JPS6338150B2 - - Google Patents

Info

Publication number
JPS6338150B2
JPS6338150B2 JP56147569A JP14756981A JPS6338150B2 JP S6338150 B2 JPS6338150 B2 JP S6338150B2 JP 56147569 A JP56147569 A JP 56147569A JP 14756981 A JP14756981 A JP 14756981A JP S6338150 B2 JPS6338150 B2 JP S6338150B2
Authority
JP
Japan
Prior art keywords
image signal
peak value
line
conversion means
reference voltage
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.)
Expired
Application number
JP56147569A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5848572A (ja
Inventor
Hideyuki Hanaoka
Mitsuo Togashi
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.)
Panasonic System Solutions Japan Co Ltd
Original Assignee
Matsushita Graphic Communication Systems Inc
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 Matsushita Graphic Communication Systems Inc filed Critical Matsushita Graphic Communication Systems Inc
Priority to JP56147569A priority Critical patent/JPS5848572A/ja
Publication of JPS5848572A publication Critical patent/JPS5848572A/ja
Publication of JPS6338150B2 publication Critical patent/JPS6338150B2/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
    • H04N1/40—Picture signal circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP56147569A 1981-09-17 1981-09-17 自動コントラスト補正回路 Granted JPS5848572A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56147569A JPS5848572A (ja) 1981-09-17 1981-09-17 自動コントラスト補正回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56147569A JPS5848572A (ja) 1981-09-17 1981-09-17 自動コントラスト補正回路

Publications (2)

Publication Number Publication Date
JPS5848572A JPS5848572A (ja) 1983-03-22
JPS6338150B2 true JPS6338150B2 (enrdf_load_stackoverflow) 1988-07-28

Family

ID=15433311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56147569A Granted JPS5848572A (ja) 1981-09-17 1981-09-17 自動コントラスト補正回路

Country Status (1)

Country Link
JP (1) JPS5848572A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980077483A (ko) * 1997-04-19 1998-11-16 윤종용 콘트라스트 조정방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4834412A (enrdf_load_stackoverflow) * 1971-09-06 1973-05-18
JPS5518131A (en) * 1978-07-24 1980-02-08 Mitsubishi Electric Corp Signal binary coding device
JPS55124360A (en) * 1979-03-20 1980-09-25 Nec Corp Setting circuit for picture signal slice level

Also Published As

Publication number Publication date
JPS5848572A (ja) 1983-03-22

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