JPS56141670A - Color picture decoder - Google Patents

Color picture decoder

Info

Publication number
JPS56141670A
JPS56141670A JP4430680A JP4430680A JPS56141670A JP S56141670 A JPS56141670 A JP S56141670A JP 4430680 A JP4430680 A JP 4430680A JP 4430680 A JP4430680 A JP 4430680A JP S56141670 A JPS56141670 A JP S56141670A
Authority
JP
Japan
Prior art keywords
signal
forecasting
color picture
circuit
colors
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
JP4430680A
Other languages
Japanese (ja)
Other versions
JPS6326586B2 (en
Inventor
Shoji Mizuno
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4430680A priority Critical patent/JPS56141670A/en
Priority to US06/207,500 priority patent/US4344086A/en
Priority to CA000365014A priority patent/CA1165861A/en
Publication of JPS56141670A publication Critical patent/JPS56141670A/en
Publication of JPS6326586B2 publication Critical patent/JPS6326586B2/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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Color Image Communication Systems (AREA)
  • Fax Reproducing Arrangements (AREA)

Abstract

PURPOSE:To efficiently encode a color picture signal, by taking into consideration a correlation among different colors, too, in the run-length encoding method. CONSTITUTION:In accordance with a color picture having N colors, which has been already input, the encoding circuit arranges signal values of N pieces for forecasting as to a picture signal to be input next, in order of the forecasting hit rate, detects how the actual signal value stands and conforms with in the signal values which have been arranged, and it is made a forecasting error signal. This signal is compressed, it is input to the expanding and decoding circuit 18 of the decoder as a forecasting error encoding signal 45, and it is expanded and decoded. The forecasting decoding circuit 19 generates a mode signal based on a color picture signal having N colors, decodes the forecasting error signal corresponding to this signal, and outputs it as a decoding picture signal 48. The control circuit 20 sends out a clock signal, a control signal and a synchronizing signal, and controls such circuit.
JP4430680A 1979-11-20 1980-04-04 Color picture decoder Granted JPS56141670A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4430680A JPS56141670A (en) 1980-04-04 1980-04-04 Color picture decoder
US06/207,500 US4344086A (en) 1979-11-20 1980-11-17 Encoder for encoding a multilevel pel signal sequence with probability representative mode codes allotted to prediction error codes for each pel signal and a decoder therefor
CA000365014A CA1165861A (en) 1979-11-20 1980-11-19 Encoder-decoder system for multilevel picture elements to prediction error codes for each pel signal and a decoder therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4430680A JPS56141670A (en) 1980-04-04 1980-04-04 Color picture decoder

Publications (2)

Publication Number Publication Date
JPS56141670A true JPS56141670A (en) 1981-11-05
JPS6326586B2 JPS6326586B2 (en) 1988-05-30

Family

ID=12687802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4430680A Granted JPS56141670A (en) 1979-11-20 1980-04-04 Color picture decoder

Country Status (1)

Country Link
JP (1) JPS56141670A (en)

Also Published As

Publication number Publication date
JPS6326586B2 (en) 1988-05-30

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