JPS5223207A - Method of coding pictures - Google Patents

Method of coding pictures

Info

Publication number
JPS5223207A
JPS5223207A JP9908075A JP9908075A JPS5223207A JP S5223207 A JPS5223207 A JP S5223207A JP 9908075 A JP9908075 A JP 9908075A JP 9908075 A JP9908075 A JP 9908075A JP S5223207 A JPS5223207 A JP S5223207A
Authority
JP
Japan
Prior art keywords
coding pictures
pictures
tones
coding
whites
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
JP9908075A
Other languages
Japanese (ja)
Other versions
JPS5747585B2 (en
Inventor
Keiji Murasugi
Susumu Shibata
Masao Sadamura
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP9908075A priority Critical patent/JPS5223207A/en
Publication of JPS5223207A publication Critical patent/JPS5223207A/en
Publication of JPS5747585B2 publication Critical patent/JPS5747585B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE: To transmit pictures which have stable tones in a minimum time by coding pictures with tones into two values of white and black in the form of the ratio between the numbers of whites and blacks of the picture elements.
COPYRIGHT: (C)1977,JPO&Japio
JP9908075A 1975-08-16 1975-08-16 Method of coding pictures Granted JPS5223207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9908075A JPS5223207A (en) 1975-08-16 1975-08-16 Method of coding pictures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9908075A JPS5223207A (en) 1975-08-16 1975-08-16 Method of coding pictures

Publications (2)

Publication Number Publication Date
JPS5223207A true JPS5223207A (en) 1977-02-22
JPS5747585B2 JPS5747585B2 (en) 1982-10-09

Family

ID=14237925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9908075A Granted JPS5223207A (en) 1975-08-16 1975-08-16 Method of coding pictures

Country Status (1)

Country Link
JP (1) JPS5223207A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563173A (en) * 1978-11-06 1980-05-13 Ricoh Co Ltd Picture signal processing system
JPS56117478A (en) * 1980-02-20 1981-09-14 Mitsubishi Electric Corp Picture display system
JPS57123766A (en) * 1981-01-23 1982-08-02 Ricoh Co Ltd Density gradation processing system of digital facsimile

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135514A (en) * 1973-04-27 1974-12-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135514A (en) * 1973-04-27 1974-12-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563173A (en) * 1978-11-06 1980-05-13 Ricoh Co Ltd Picture signal processing system
JPS56117478A (en) * 1980-02-20 1981-09-14 Mitsubishi Electric Corp Picture display system
JPS57123766A (en) * 1981-01-23 1982-08-02 Ricoh Co Ltd Density gradation processing system of digital facsimile

Also Published As

Publication number Publication date
JPS5747585B2 (en) 1982-10-09

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