JPS58172062A - 画信号修正装置 - Google Patents

画信号修正装置

Info

Publication number
JPS58172062A
JPS58172062A JP57054894A JP5489482A JPS58172062A JP S58172062 A JPS58172062 A JP S58172062A JP 57054894 A JP57054894 A JP 57054894A JP 5489482 A JP5489482 A JP 5489482A JP S58172062 A JPS58172062 A JP S58172062A
Authority
JP
Japan
Prior art keywords
circuit
white
signal
density
black
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
JP57054894A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0124470B2 (enrdf_load_stackoverflow
Inventor
Iwao Tanahashi
巌 棚橋
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 JP57054894A priority Critical patent/JPS58172062A/ja
Publication of JPS58172062A publication Critical patent/JPS58172062A/ja
Publication of JPH0124470B2 publication Critical patent/JPH0124470B2/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)
JP57054894A 1982-04-02 1982-04-02 画信号修正装置 Granted JPS58172062A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57054894A JPS58172062A (ja) 1982-04-02 1982-04-02 画信号修正装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57054894A JPS58172062A (ja) 1982-04-02 1982-04-02 画信号修正装置

Publications (2)

Publication Number Publication Date
JPS58172062A true JPS58172062A (ja) 1983-10-08
JPH0124470B2 JPH0124470B2 (enrdf_load_stackoverflow) 1989-05-11

Family

ID=12983301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57054894A Granted JPS58172062A (ja) 1982-04-02 1982-04-02 画信号修正装置

Country Status (1)

Country Link
JP (1) JPS58172062A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081977A (ja) * 1983-10-12 1985-05-10 Ricoh Co Ltd 画像読取処理装置
JPS6094576A (ja) * 1983-10-28 1985-05-27 Hitachi Ltd 画像信号処理プロセツサ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553971A (en) * 1978-10-16 1980-04-19 Oki Electric Ind Co Ltd Facsimile graphic input device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553971A (en) * 1978-10-16 1980-04-19 Oki Electric Ind Co Ltd Facsimile graphic input device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081977A (ja) * 1983-10-12 1985-05-10 Ricoh Co Ltd 画像読取処理装置
JPS6094576A (ja) * 1983-10-28 1985-05-27 Hitachi Ltd 画像信号処理プロセツサ

Also Published As

Publication number Publication date
JPH0124470B2 (enrdf_load_stackoverflow) 1989-05-11

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