1983-08-24 Sanyo Electric Co Ltd Color picture processing system
JPS59128872A (en) * 1983-01-14 1984-07-25 Fuji Xerox Co Ltd Color picture information processor
JPH0422069B2 (en) * 1983-01-14 1992-04-15 Fuji Xerox Co Ltd
JPS59147572A (en) * 1983-02-10 1984-08-23 Fuji Xerox Co Ltd Color picture information processing device
JPH0422070B2 (en) * 1983-02-10 1992-04-15 Fuji Xerox Co Ltd
JPS6113261A (en) * 1984-06-29 1986-01-21 Canon Inc Color image processor
JPS6310884A (en) * 1986-06-30 1988-01-18 Konica Corp Picture processor
JPS63114373A (en) * 1986-06-30 1988-05-19 Konica Corp Picture processing device
JPH03126396A (en) * 1989-10-12 1991-05-29 Hitachi Ltd Method and apparatus for recording color picture

Also Published As

Publication number Publication date
JPS6226635B2 (en) 1987-06-10

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