JPS5820064A - 自動コントラスト調整回路 - Google Patents

自動コントラスト調整回路

Info

Publication number
JPS5820064A
JPS5820064A JP56119870A JP11987081A JPS5820064A JP S5820064 A JPS5820064 A JP S5820064A JP 56119870 A JP56119870 A JP 56119870A JP 11987081 A JP11987081 A JP 11987081A JP S5820064 A JPS5820064 A JP S5820064A
Authority
JP
Japan
Prior art keywords
peak value
line
image signal
signal
original image
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
JP56119870A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6260874B2 (enrdf_load_stackoverflow
Inventor
Hideyuki Matsuoka
秀行 松岡
Mitsuo Togashi
富樫　光夫
Keiji Ueki
植木　圭二
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 JP56119870A priority Critical patent/JPS5820064A/ja
Publication of JPS5820064A publication Critical patent/JPS5820064A/ja
Publication of JPS6260874B2 publication Critical patent/JPS6260874B2/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)
JP56119870A 1981-07-29 1981-07-29 自動コントラスト調整回路 Granted JPS5820064A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56119870A JPS5820064A (ja) 1981-07-29 1981-07-29 自動コントラスト調整回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56119870A JPS5820064A (ja) 1981-07-29 1981-07-29 自動コントラスト調整回路

Publications (2)

Publication Number Publication Date
JPS5820064A true JPS5820064A (ja) 1983-02-05
JPS6260874B2 JPS6260874B2 (enrdf_load_stackoverflow) 1987-12-18

Family

ID=14772295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56119870A Granted JPS5820064A (ja) 1981-07-29 1981-07-29 自動コントラスト調整回路

Country Status (1)

Country Link
JP (1) JPS5820064A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03212064A (ja) * 1990-01-17 1991-09-17 Fuji Photo Film Co Ltd 画像読取装置
KR19980077483A (ko) * 1997-04-19 1998-11-16 윤종용 콘트라스트 조정방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03212064A (ja) * 1990-01-17 1991-09-17 Fuji Photo Film Co Ltd 画像読取装置
KR19980077483A (ko) * 1997-04-19 1998-11-16 윤종용 콘트라스트 조정방법

Also Published As

Publication number Publication date
JPS6260874B2 (enrdf_load_stackoverflow) 1987-12-18

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